US4067213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Truck trailer fifth wheel pin lock
Assignee: Lee Raymond Organization Inc
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Filing: 1976-07-23
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Granted: 1978-01-10
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Expires: 1996-07-23
Abstract
Abstract A bowl-like housing has an open mouth. A locking device selectively locks the housing coaxially around the fifth wheel pin of a truck trailer thereby obstructing such pin and preventing coupling thereof to a tractor.
Inventors
- 👤 Oney M. Little
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:15
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0842; B62D53/085; F; F16; F16B; F16B41/00; F16B41/005; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0848; Y10T292/0849; Y10T292/0854; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5854; Y10T70/5867
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
273 words
A truck trailer fifth wheel pin lock for protecting a truck trailer from theft by obstructing the fifth wheel pin of the trailer to prevent coupling thereof to a tractor, said fifth wheel pin having a circumferential circular groove extending therearound, said truck trailer fifth wheel pin lock comprising a bowl-like housing, said housing having an open mouth; and locking means for selectively locking the housing substantially coaxially around the fifth wheel pin of a truck trailer thereby obstructing said fifth wheel pin and preventing coupling thereof to a tractor, said locking means comprising an annular guide member coaxially rotatably mounted on the housing at the open mouth thereof and having a plurality of slots formed therethrough, a plurality of locking members, each having spaced opposite first and second ends, pivotally mounted in the housing at the mouth thereof in equiangularly spaced relation in the area of the first end of each, each of said locking members having a pin extending therefrom through a corresponding one of the slots for guiding the second end of the locking member into locking engagement in the groove of the fifth wheel pin in one position of said guide member and for guiding the second end of the locking member out of locking engagement with the groove of the fifth wheel pin and free therefrom in another position of said guide member, spring means coupled to the housing and the guide member for urging the locking members into locking engagement when the guide member is rotated in a predetermined direction about its axis, and key-released latch means for securing said locking members in position in locking engagement.
Claim 2
Dependent Claim
273 words
A truck trailer fifth wheel pin lock for protecting a truck trailer from theft by obstructing the fifth wheel pin of the trailer to prevent coupling thereof to a tractor, said fifth wheel pin having a circumferential circular groove extending therearound, said truck trailer fifth wheel pin lock comprising a bowl-like housing, said housing having an open mouth; and locking means for selectively locking the housing substantially coaxially around the fifth wheel pin of a truck trailer thereby obstructing said fifth wheel pin and preventing coupling thereof to a tractor, said locking means comprising an annular guide member coaxially rotatably mounted on the housing at the open mouth thereof and having a plurality of slots formed therethrough, a plurality of locking members, each having spaced opposite first and second ends, pivotally mounted in the housing at the mouth thereof in equiangularly spaced relation in the area of the first end of each, each of said locking members having a pin extending therefrom through a corresponding one of the slots for guiding the second end of the locking member into locking engagement in the groove of the fifth wheel pin in one position of said guide member and for guiding the second end of the locking member out of locking engagement with the groove of the fifth wheel pin and free therefrom in another position of said guide member, spring means coupled to the housing and the guide member for urging the locking members into locking engagement when the guide member is rotated in a predetermined direction about its axis, and key-released latch means for securing said locking members in position in locking engagement.
Claim 3
Dependent Claim
185 words
A truck trailer fifth wheel lock as claimed in claim 1, wherein the spring means of the locking means comprises a first plurality of spring pins of the same number as the locking members extending from the housing at the mouth thereof in directions substantially parallel to the axis and equiangularly disposed, each of said first plurality of spring pins extending through a corresponding one of the slots of the guide member different from those accommodating the pins of the locking members, a second plurality of spring pins of the same number as the first plurality extending from the guide member in spaced relation with the slots accommodating the first spring pins in directions substantially parallel to the axis and equiangularly disposed, and a plurality of springs of the same number as the locking members, each of the springs having spaced opposite first and second ends, each of the springs being affixed at its first end to a corresponding one of the first plurality of spring pins and being affixed at its second end to a corresponding one of the second plurality of spring pins.
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) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |