US2899172A - cresci - Google Patents
cresciDownload PDFInfo
- Publication number
- US2899172A US2899172AUS2899172DAUS2899172AUS 2899172 AUS2899172 AUS 2899172AUS 2899172D AUS2899172D AUS 2899172DAUS 2899172 AUS2899172 AUS 2899172A
- Authority
- US
- United States
- Prior art keywords
- cam
- levers
- ram
- roller
- chassis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/02—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with parallel up-and-down movement of load supporting or containing element
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/042—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations actuated by lazy-tongs mechanisms or articulated levers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/0625—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement with wheels for moving around the floor
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/065—Scissor linkages, i.e. X-configuration
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
Definitions
- the present inventionrelates to mechanism for elevating a truck body a substantial distance above its chassis and is similar in some respects to the arrangement illustrated in the patent to Cresci 2,706,102, wherein a pair of crossed lever arms are pivotally connected intermediate their ends and these levers have pivotal connections to the body and chassis respectively.
- One of the objects of the inventionis to overcome initial resistance to elevation of the body by providing in combination with a hydraulic ram a novel form of cam mechanism which acts to raise the body in the preliminary lifting stages.
- Another object of the inventionis to combine the hydraulic ram with the cam in such a manner that, when the cam has raised the levers some distance beyond dead center of their pivotal connection, the ram acts directly on the levers to complete the maximum elevation of the truck body.
- FIG. 1is a side elevation of the mechanism forming a preferred embodiment of the invention
- Fig. 2is an end view of the mechanism shown in Fig. 1;
- Fig. 3is a side view of the levers and cam in one position thereof;
- Fig. 4is a view similar to Fig. 3 with the levers in collapsed or lowermost position;
- Fig. 5is a partial perspective of the means for guiding the lower ends of the levers.
- Fig. 6is an exploded perspective of parts of the mechanism illustrated in Fig. 1.
- the chassis frameis shown at 10 and the truck body frame at 11.
- Connecting the body to the chassisare a pair of outside levers 12 and a pair of inside levers 13, the levers being pivotally connected by a cross shaft 14.
- Levers 12are pivotally connected to the chassis frame at 15, While levers 13 are pivotally connected to the body frame at 16.
- the upper end of each of the levers 12carries a roller 17 constrained to move in a straight line in channel tracks 18 forming part of the body frame.
- the lower end of each of the levers 13carries a pair of rollers 19 constrained to move in channel tracks 21 forming part of the body frame.
- cam members 22Pivoted on cross shaft 14 are cam members 22 the upper end of each of which is pivotally connected by a cross member 27 to the movable cylinder of a hydraulic ram 23, the latter being pivoted to the chassis frame at 24.
- Each camis provided with a free elongated tail portion 25 which is adapted to ride on a roller 26 journaled in the chassis frame at each side thereof when moving from its lowermost position, as shown in Fig. 4, and during the initial stage of elevation to the position illustrated in Fig. 3.
- the body framerests directly on the chassis frame.
- the ramis confined entirely within the combined heights of the body and chassis flames which in the present construction is approximately fifteen inches.
- the pivotal connection of the leversmay be lowered to a point just above its dead center.
- the angle of the hydraulic ram with respect to the horizontalis such that its connection 27 with cam 22 is above the pivotal connection -14 of the levers.
- the cam 22also has a rounded portion or land 28 on the underside thereof which is concentric With the cross shaft 14. As fluid under pressure, supplied by pump 29, forces cylinder 23 rearwardly, the cam portion 28 rides over roller 26 and initiates the first stage of elevation, thus raising the pivot of the lever linkage. At the same time the upper end of the cam, that is that end pivotally connected to the ram cylinder, moves in a clockwise direction about shaft 14 as seen in Fig. 3.
- the tail portion 25 of the cammeanwhile engages the roller 26 to resist this rotation of the cam, so that there is no abrupt movement of the upper end of the cam when the rounded portion 28 rises out of contact with roller 26.
- the cam memberis so designed that the tail portion thereof is sufliciently long that it continues to engage roller 26 until the cross bar 27 is substantially in vertical alignment with cross shaft 14.
- the ramis permitted continuously to exert sufiicient force to the linkage further to raise the body.
- the upper end of each cam at this timeengages a stop member '30 protruding from each of levers 13 so that the thrust of the ram is now exerted directly against levers 13 and through their pivotal connection with levers 12 to the latter through the final stages of body lift.
- the pivotal connection 27 between the cam member and the ramis above the pivotal connection 14 regardless of the position of the cam.
- the linkagemay be locked in the position shown in Fig. l by pins 31 inserted in suitable apertures in the tracks 21. These pins are engageable by rollers 19 to prevent the latter from moving toward the collapsed position of the lever linkage.
- a load carrying vehicleincluding a chassis frame, a body frame adapted to rest on said chassis frame, elevating mechanism for the body frame comprising a pair of arms pivoted to each other intermediate the ends of said arms, each of said arms comprising a rigid one-piece member, one end of one of said arms having a pivotal connection with said chassis frame, one end of the other of said arms having a pivotal connection with said body frame, said connections being in vertical alignment, said chassis frame and said body frame each having a track thereon, a roller mounted on the other end of said one arm engaging the track on said body frame, a roller mounted on the other end of said other arm engaging the track on said chassis frame, a cam member pivoted intermediate its ends to the other of said arms, a roller journaled on said chassis frame, power means connected to one end of said cam member, a land on said earn member'engageablewith said journaled roller to lift said'body frame: from itsrest-' ing position'on the chassis frame in the initial sta'ges of elevation, the free end of said' cam
- a load carrying vehicle as defined in claim 1in which the cammember is pivoted on the pivotal connection betweensaid arms.
- the power meanscomprises a fluid operated rain and in which said ram, cam, and roller are confined within the space defined by the plane of the upper face of the body frame and the plane of the lower face of the chassis frame when said upper frame is resting on said chassis frame.
- a load carrying vehicle as defined in claim 5in which the surface of said land is concentric with the pivotal connection between said power means and said member.
- a load carrying vehicle as defined in claim 1in which said elongated portion is substantially straight and remains in engagement with said journaled roller only until said cam member engages said abutment.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Transportation (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
&
' Aug. 11, 1959 A. L. CRESCI 2,399,172
ELEVATING MECHANISM FOR TRUCK BODIES Filed May 13, 1953 5 Sheets-Sheet 1 ANTHONY 1.. 017556! INVENTOR ATTORNEYS A. L. CRESCI ELEVATING MECHANISM FOR ,TRUCK BODIES Aug. 11, 1959 3 Sheets-Sheet 2 Filed May 13, 1958 mmo/w 1.. GRESO/ BY 4% 1% MW ATTORNEYS Aug. 11, 1959 x A. L. CRESCI ELEVATING MECHANISM FOR TRUCK BODIES 3 Sheets-Sheet 3 Filed May 13, 1958 ANTHONY L. misc! BY All; s M
ATTORNEYS ELEVATING MECM FOR TRUCK BODIES Anthony L. Cresci, Vineland, NJ. Application May 13, 1958, Serial No. 734,913
8 Claims. (Cl. 254-8) The present invention relates to mechanism for elevating a truck body a substantial distance above its chassis and is similar in some respects to the arrangement illustrated in the patent to Cresci 2,706,102, wherein a pair of crossed lever arms are pivotally connected intermediate their ends and these levers have pivotal connections to the body and chassis respectively.
One of the objects of the invention is to overcome initial resistance to elevation of the body by providing in combination with a hydraulic ram a novel form of cam mechanism which acts to raise the body in the preliminary lifting stages.
Another object of the invention is to combine the hydraulic ram with the cam in such a manner that, when the cam has raised the levers some distance beyond dead center of their pivotal connection, the ram acts directly on the levers to complete the maximum elevation of the truck body.
Other and obvious objects of the inventionpwill be apparent from the following description thereof taken with the accompanying drawings in Which Fig. 1 is a side elevation of the mechanism forming a preferred embodiment of the invention;
Fig. 2 is an end view of the mechanism shown in Fig. 1;
Fig. 3 is a side view of the levers and cam in one position thereof;
Fig. 4 is a view similar to Fig. 3 with the levers in collapsed or lowermost position;
Fig. 5 is a partial perspective of the means for guiding the lower ends of the levers; and
Fig. 6 is an exploded perspective of parts of the mechanism illustrated in Fig. 1.
In the drawings, the chassis frame is shown at 10 and the truck body frame at 11. Connecting the body to the chassis are a pair ofoutside levers 12 and a pair ofinside levers 13, the levers being pivotally connected by across shaft 14.Levers 12 are pivotally connected to the chassis frame at 15, Whilelevers 13 are pivotally connected to the body frame at 16. The upper end of each of thelevers 12 carries a roller 17 constrained to move in a straight line inchannel tracks 18 forming part of the body frame. The lower end of each of thelevers 13 carries a pair ofrollers 19 constrained to move inchannel tracks 21 forming part of the body frame.
Pivoted oncross shaft 14 arecam members 22 the upper end of each of which is pivotally connected by across member 27 to the movable cylinder of ahydraulic ram 23, the latter being pivoted to the chassis frame at 24. Each cam is provided with a freeelongated tail portion 25 which is adapted to ride on aroller 26 journaled in the chassis frame at each side thereof when moving from its lowermost position, as shown in Fig. 4, and during the initial stage of elevation to the position illustrated in Fig. 3. When the body is in its lowermost position, as seen in Fig. 4, the body frame rests directly on the chassis frame. At this time the ram is confined entirely within the combined heights of the body and chassis flames which in the present construction is approximately fifteen inches. Thus it is possible not only to reduce this combined height to a minimum, but the pivotal connection of the levers may be lowered to a point just above its dead center.
It will be seen from Fig. 4 that the angle of the hydraulic ram with respect to the horizontal is such that itsconnection 27 withcam 22 is above the pivotal connection -14 of the levers. Thecam 22 also has a rounded portion orland 28 on the underside thereof which is concentric With thecross shaft 14. As fluid under pressure, supplied by pump 29, forcescylinder 23 rearwardly, thecam portion 28 rides overroller 26 and initiates the first stage of elevation, thus raising the pivot of the lever linkage. At the same time the upper end of the cam, that is that end pivotally connected to the ram cylinder, moves in a clockwise direction aboutshaft 14 as seen in Fig. 3. Thetail portion 25 of the cam meanwhile engages theroller 26 to resist this rotation of the cam, so that there is no abrupt movement of the upper end of the cam when therounded portion 28 rises out of contact withroller 26. The cam member is so designed that the tail portion thereof is sufliciently long that it continues to engageroller 26 until thecross bar 27 is substantially in vertical alignment withcross shaft 14. Thus the ram is permitted continuously to exert sufiicient force to the linkage further to raise the body. The upper end of each cam at this time engages a stop member '30 protruding from each oflevers 13 so that the thrust of the ram is now exerted directly againstlevers 13 and through their pivotal connection withlevers 12 to the latter through the final stages of body lift. It is to be noted that thepivotal connection 27 between the cam member and the ram is above thepivotal connection 14 regardless of the position of the cam. In order to relieve the ram of the weight of the fully raised truck body, the linkage may be locked in the position shown in Fig. l bypins 31 inserted in suitable apertures in thetracks 21. These pins are engageable byrollers 19 to prevent the latter from moving toward the collapsed position of the lever linkage.
When the truck body is to be lowered, the fluid in the ram is released through suitable valve mechanism, the Weight of the body being sufficient to force the fluid out of the ram. As the levers reach the position shown in Fig. 3, the upper end portion ofcam 22 moves out of contact withstop 30 and, were it not for the resistance exerted by the tail portion of the cam riding onroller 26, the linkage would lower relatively rapidly. The cam thus acts as a buifer to rapid fluctuations in the final stages of the lowering operation. The cams are so dimensioned that they, as well as the ram, are entirely confined within the combined heights of the chassis and body frames when the body rests directly on the chassis. Thus in this latter position no parts of the ram or cams protrude above the body frame or below the chassis frame.
While a preferred form of the invention has been illuslustrated and described, it is obvious that such changes as fall within the scope of the claims are permissible.
What is claimed is:
l. A load carrying vehicle including a chassis frame, a body frame adapted to rest on said chassis frame, elevating mechanism for the body frame comprising a pair of arms pivoted to each other intermediate the ends of said arms, each of said arms comprising a rigid one-piece member, one end of one of said arms having a pivotal connection with said chassis frame, one end of the other of said arms having a pivotal connection with said body frame, said connections being in vertical alignment, said chassis frame and said body frame each having a track thereon, a roller mounted on the other end of said one arm engaging the track on said body frame, a roller mounted on the other end of said other arm engaging the track on said chassis frame, a cam member pivoted intermediate its ends to the other of said arms, a roller journaled on said chassis frame, power means connected to one end of said cam member, a land on said earn member'engageablewith said journaled roller to lift said'body frame: from itsrest-' ing position'on the chassis frame in the initial sta'ges of elevation, the free end of said' cam membercomprising an elongated portion engagingsaid journaled roller during a subsequent period of elevation of the body frame, and an abutment on said other arm engageable by said one end of said cam to receive the direct thrust of said power means during the final stages of elevation'of the body frame.
2. A load carrying vehicle as defined in claim 1 in which the cammember is pivoted on the pivotal connection betweensaid arms.
3. A load carrying vehicle as defined in claim Z'in which the pivotal connection between the cam member and said power means is in a plane spaced above the pivotal connection between said arms in all positions of the cam member.
4.- A load carrying vehicle as defined in claim 3 in which the power means comprises a fluid operated rain and in which said ram, cam, and roller are confined within the space defined by the plane of the upper face of the body frame and the plane of the lower face of the chassis frame when said upper frame is resting on said chassis frame.
5. A load carrying vehicle as defined in claim 3 in which said land is on the underside of said member.
6. A load carrying vehicle as defined in claim 5 in which the surface of said land is concentric with the pivotal connection between said power means and said member.
7. A load carrying vehicle as defined in claim 6 in which said journaled roller is in engagement with said land when said body frame is in resting position on said chassis frame.
8. A load carrying vehicle as defined in claim 1 in which said elongated portion is substantially straight and remains in engagement with said journaled roller only until said cam member engages said abutment.
References Cited in the'file of this patent UNITED STATES PATENTS 2,471,901 Ross May 31 1949 2,476,380 Manke July 19, 1949 2,706,102 Cresci Apr. 12, 1955
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2899172Atrue US2899172A (en) | 1959-08-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US2899172DExpired - LifetimeUS2899172A (en) | cresci |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2899172A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3032319A (en)* | 1960-08-15 | 1962-05-01 | Lamb Grays Harbor Co Inc | Tray type scissors lift |
| US3214136A (en)* | 1963-10-01 | 1965-10-26 | Eldon A Marks | Elevating mechanism for trailers |
| US3220698A (en)* | 1964-04-02 | 1965-11-30 | Cochran Equipment Company | High lift trailer |
| US3642324A (en)* | 1970-04-27 | 1972-02-15 | Tom S Hydraulic Supply | Load-supporting bed unit for a truck |
| US3998491A (en)* | 1975-02-25 | 1976-12-21 | Sos Consolidated, Inc. | Forage trailer |
| US4092011A (en)* | 1977-06-03 | 1978-05-30 | Moore & Sons, Inc. | Lift mechanism for a truck |
| US4558847A (en)* | 1980-10-22 | 1985-12-17 | Coates Management Pty. Ltd. | Patient lifting table |
| WO1990004565A1 (en)* | 1988-10-25 | 1990-05-03 | Sehlstedt Per Olof | Device for initiating a lifting movement in a lifting device |
| US5016858A (en)* | 1989-01-24 | 1991-05-21 | Mitchell William D | Hydraulic lift mechanism for camper shells |
| WO1992004272A1 (en)* | 1990-08-30 | 1992-03-19 | Raine Vierto | Jack |
| EP0697367A1 (en) | 1994-08-16 | 1996-02-21 | MAHA Maschinenbau Haldenwang GmbH & Co. KG | Scissor lift platform |
| EP1122205A1 (en)* | 1999-11-29 | 2001-08-08 | MAHA Maschinenbau Haldenwang GmbH & Co. KG | Scissor lift platform |
| EP0937677A3 (en)* | 1998-02-21 | 2002-12-11 | The UK Lift Company Ltd. | Scissor Lifts |
| US6789829B1 (en)* | 2003-02-28 | 2004-09-14 | Cory S. Kapels | Lift and dump bed |
| US20070235266A1 (en)* | 2006-03-07 | 2007-10-11 | Roy Dantas | Low profile lift |
| US20100301293A1 (en)* | 2009-05-29 | 2010-12-02 | Joy Mm Delaware | Hoist locking mechanism |
| US9371083B1 (en)* | 2014-12-16 | 2016-06-21 | Acu-Pac, Inc. | Collapsible stackable storage cart |
| US10053343B1 (en)* | 2017-02-07 | 2018-08-21 | Rodney Cameron | Truck bed scissor lift |
| US20180326826A1 (en)* | 2016-01-20 | 2018-11-15 | PENDELMATIC INTERNATIONAL v/JAN MØLLER | A lid assembly for a truck bed |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2471901A (en)* | 1945-04-25 | 1949-05-31 | Weaver Mfg Co | Load-lifting appliance |
| US2476380A (en)* | 1943-09-17 | 1949-07-19 | Walker Mfg Company Of Wisconsi | Lifting mechanism |
| US2706102A (en)* | 1951-06-06 | 1955-04-12 | Anthony L Cresci | Lifting mechanism for truck body |
- 0
- USUS2899172Dpatent/US2899172A/ennot_activeExpired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2476380A (en)* | 1943-09-17 | 1949-07-19 | Walker Mfg Company Of Wisconsi | Lifting mechanism |
| US2471901A (en)* | 1945-04-25 | 1949-05-31 | Weaver Mfg Co | Load-lifting appliance |
| US2706102A (en)* | 1951-06-06 | 1955-04-12 | Anthony L Cresci | Lifting mechanism for truck body |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3032319A (en)* | 1960-08-15 | 1962-05-01 | Lamb Grays Harbor Co Inc | Tray type scissors lift |
| US3214136A (en)* | 1963-10-01 | 1965-10-26 | Eldon A Marks | Elevating mechanism for trailers |
| US3220698A (en)* | 1964-04-02 | 1965-11-30 | Cochran Equipment Company | High lift trailer |
| US3642324A (en)* | 1970-04-27 | 1972-02-15 | Tom S Hydraulic Supply | Load-supporting bed unit for a truck |
| US3998491A (en)* | 1975-02-25 | 1976-12-21 | Sos Consolidated, Inc. | Forage trailer |
| US4092011A (en)* | 1977-06-03 | 1978-05-30 | Moore & Sons, Inc. | Lift mechanism for a truck |
| US4558847A (en)* | 1980-10-22 | 1985-12-17 | Coates Management Pty. Ltd. | Patient lifting table |
| US5192053A (en)* | 1988-10-25 | 1993-03-09 | Sehlstedt Per Olof | Device for initiating a lifting movement in a lifting device |
| WO1990004565A1 (en)* | 1988-10-25 | 1990-05-03 | Sehlstedt Per Olof | Device for initiating a lifting movement in a lifting device |
| US5016858A (en)* | 1989-01-24 | 1991-05-21 | Mitchell William D | Hydraulic lift mechanism for camper shells |
| WO1992004272A1 (en)* | 1990-08-30 | 1992-03-19 | Raine Vierto | Jack |
| EP0697367A1 (en) | 1994-08-16 | 1996-02-21 | MAHA Maschinenbau Haldenwang GmbH & Co. KG | Scissor lift platform |
| EP0937677A3 (en)* | 1998-02-21 | 2002-12-11 | The UK Lift Company Ltd. | Scissor Lifts |
| US6464205B2 (en) | 1999-11-29 | 2002-10-15 | Maha Maschinenbau Haldenwang Gmbh & Co. Kg | Scissors-type lifting platform |
| EP1122205A1 (en)* | 1999-11-29 | 2001-08-08 | MAHA Maschinenbau Haldenwang GmbH & Co. KG | Scissor lift platform |
| US6789829B1 (en)* | 2003-02-28 | 2004-09-14 | Cory S. Kapels | Lift and dump bed |
| US20070235266A1 (en)* | 2006-03-07 | 2007-10-11 | Roy Dantas | Low profile lift |
| US20100301293A1 (en)* | 2009-05-29 | 2010-12-02 | Joy Mm Delaware | Hoist locking mechanism |
| US9371083B1 (en)* | 2014-12-16 | 2016-06-21 | Acu-Pac, Inc. | Collapsible stackable storage cart |
| US20180326826A1 (en)* | 2016-01-20 | 2018-11-15 | PENDELMATIC INTERNATIONAL v/JAN MØLLER | A lid assembly for a truck bed |
| US10625586B2 (en)* | 2016-01-20 | 2020-04-21 | PENDELMATIC INTERNATIONAL v/JAN MØLLER | Lid assembly for a truck bed |
| US10053343B1 (en)* | 2017-02-07 | 2018-08-21 | Rodney Cameron | Truck bed scissor lift |
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