Patent US3800968A successfully refreshed from Google Patents.
US3800968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water reacting means facilitating loading of boat trailers
Assignee: Individual
•
Filing: 1972-08-03
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Granted: 1974-04-02
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Expires: 1992-08-03
Abstract
Abstract Water reacting means in place on a small boat trailer generating a water flow rearwardly therefrom for alignment of a boat hull tethered to the trailer against the influence of a crosswind or crosscurrent which otherwise would misalign the boat to hamper boat launching and retrieving operations.
Inventors
- 👤 H Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:25
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1033; B60P3/1075
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
78 words
In combination, a boat trailer of the type partially submerged during both boat launching and retrieval operations, a winch having an entrained rope attached to the boat prow tethering same prior to winching of the boat onto the trailer, pump means located in place on said trailer and discharging a water flow rearwardly from the trailer whereby the tethered boat is urged by the water flow toward alignment with the trailer centerline to facilitate loading of the boat.
Claim 2
Dependent Claim
78 words
In combination, a boat trailer of the type partially submerged during both boat launching and retrieval operations, a winch having an entrained rope attached to the boat prow tethering same prior to winching of the boat onto the trailer, pump means located in place on said trailer and discharging a water flow rearwardly from the trailer whereby the tethered boat is urged by the water flow toward alignment with the trailer centerline to facilitate loading of the boat.
Claim 3
Dependent Claim
19 words
The combination claimed in claim 1 wherein said pump means is of the centrifugal type including a tangential outlet.
Claim 4
Dependent Claim
22 words
The combination claimed in claim 1 wherein said pump means includes independently powered centrifugal type pumps offset oppositely from the trailer centerline.
Claim 5
Dependent Claim
33 words
The combination claimed in claim 2 additionally including means adjustably mounting said pump means to the trailer to permit adjustment of the pump and hence variation in the direction of the water flow.
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |