Patent US4344635A successfully refreshed from Google Patents.
US4344635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Short haul tow bar
Assignee: Individual
•
Filing: 1980-11-10
•
Granted: 1982-08-17
•
Expires: 2000-11-10
Abstract
Abstract A short haul tow bar for a boat which is supported at one end by a pair of wheels. The tow bar is of circular tubular configuration at one end with a transverse sleeve welded across it, so that it may extend horizontally from a vehicle bumper with limited pivotal movement in a vertical plane. The bar is then curved upwardly and it is flattened at the other end to form a rectangular receptacle. A coupling bar carries a cork screw type hook which may be turned into the eye generally provided at the bow of a boat and then inserted into the receptacle to support the boat for pushing it into the water.
Inventors
- 👤 Roy E. Welton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:54
CPC Classifications
B; B63; B63C; B63C13/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
197 words
A short haul tow bar for a motor vehicle on which is mounted a square hitch receiver comprising a rectangular tubular receptacle having aligned holes in the sides thereof and a retainer pin receivable in said aligned holes, for moving over a short distance a boat supported at one end by a pair of wheels, said tow bar comprising: a tubular tow bar adapted at one end to be received in and to extend generally horizontally from, said square hitch receiver; restraining means on said one end to receive a retainer pin extended through said aligned holes and prevent withdrawal of said one end from said hitch receiver; vertical stop portions on said one end engageable with the top and bottom of said hitch receiver to restrict closely vertical oscillation of said bar; lateral stop portions on said one end engageable with the sides of said hitch receiver to restrict closely horizontal oscillation of said bar; said tow bar being bent intermediate its ends so that the other end thereof is generally upright; and a generally horizontal hook device carried on said other end and adapted to engage an eye on the other end of said boat.
Claim 2
Dependent Claim
197 words
A short haul tow bar for a motor vehicle on which is mounted a square hitch receiver comprising a rectangular tubular receptacle having aligned holes in the sides thereof and a retainer pin receivable in said aligned holes, for moving over a short distance a boat supported at one end by a pair of wheels, said tow bar comprising: a tubular tow bar adapted at one end to be received in and to extend generally horizontally from, said square hitch receiver; restraining means on said one end to receive a retainer pin extended through said aligned holes and prevent withdrawal of said one end from said hitch receiver; vertical stop portions on said one end engageable with the top and bottom of said hitch receiver to restrict closely vertical oscillation of said bar; lateral stop portions on said one end engageable with the sides of said hitch receiver to restrict closely horizontal oscillation of said bar; said tow bar being bent intermediate its ends so that the other end thereof is generally upright; and a generally horizontal hook device carried on said other end and adapted to engage an eye on the other end of said boat.
Claim 3
Dependent Claim
39 words
The short haul tow bar defined by claim 1 wherein: the other end of said bar forms an upstanding receptable; and including: a complementary coupling bar receivable in said receptacle; said hook device being secured to said coupling bar.
Claim 4
Dependent Claim
39 words
The tow bar defined by claim 2 wherein: said hook device is of helical configuration about a generally vertical axis so that it may be turned through said eye and provide a horizontal support surface over a wide angle.
Claim 5
Dependent Claim
29 words
The tow bar defined by claim 2 wherein: said tow bar is of cylindrical tubular configuration at said one end but flattened at said other end to rectangular configuration.
Claim 6
Dependent Claim
53 words
The tow bar defined by claim 1 including: a transverse hinge sleeve of a length to fit closely into said hitch receiver welded across said tow bar at one end to form said restraining means; surfaces on said sleeve forming said lateral stop portions; said retainer pin being closely receivable through said sleeve.
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) | 1985-08-16 | 1986-02-15 | 1986-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-16 | 1990-02-15 | 1990-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-16 | 1994-02-15 | 1994-08-17 | $7700.00 | Window Closed / Lapsed |