← Back to Patent Explorer
US3731967A Expired / Lapsed US ⏱️ 0.0 years remaining

Roof walkway for truck cabs

Assignee: Sealed Unit Services Inc
•
Filing: 1971-08-25
•
Granted: 1973-05-08
•
Expires: 1991-08-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A walkway with universal mounting means for mounting on the top of truck cabs and the like of different sizes and shapes. The walkway has a platform with receptacles at each end that receive a slidable bar on the top of each of four legs. The legs may be adjusted in the sockets to various spacings depending on the width of the cab. Mounting brackets are secured to opposite sides of the cab top usually at the curved edge portions thereof so as to transfer the load of the walkway as directly as possible to the cab frame. The legs are connected to the brackets by bolts at connection points located along an axis at each end of the walkway so that any number of tilted positions of the mounting brackets can be accomodated depending on the curvature at the edge of the cab.

Inventors

  • 👤 D Hughes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 05:06
CPC Classifications
B; B60; B60R; B60R3/00; B60R3/005; B62; B62D; B62D33/00; B62D33/06

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 213 words
A walkway for the top of truck cabs and the like comprising: a pair of mounting brackets adapted to be permanently anchored to the top of a truck cab one at each side thereof, each bracket comprising a flat metal strip with ends upturned perpendicularly to provide a pair of spaced coaxial connection points and having a flat surface in its central span that bears against the cab exterior surface adjacent the frame structure at the side of the cab, a rigid one-piece platform adapted to span the top of a truck cab from side-to-side, and having integral open channels along and beneath the longitudinal sides thereof, a pair of spaced legs at each end of said platform each pair having their respective bottom ends fastened to the respective bracket at said connection points located along an axis at each end parallel to said surface and having their respective upper ends slidably received in said channels and selectively attachable therein at one of a plurality of locations, whereby said brackets may be positioned relative to said legs so that a radial line from said axis normal to said surface is angularly disposed relative to said legs as may be necessary to accommodate the particular surface configuration at the side of the cab top.
Claim 2
Dependent Claim 213 words
A walkway for the top of truck cabs and the like comprising: a pair of mounting brackets adapted to be permanently anchored to the top of a truck cab one at each side thereof, each bracket comprising a flat metal strip with ends upturned perpendicularly to provide a pair of spaced coaxial connection points and having a flat surface in its central span that bears against the cab exterior surface adjacent the frame structure at the side of the cab, a rigid one-piece platform adapted to span the top of a truck cab from side-to-side, and having integral open channels along and beneath the longitudinal sides thereof, a pair of spaced legs at each end of said platform each pair having their respective bottom ends fastened to the respective bracket at said connection points located along an axis at each end parallel to said surface and having their respective upper ends slidably received in said channels and selectively attachable therein at one of a plurality of locations, whereby said brackets may be positioned relative to said legs so that a radial line from said axis normal to said surface is angularly disposed relative to said legs as may be necessary to accommodate the particular surface configuration at the side of the cab top.
Claim 3
Dependent Claim 37 words
A walkway as defined in claim 1 wherein said legs have the form of an inverted ''''L'''' and wherein the horizontal arm of each leg is slidably inserted in one open end of one of said channels.
Claim 4
Dependent Claim 15 words
A walkway as defined in claim 2 wherein said legs are of rectangular tubular construction.

References Cited (Backward Citations)

US1300199A Cited
US1512775A Cited
US1839440A Cited
US2775381A Cited
US2683265A Cited
US2771231A Cited
GB1172973A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-05-07 1976-11-06 1977-05-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-05-07 1980-11-06 1981-05-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-05-07 1984-11-06 1985-05-08 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag