US3917094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat loader
Assignee: Individual
•
Filing: 1974-09-30
•
Granted: 1975-11-04
•
Expires: 1994-09-30
Abstract
Abstract A boat lifter is provided capable of lifting the transom end of an inverted rowboat or the like upwardly into engagement with a clamp mounted upon a post supported by a trailer hitch or the like at the rear of a car. This lifter may be either mounted on the post, or on a vertical mast on a carriage movable along the ground. With the latter structure, the forward end of the boat may be lifted as well as the transom end.
Inventors
- 👤 Archie K Magneson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:14
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1008
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
146 words
A boat lifter including: a post, means supporting said post in a substantially vertical position, a gear box pivotally connected to the top of said post, an elongated gear rack extending through said gear box and longitudinally movable with respect thereto, pulleys at opposite ends of said gear rack, a winch supported by said post spaced below said gear box, a cable means secured to said winch and extending upwardly over one pulley at one end of said rack, extending longitudinally of said rack, and over said other pulley to extend downwardly for attachment to a boat or the like, a link pivotally connected at one end to said post and pivotally connected to said rack near said one pulley, a gear in said gear box engaging said teeth or said rack for moving the same, and means for operating said gear in said gear box.
Claim 2
Dependent Claim
146 words
A boat lifter including: a post, means supporting said post in a substantially vertical position, a gear box pivotally connected to the top of said post, an elongated gear rack extending through said gear box and longitudinally movable with respect thereto, pulleys at opposite ends of said gear rack, a winch supported by said post spaced below said gear box, a cable means secured to said winch and extending upwardly over one pulley at one end of said rack, extending longitudinally of said rack, and over said other pulley to extend downwardly for attachment to a boat or the like, a link pivotally connected at one end to said post and pivotally connected to said rack near said one pulley, a gear in said gear box engaging said teeth or said rack for moving the same, and means for operating said gear in said gear box.
Claim 3
Dependent Claim
17 words
The structure of claim 1 and including a hook on the downwardly extending end of said cable.
Claim 4
Dependent Claim
18 words
The structure of claim 1 and including a boat transom clamp secured to said post above said winch.
Claim 5
Dependent Claim
22 words
The structure of claim 1 and in which movement of said rack moves said other pulley toward or away from said post.
Claim 6
Dependent Claim
20 words
The structure of claim 1 and in which said rack is grooved along its upper side to accommodate said cable.
Claim 7
Dependent Claim
21 words
The structure of claim 1 and in which said post is secured to means on the rear end of a vehicle.
Claim 8
Dependent Claim
31 words
The structure of claim 6 and including a car top carrier on the top of said vehicle near the forward end thereof adapted to support the forward end of said boat.
Claim 9
Dependent Claim
18 words
The structure of claim 1 and in which said post is mounted on a carriage for movement therewith.
Claim 10
Dependent Claim
32 words
The structure of claim 8 and in which said carriage is elongated and is supported by pairs of wheels at opposite ends thereof, said post being secured intermediate said pairs of wheels.
Claim 11
Dependent Claim
19 words
The structure of claim 9 and in which said post is mounted in a vertical socket on said carriage.
Claim 12
Dependent Claim
29 words
The structure of claim 1 and in which said link is pivotally connected to a clamp mounted on said post, and said winch is separately secured to said post.
References Cited (Backward Citations)
US2333092A
Cited
US2633999A
Cited
US2993605A
Cited
US3072274A
Cited
US3139203A
Cited
US3275296A
Cited
US3369670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |