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US3664075A Expired / Lapsed US ⏱️ 0.0 years remaining

Protective bumper

Assignee: KELLEY CO Inc
•
Filing: 1969-11-17
•
Granted: 1972-05-23
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Expires: 1989-11-17
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Abstract

Abstract A protective bumper for use with a loading dock. The bumper is mounted on the front face of the loading dock on the side of a dockboard which is located within a pit formed in the dock. The bumper has an L-shape, including a horizontal section that extends along the upper edge of the dock and a vertical section that extends downwardly along the side of the pit. To attach the bumper to the dock, one or more bolts are welded to a curb angle on the dock and the bolts extend within holes formed in the bumper. In the preferred form, the bolts have a generally L-shape with one leg of each bolt being welded flatwise to the curb angle and located within a slot formed in the back surface of the bumper, while the other leg extends outwardly within a hole in the bumper and receives a nut.

Inventors

  • 👤 John F Hazlewood
  • 👤 Herbert T Ruehl

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 04:25
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/001; F; F16; F16F; F16F1/00; F16F1/36; F16F1/42; F16F1/44; F16F2236/00; F16F2236/04

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 97 words
In combination with a loading dock, including a generally vertical front wall having a horizontal edge and a vertical edge joined to the horizontal edge at a corner, a generally L-shaped bumper formed of a resilient material mounted on the front wall of the dock, said bumper including a generally horizontal section disposed adjacent said horizontal edge and including a generally vertical section disposed adjacent the vertical edge, said bumper having an L-shaped substantially continuous outer surface facing in a direction away from said front wall, and mounting means for mounting the bumper on said front wall.
Claim 2
Dependent Claim 97 words
In combination with a loading dock, including a generally vertical front wall having a horizontal edge and a vertical edge joined to the horizontal edge at a corner, a generally L-shaped bumper formed of a resilient material mounted on the front wall of the dock, said bumper including a generally horizontal section disposed adjacent said horizontal edge and including a generally vertical section disposed adjacent the vertical edge, said bumper having an L-shaped substantially continuous outer surface facing in a direction away from said front wall, and mounting means for mounting the bumper on said front wall.
Claim 3
Dependent Claim 95 words
The construction of claim 1, wherein said bumper includes a first hole located at the junction of the horizontal and vertical sections and a second hole located in said vertical section and a third hole located in said horizontal section, the distance between said first and second holes being substantially equal to the distance between said first and third holes so that the bumper can be reversed in position and used on either side of the doCkboard, said mounting means comprising a plurality of connecting members extending within the holes and secured to the dock.
Claim 4
Dependent Claim 57 words
The construction of claim 2, wherein said connecting members are generally L-shaped with each connecting member having a first leg secured to the front wall of the dock and disposed within a recess in the backside of the bumper and each connecting member including a second leg extending outwardly within one of said holes in said bumper.
Claim 5
Dependent Claim 71 words
The construction of claim 1, wherein said bumper includes a hole extending from the front to the rear of the bumper, and said mounting means comprises an L-shaped connecting member having a first leg secured to the front wall of the dock and having a second leg extending within said hole, the rear surface of said bumper being provided with a recess to receive said first leg of the connecting member.
Claim 6
Dependent Claim 28 words
The construction of claim 1, wherein said dock is provided with a recessed pit and said vertical edge borders the pit, and a dockboard mounted within the pit.
Claim 7
Dependent Claim 129 words
In combination with a loading dock having a loading surface and a generally vertical front wall extending downwardly from said loading surface, a metal support member secured to the front wall of the dock, a resilient bumper mounted on the front wall of the dock and having a hole extending from the front surface to the back surface of the bumper, the back surface of said bumper having a recess communicating with said hole, and a connecting member for securing the bumper to the front wall of the dock, said connecting member having a first leg secured to said support member and disposed within said recess and having a second leg located at an angle of about 90* with respect to the first leg and extending within said hole.
Claim 8
Dependent Claim 129 words
In combination with a loading dock having a loading surface and a generally vertical front wall extending downwardly from said loading surface, a metal support member secured to the front wall of the dock, a resilient bumper mounted on the front wall of the dock and having a hole extending from the front surface to the back surface of the bumper, the back surface of said bumper having a recess communicating with said hole, and a connecting member for securing the bumper to the front wall of the dock, said connecting member having a first leg secured to said support member and disposed within said recess and having a second leg located at an angle of about 90* with respect to the first leg and extending within said hole.
Claim 9
Dependent Claim 47 words
The construction of claim 6, wherein the support member is a curb angle located at the edge, joining the loading surface and the front wall, and said first leg is secured flatwise to the portion of the support member disposed on the front wall of the dock.
Claim 10
Dependent Claim 45 words
The structure of claim 6, wherein the outer portion of the hole is provided with an enlarged diameter and the outer end of the second leg is threaded, and said connecting member includes a nut threadedly engaged with the outer end of said second leg.
Claim 11
Dependent Claim 20 words
The structure of claim 6, wherein said bumper has an L-shape and includes a horizontal section and a vertical section.
Claim 12
Dependent Claim 71 words
The construction of claim 6, wherein said bumper is provided with a plurality of holes and a series of connecting members are employed to secure the bumper to the front wall of the dock with each connecting member being associated with a hole, the back surface of said bumper being provided with a series of recesses communicating with the respective holes to receive the first legs of the respective connecting members.
Claim 13
Dependent Claim 71 words
A resilient bumper having a generally L-shaped configuration and including a substantially continuous L-shaped outer surface and an opposed inner surface and having a peripheral surface connecting said outer surface and said inner surface, said bumper being provided with at least one hole extending from the outer surface to the inner surface and said inner surface being provided with a recess communicating with said hole and extending toward the peripheral surface.
Claim 14
Dependent Claim 71 words
A resilient bumper having a generally L-shaped configuration and including a substantially continuous L-shaped outer surface and an opposed inner surface and having a peripheral surface connecting said outer surface and said inner surface, said bumper being provided with at least one hole extending from the outer surface to the inner surface and said inner surface being provided with a recess communicating with said hole and extending toward the peripheral surface.
Claim 15
Dependent Claim 32 words
The bumper of claim 11, wherein a plurality of holes extend from the outer surface to the inner surface and a recess communicates with each hole and extends toward the peripheral surface.
Claim 16
Dependent Claim 59 words
The bumper of claim 12, wherein said bumper includes a first leg and a second leg located at 90* with respect to said first leg, one of said holes being located at the junction of said first and second legs, a second hole being located in said first leg and a third hole being located in said second leg.
Claim 17
Dependent Claim 28 words
The structure of claim 13, wherein the distance between the first hole and second hole is equal to the distance between the first hole and the third hole.
Claim 18
Dependent Claim 35 words
The bumper of claim 13, wherein a pair of said recesses extend between said first hole and said peripheral surface with the recesses of said pair being disposed at 90* with respect to each other.
Claim 19
Dependent Claim 159 words
The bumper of claim 11, wherein said bumper includes a first leg and a second leg located at 90* with respect to the first leg, said bumper having a first hole located at the junction of said first and second legs, a second hole located in said first leg, and a third hole located in said second leg, said peripheral surfaces includes an outer L-shaped section and an inner L-shaped section, the inner surface of said bumper being provided with a series of recesses, a first recess extending between said first hole and the outer section of said peripheral surface, a second recess extending between said first hole and said outer section of the peripheral surface and disposed at 90* with respect to said first recess, a third recess extending between said second hole and the outer section of said peripheral surface, and a fourth recess extending between the third hole and said outer section of said peripheral surface.

References Cited (Backward Citations)

US459251A Cited
US985883A Cited
US2879985A Cited
US3014710A Cited
US3096973A Cited
FR1370858A Cited
US3335689A Cited
US3419241A Cited
US3539173A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-05-23 1975-11-22 1976-05-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-05-23 1979-11-22 1980-05-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-05-23 1983-11-22 1984-05-23 $7700.00 Window Closed / Lapsed

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