US3581846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety locking block device for wheeled vehicles
Assignee: Individual
•
Filing: 1969-08-20
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Granted: 1971-06-01
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Expires: 1989-08-20
Abstract
Abstract A pair of blocks shaped as chocks to fit under the forward and rearward portions of a vehicle wheel are joined together by a tie bar having one end secured to one block and having its other end slidingly received in ears projecting from a locking plate secured to the other block. A locking pin bearing a cam can be turned to force the cam against the bar. The pin handle is in the form of a loop and an eye is secured in the block adjacent the handle so that the pin may be secured in locked position by a padlock through handle and eye. Each block also has another projecting eye and a chain passed through the latter eyes and around the wheel can be locked by the padlock to prevent theft of the vehicle.
Inventors
- 👤 Julian A Janus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:04
CPC Classifications
B; B60; B60T; B60T3/00; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/402; Y10T70/409; Y10T70/50; Y10T70/5611; Y10T70/5836
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
215 words
A locking block device for wheeled vehicles comprising a pair of blocks, each having a flat ground contacting surface, inner and outer side surfaces and a curved surface adapted to contact the perimeter of a wheel, the ground surface and the curved surface intersecting at a small angle so that the blocks can be driven partially under the front and back lower portions of the wheel tread; an elongated locking bar connecting the blocks and having one end inturned and secured at the outer side surface of one block; a locking plate secured to the outer surface of the other block, the locking plate having vertically extending ears projecting therefrom at either end, the vertical ears having holes therein through which the bar extends, the locking plate also having horizontally extending ears projecting therefrom at its top and bottom, the horizontal ears having vertically aligned holes therethrough; and a locking pin having aligned portions extending through the horizontal ears, a handle portion at its upper end adapted to be manually grasped for turning the pin, and an offset cam portion adapted to contact the locking bar and to become jammed against the bar to lock the bar in the vertical ears when the pin is turned for locking the blocks in position against the wheel.
Claim 2
Dependent Claim
215 words
A locking block device for wheeled vehicles comprising a pair of blocks, each having a flat ground contacting surface, inner and outer side surfaces and a curved surface adapted to contact the perimeter of a wheel, the ground surface and the curved surface intersecting at a small angle so that the blocks can be driven partially under the front and back lower portions of the wheel tread; an elongated locking bar connecting the blocks and having one end inturned and secured at the outer side surface of one block; a locking plate secured to the outer surface of the other block, the locking plate having vertically extending ears projecting therefrom at either end, the vertical ears having holes therein through which the bar extends, the locking plate also having horizontally extending ears projecting therefrom at its top and bottom, the horizontal ears having vertically aligned holes therethrough; and a locking pin having aligned portions extending through the horizontal ears, a handle portion at its upper end adapted to be manually grasped for turning the pin, and an offset cam portion adapted to contact the locking bar and to become jammed against the bar to lock the bar in the vertical ears when the pin is turned for locking the blocks in position against the wheel.
Claim 3
Dependent Claim
70 words
The locking block device defined in Claim 1 wherein the locking pin handle portion comprises an eye offset from the aligned pin portions and angularly offset from the cam portion, the locking plate and pin being so arranged that, when the blocks are in place against a plane wheel, a line may be attached to the handle portion and pulled from the rear of the plane to unlock the bar.
Claim 4
Dependent Claim
75 words
The locking block device defined in claim 1 wherein the locking pin handle portion comprises an eye offset from the aligned pin portions and said other block having a fixed eye projecting from its outer surface spaced a predetermined distance from the pin handle eye when the pin is in locked position, and including a padlock having a shackle portion adapted to be passed through the adjacent eyes for locking the pin in locked position.
Claim 5
Dependent Claim
152 words
The locking block device defined in claim 1 wherein each block has a chain-receiving eye projecting therefrom, a padlock, and a locking chain having links at either end through which the shackle portion of the padlock is adapted to pass, the chain being of such length as to be passed through the eyes and completely around the vehicle above the wheel axle on the inside and having links at its ends adapted to be secured together by the padlock for locking the chain about the wheel, the locking chain having a cross chain having one end secured to the locking chain above the axle and adapted to pass therefrom over the top of the wheel to the locking chain on the outside of the wheel, the other end of the cross chain having a link through which the shackle of the padlock is also adapted to pass, whereby the device is theftproof.
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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |