Patent US4240661A successfully refreshed from Google Patents.
US4240661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yoke
Assignee: OGRENS SVETS OCH MEK VERKSTAD AB
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Filing: 1979-03-06
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Granted: 1980-12-23
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Expires: 1999-03-06
Abstract
Abstract Yoke particularly for lifting motor-cars by applying lifting forks under an axle or other suitable lifting point of the car and thereafter pushing the yoke upwards. The yoke has two end portions each designed as an open box formed of two longitudinal vertical side plates and at least one vertical end plate. A sleeve for journaling a shaft bar extends through each end portion and has an outer diameter which is somewhat smaller than the distance between the vertical side plates, so that the sleeve may be longitudinally displaced within the open box between two end positions and may be securably adjusted in different positions between the two end positions.
Inventors
- 👤 Hans Ogren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:47
CPC Classifications
B; B66; B66F; B66F7/00; B66F7/28; B66F13/00; Y; Y10; Y10S; Y10S294/00; Y10S294/904
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
153 words
Yoke designed in each end to be provided with an up-right lifting fork or other support for an object to be lifted, particularly a yoke for lifting motor-cars by applying the lifting forks under an axle of the car or under other suitable lifting point and thereafter pushing the yoke upwards, characterized in that the yoke has two end portions in each of which is provided a sleeve for journaling a shaft bar of said lifting fork or corresponding support, each end portion being designed as an open box formed of two longitudinal, vertical side plates and at least one vertical end plate, said sleeve extending through said open box and having an outer diameter which is somewhat smaller than the distance between the vertical side plates, so that the sleeve may be displaced in the box between two end positions, said sleeve being securably adjustable in different positions between the end positions.
Claim 2
Dependent Claim
153 words
Yoke designed in each end to be provided with an up-right lifting fork or other support for an object to be lifted, particularly a yoke for lifting motor-cars by applying the lifting forks under an axle of the car or under other suitable lifting point and thereafter pushing the yoke upwards, characterized in that the yoke has two end portions in each of which is provided a sleeve for journaling a shaft bar of said lifting fork or corresponding support, each end portion being designed as an open box formed of two longitudinal, vertical side plates and at least one vertical end plate, said sleeve extending through said open box and having an outer diameter which is somewhat smaller than the distance between the vertical side plates, so that the sleeve may be displaced in the box between two end positions, said sleeve being securably adjustable in different positions between the end positions.
Claim 3
Dependent Claim
35 words
Yoke according to claim 1, characterized in an upper plate secured to the sleeve and having a through hole for the sleeve and/or for said shaft bar, and a lower plate secured to the sleeve.
Claim 4
Dependent Claim
75 words
Yoke according to claim 12, characterized in that at least one of said upper and lower plates extends past the outer surface of the vertical side plates which define said open box, and that from said at least one of said upper and lower plates there extends a pair of catching plates over said vertical side plates so that an out-buckling of said vertical side plates because of the load upon the yoke is prevented.
Claim 5
Dependent Claim
25 words
Yoke according to claim 3, characterized in that said upper and said lower plates are provided with catching plates extending over the vertical side plates.
Claim 6
Dependent Claim
139 words
Yoke according to any of claims 1-4, characterized in that an upper edge of each of the vertical side plates and a lower side of the upper plate are provided with cooperating teeth and grooves, and that a lower edge of the vertical side plates is separated from the lower plate by a distance which is somewhat larger than the depth of the grooves, making it possible to release the upper plate from its engagement with the upper edges of the side plates by raising the sleeve within the box so that the lower plate is pressed against the lower edges of the side plates, whereupon the teeth and grooves are disengaged and the sleeve may be displaced to any position in the box and secured in that position by thereafter being relowered to reengage the teeth and grooves.
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) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |