Patent US3740077A successfully refreshed from Google Patents.
US3740077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shiftable footing for trailers
Assignee: Individual
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Filing: 1972-05-08
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Granted: 1973-06-19
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Expires: 1992-05-08
Abstract
Abstract A two-part footing is disclosed to provide a broad base to receive and support the weight-bearing, levelling leg associated with the two-bar of a trailer. One part of said footing rests upon a ground-engaging base plate and means is provided permitting easy lateral shifting of the supported part and a load borne by it, relative the base plate. A modified form includes a pivotally associated sub-base plate permitting the footing to be revolved about an axis established by the sub-base plate.
Inventors
- 👤 R Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:51
CPC Classifications
B; B60; B60S; B60S9/00; B60S9/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
In combination with a trailer equipped with means to couple the trailer to the rear of a tractor unit, and said means includes a ground-engaging leg operable to support said trailer when uncoupled from the tractor, shiftable footing means for said leg, comprising: a base plate means to rest on the ground and shaped at its upper surface to define a track; a foot plate superposed on said base plate means and shaped to slidingly interfit with said track, said foot plate including means to receive and engage the bottom of said leg; and said base plate means having a plurality of apertures longitudinally disposed along said track anD adapted to receive an end of a prying tool operable to exert pressure on said foot plate to slide the same along said track.
Claim 2
Dependent Claim
133 words
In combination with a trailer equipped with means to couple the trailer to the rear of a tractor unit, and said means includes a ground-engaging leg operable to support said trailer when uncoupled from the tractor, shiftable footing means for said leg, comprising: a base plate means to rest on the ground and shaped at its upper surface to define a track; a foot plate superposed on said base plate means and shaped to slidingly interfit with said track, said foot plate including means to receive and engage the bottom of said leg; and said base plate means having a plurality of apertures longitudinally disposed along said track anD adapted to receive an end of a prying tool operable to exert pressure on said foot plate to slide the same along said track.
Claim 3
Dependent Claim
29 words
The combination according to claim 1 in which the base plate means track is in the shape of a groove and said foot plate has a member fitting therein.
Claim 4
Dependent Claim
20 words
The combination according to claim 2 in which said plurality of apertures is disposed in the bottom of said groove.
Claim 5
Dependent Claim
22 words
The combination according to claim 3 in which said plurality of apertures comprises a series of laterally extended longitudinally spaced apart slots.
Claim 6
Dependent Claim
26 words
The combination according to claim 4 in which an end of said foot plate is notched above said track to be engaged by a pry bar.
Claim 7
Dependent Claim
42 words
The combination according to claim 1 in which said base plate means includes a base plate and a sub-base plate underlying said base plate in face-to-face relation, and axial means is provided permitting said base plate to rotate relative said sub-base plate.
Claim 8
Dependent Claim
21 words
The combination according to claim 1 in which the means to receive the bottom of said leg is a socket recess.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |