Patent US3727937A successfully refreshed from Google Patents.
US3727937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snowmobile towing hitch
Assignee: Individual
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Filing: 1972-01-05
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Granted: 1973-04-17
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Expires: 1992-01-05
Abstract
Abstract A hitch for towing one snowmobile with another which can be quickly disassembled for storage and transporting and readily reassembled for use. The hitch has a T-shaped tongue having an extendible cross member assembly. The outer ends swivel about the elongate axis of the cross member assembly. A pair of attaching clamp units are pivotally mounted in the swivel ends of the cross member assembly for clamping on the toe braces of the skis of a snowmobile which is to be towed.
Inventors
- 👤 E Maki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:13
CPC Classifications
B; B62; B62K; B62K27/00; B62K27/10; B62K27/12; B60; B60D; B60D1/00; B60D1/14; B60D1/167; B62M; B62M27/00; B62M27/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
149 words
A hitch for towing one snowmobile with another, comprising: a. a rigid T-shaped tongue for substantially horizontal pivotal attachment to a towing snowmobile, b. a pair of rigid lateral connector members removably pinned in fixed relation to the cross member of said T-shaped tongue, c. a pair of rigid elongate lateral extension members having their inner ends telescopically mounted on said connector members for axial adjustment thereon and removal therefrom, said extension members having outer swivel ends rotatable with respect to said inner ends about the elongate axis of said extension members, d. a pair of attaching clamp units mounted on the outer swivel ends of said lateral extension members for receiving and clamping on the front toe braces of the skis of a snowmobile to be towed, said attaching clamp units being pivotally movable about an axis substantially perpendicular to the elongate axis of said lateral extension members.
Claim 2
Dependent Claim
149 words
A hitch for towing one snowmobile with another, comprising: a. a rigid T-shaped tongue for substantially horizontal pivotal attachment to a towing snowmobile, b. a pair of rigid lateral connector members removably pinned in fixed relation to the cross member of said T-shaped tongue, c. a pair of rigid elongate lateral extension members having their inner ends telescopically mounted on said connector members for axial adjustment thereon and removal therefrom, said extension members having outer swivel ends rotatable with respect to said inner ends about the elongate axis of said extension members, d. a pair of attaching clamp units mounted on the outer swivel ends of said lateral extension members for receiving and clamping on the front toe braces of the skis of a snowmobile to be towed, said attaching clamp units being pivotally movable about an axis substantially perpendicular to the elongate axis of said lateral extension members.
Claim 3
Dependent Claim
135 words
The snowmobile towing hitch as specified in claim 1, wherein each of said attaching clamp units comprise: a. a cylindrical spacer sleeve rotatably received in the swivel end of said lateral extension mEmber for rotation about a second axis substantially perpendicular to the elongate axis of said extension member, said spacer sleeve being longer than the cross section of the swivel end through which it extends, b. a stud extending through said spacer sleeve and having a threaded end, c. a pair of clamping jaws mounted on the end of said stud opposite said threaded end, and d. a tightener on the threaded end of said stud for drawing said clamping jaws toward one another, said spacer sleeve maintaining the free movement of said attaching clamp unit in said swivel end about said second axis.
Claim 4
Dependent Claim
49 words
The snowmobile towing hitch as specified in claim 2, wherein the first jaw of said pair of clamping jaws is mounted on the end of said stud opposite said threaded end and the second jaw is slideably received on said stud between said first jaw and said spacer sleeve.
Claim 5
Dependent Claim
44 words
The snowmobile towing hitch as specified in claim 2 wherein each of said attaching clamp units has a locking member pivotally mounted on one of said jaws and releaseably engageable with the other jaw of said pair of jaws for linking said jaws together.
Claim 6
Dependent Claim
28 words
The snowmobile towing hitch as specified in claim 1 having a series of spaced adjustment holes in said members for adjusting the lateral position of said clamping units.
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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |