Patent US3794357A successfully refreshed from Google Patents.
US3794357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hitch device
Assignee: Individual
•
Filing: 1972-05-03
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Granted: 1974-02-26
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Expires: 1992-05-03
Abstract
Abstract A hitch device for connecting an implement or a wagon or the like to the draw bar of a draft implement such as a tractor in which the hitch device comprises upper and lower plates connected to the drawn device and adapted to receive the draw bar therebetween and having apertures to receive a pin or bolt which also passes through an aperture in the draw bar. A lock bar is pivotally mounted on the upper plate and has a first latched position where it overlies the pin and prevents disengagement thereof from the apertures and a second position wherein the bar exposes the apertures for insertion and removal of the pin.
Inventors
- 👤 H Frye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:22
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/01; B60D1/02; B60D1/025
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
291 words
A device for use with a hitch arrangement in which fixedly interconnected vertically spaced upper and lower plates on a drawn device are adapted to receive a tractor draw bar therebetween while a headed pin loosely inserted into aligned apertures in said plates and draw bar from above connects the draw bar to the plates in draft transmitting relation; said device comprising a base member adapted to be fixed to said upper plate in spaced relation to the said aperture therein, a stud fixed to and upstanding from said base member, a bar having one end apertured to receive said stud and resting on said base member, said bar being rotatable about the axis of said stud, the other end of said bar overlying said apertures in only one rotated position of the bar, a spring engaging said bar from above and urging said bar toward said base member, said base member having at least one side face which is planar and parallel to the axis of said stud and spaced radially from the stud, said bar comprising means forming a substantially planar shoulder thereon on the underneath and facing said stud and parallel to the axis of the stud and substantially the same radial distance from axis of the stud as said one side face of said base member, said shoulder on said bar aligning with said one side face of said base member in said one rotated position of said bar, said shoulder on said bar and said one side face of said base member forming interengageable elements of latch means for retaining said bar in said one rotated position, said elements being disengageable by vertical movement of said bar on said stud against the bias of said spring.
Claim 2
Independent Claim
291 words
A device for use with a hitch arrangement in which fixedly interconnected vertically spaced upper and lower plates on a drawn device are adapted to receive a tractor draw bar therebetween while a headed pin loosely inserted into aligned apertures in said plates and draw bar from above connects the draw bar to the plates in draft transmitting relation; said device comprising a base member adapted to be fixed to said upper plate in spaced relation to the said aperture therein, a stud fixed to and upstanding from said base member, a bar having one end apertured to receive said stud and resting on said base member, said bar being rotatable about the axis of said stud, the other end of said bar overlying said apertures in only one rotated position of the bar, a spring engaging said bar from above and urging said bar toward said base member, said base member having at least one side face which is planar and parallel to the axis of said stud and spaced radially from the stud, said bar comprising means forming a substantially planar shoulder thereon on the underneath and facing said stud and parallel to the axis of the stud and substantially the same radial distance from axis of the stud as said one side face of said base member, said shoulder on said bar aligning with said one side face of said base member in said one rotated position of said bar, said shoulder on said bar and said one side face of said base member forming interengageable elements of latch means for retaining said bar in said one rotated position, said elements being disengageable by vertical movement of said bar on said stud against the bias of said spring.
Claim 3
Dependent Claim
59 words
A device accorDing to claim 1 in which said base member is a polygonal block having a plurality of side faces at an angle to each other and all parallel to the axis of said stud, said spring surrounding said stud on the side of said bar facing away from said block and urging said bar toward said block.
Claim 4
Dependent Claim
32 words
A device according to claim 2 in which said bar has a cleat fixed to the side facing said block and the side of said cleat facing said block forming said shoulder.
Claim 5
Dependent Claim
110 words
A device according to claim 2 in which said block has a pair of opposite side faces which are parallel and equal distances from the axis of said stud, said pair of side faces being perpendicular to said bar in said one rotated position thereof, a cleat fixed to the side of said bar which faces said block and the side of said cleat facing said block forming said shoulder, said cleat engaging one of said pair of side faces in said one rotated position of said bar and the other of said pair of side faces when said bar is rotated 180* from the said one rotated position thereof.
Claim 6
Dependent Claim
24 words
A device according to claim 2 in which the corners of said block at the top are beveled to faciliate rotation of said bar.
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |