Patent US3703301A successfully refreshed from Google Patents.
US3703301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer hitch
Assignee: SWAN TRAILERS Inc
•
Filing: 1971-02-12
•
Granted: 1972-11-21
•
Expires: 1991-02-12
Abstract
Abstract An inverted generally U-shaped tongue affixed to the front end of a trailer with the forward downwardly directed end thereof having a downwardly directed opening therein and an upwardly projecting member affixed generally centrally in a truck body, which member is constructed to be received within the opening in the tongue, said tongue and member having transverse, aligned openings therethrough with a pin receivable therein. A jack is incorporated in the front end of the trailer to raise and lower the tongue to disengage and engage it with the member mounted in the truck box.
Inventors
- 👤 Dee Randle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:11
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0807; B62D53/0828; B62D53/06; B62D53/061; Y; Y10; Y10S; Y10S280/00; Y10S280/901
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
167 words
An improved trailer hitch comprising: a. a downwardly directed U-shaped tongue member, a first end portion of said tongue member having means for attachment to a trailer in forwardly spaced relationship therefrom and a second end portion of said tongue member being tubular with a downwardly directed opening, said second end portion having a generally horizontally extending opening of a first diameter extending therethrough; b. a plate member having means affixed thereto for attaching said plate member to a draft device for limited pivotal movement; c. an upwardly projecting member having a horizontally extending opening therethrough of a second diameter, said projecting member Being attached to said plate member; and d. a pin having a third diameter which third diameter is smaller than said first diameter and said second diameter, said pin being insertable through said horizontally extending opening in said second end portion of said tongue member and through said horizontally extending opening in said projecting member for attaching said tongue member to said draft device.
Claim 2
Dependent Claim
167 words
An improved trailer hitch comprising: a. a downwardly directed U-shaped tongue member, a first end portion of said tongue member having means for attachment to a trailer in forwardly spaced relationship therefrom and a second end portion of said tongue member being tubular with a downwardly directed opening, said second end portion having a generally horizontally extending opening of a first diameter extending therethrough; b. a plate member having means affixed thereto for attaching said plate member to a draft device for limited pivotal movement; c. an upwardly projecting member having a horizontally extending opening therethrough of a second diameter, said projecting member Being attached to said plate member; and d. a pin having a third diameter which third diameter is smaller than said first diameter and said second diameter, said pin being insertable through said horizontally extending opening in said second end portion of said tongue member and through said horizontally extending opening in said projecting member for attaching said tongue member to said draft device.
Claim 3
Dependent Claim
167 words
An improved trailer hitch comprising: a. a downwardly directed U-shaped tongue member, a first end portion of said tongue member having means for attachment to a trailer in forwardly spaced relationship therefrom and a second end portion of said tongue member being tubular with a downwardly directed opening, said second end portion having a generally horizontally extending opening of a first diameter extending therethrough; b. a plate member having means affixed thereto for attaching said plate member to a draft device for limited pivotal movement; c. an upwardly projecting member having a horizontally extending opening therethrough of a second diameter, said projecting member Being attached to said plate member; and d. a pin having a third diameter which third diameter is smaller than said first diameter and said second diameter, said pin being insertable through said horizontally extending opening in said second end portion of said tongue member and through said horizontally extending opening in said projecting member for attaching said tongue member to said draft device.
Claim 4
Dependent Claim
167 words
An improved trailer hitch comprising: a. a downwardly directed U-shaped tongue member, a first end portion of said tongue member having means for attachment to a trailer in forwardly spaced relationship therefrom and a second end portion of said tongue member being tubular with a downwardly directed opening, said second end portion having a generally horizontally extending opening of a first diameter extending therethrough; b. a plate member having means affixed thereto for attaching said plate member to a draft device for limited pivotal movement; c. an upwardly projecting member having a horizontally extending opening therethrough of a second diameter, said projecting member Being attached to said plate member; and d. a pin having a third diameter which third diameter is smaller than said first diameter and said second diameter, said pin being insertable through said horizontally extending opening in said second end portion of said tongue member and through said horizontally extending opening in said projecting member for attaching said tongue member to said draft device.
Claim 5
Dependent Claim
15 words
The improved trailer of claim 1 wherein said upwardly projecting member comprises a circular plate.
Claim 6
Dependent Claim
69 words
The improved trailer hitch of claim 2 wherein said second end portion of said tongue member has a generally central axis through said downwardly directed opening, said axis extending through said opening in said projecting member and through said pin when said pin is inserted through said horizontally extending opening in said second end portion of said tongue member and through said horizontally extending opening in said circular plate.
References Cited (Backward Citations)
US2393016A
Cited
US2425521A
Cited
US2581833A
Cited
US3336050A
Cited
US3336051A
Cited
US3406852A
Cited
US3433503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |