US3596925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easily connectable trailer coupling
Assignee: Individual
•
Filing: 1969-09-10
•
Granted: 1971-08-03
•
Expires: 1989-09-10
Abstract
Abstract A trailer coupling of the ball and socket type in which a balltype male trailer connector is attached to a towing vehicle with a pulley being connected coaxially with the male connector so that a cable loop from the trailer can be looped over the pulley and tightened by a winch on the trailer for positioning a female trailer connector portion on the forward end of the trailer adjacent the male connector upon tightening of the loop by the winch.
Inventors
- 👤 Glen W Richie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:30
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/24; B60D1/36; B60D1/38
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
113 words
In a trailer hitch coupling of the type having a male coupling member comprising a hitch ball having a downwardly extending threaded shaft on the towing vehicle over which hitch ball is received a female coupling attached to the forward end of the trailer, the improvement comprising a bearing means connected on said shaft adjacent one end of said male coupling member, rotary pulley means mounted coaxially on said bearing means with respect to said male coupling member for receiving a looped cable extending from the trailer and connected to winch means on the trailer for enabling the positioning of said female connector on said male connector by operation of said winch means.
Claim 2
Dependent Claim
113 words
In a trailer hitch coupling of the type having a male coupling member comprising a hitch ball having a downwardly extending threaded shaft on the towing vehicle over which hitch ball is received a female coupling attached to the forward end of the trailer, the improvement comprising a bearing means connected on said shaft adjacent one end of said male coupling member, rotary pulley means mounted coaxially on said bearing means with respect to said male coupling member for receiving a looped cable extending from the trailer and connected to winch means on the trailer for enabling the positioning of said female connector on said male connector by operation of said winch means.
Claim 3
Dependent Claim
38 words
THe invention of claim 1, wherein said bearing means comprises a hollow shaft bolt threadably received on the lower end of said shaft and having a smooth external surface upon which said pulley means is mounted for rotation.
Claim 4
Dependent Claim
24 words
The invention of claim 2, additionally including a safety bracket surrounding the forward portion of said pulley member and connected to said shaft bolt.
Claim 5
Dependent Claim
33 words
The invention of claim 3, wherein one end of said cable loop is connected to said winch and the other end of said cable loop is connected to the frame of the trailer.
Claim 6
Dependent Claim
25 words
The invention of claim 4, wherein said vertically extending shaft extends downwardly through a hole in a support bracket extending rearwardly from the towing vehicle.
Claim 7
Dependent Claim
34 words
The invention of claim 1, wherein said male hitch member comprises a hitch ball having a downwardly extending threaded shaft extending through a hole in a support bracket extending rearwardly from said towing vehicle.
Claim 8
Dependent Claim
38 words
The invention of claim 6, wherein said bearing means comprises a hollow shaft bolt threadably received on the lower end of said shaft and having a smooth external surface upon which said pulley means is mounted for rotation.
Claim 9
Dependent Claim
24 words
The invention of claim 7, additionally including a safety bracket surrounding the forward portion of said pulley member and connected to said shaft bolt.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |