US3776173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propulsion system for a boat
Assignee: Individual
•
Filing: 1971-10-29
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Granted: 1973-12-04
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Expires: 1991-10-29
Abstract
Abstract The present invention relates to a propulsion system for a boat; and more particularly discloses a propulsion system that not only provides forward movement and directional control, but also provides means for controlling the attitude of the boat. The disclosed system accomplishes this dual result by the use of a novel jet nozzle mounting structure that permits the nozzle to pivot in a horizontal direction and/or in a vertical direction. Pivoting in either direction is independent of the other, but may still be combined with the other one when so desired, so that any combination of boat heading and attitude may be provided.
Inventors
- 👤 R Horwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:15
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/10; B63H11/107; B63H11/113
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
135 words
A jet propulsion system for a boat, comprising: a jet producing nozzle; said nozzle comprising a substantially spherically configurated bearing surface; direction control means for pivoting said nozzle horizontalLy around a vertically oriented azimuth pivot axis, for controlling the direction of said boat; trim angle control means for pivoting said nozzle vertically around a horizontally oriented elevation pivot axis, for controlling the attitude of said boat; a housing having a flared housing portion adapted to partially enclose said bearing surface of said nozzle; a support ring positioned to peripherally encircle said housing portion; means for pivotally attaching said support ring on said housing portion for causing said support ring to pivot in only a first manner; means for attaching said nozzle to said support ring for causing said nozzle to pivot in said first manner.
Claim 2
Dependent Claim
135 words
A jet propulsion system for a boat, comprising: a jet producing nozzle; said nozzle comprising a substantially spherically configurated bearing surface; direction control means for pivoting said nozzle horizontalLy around a vertically oriented azimuth pivot axis, for controlling the direction of said boat; trim angle control means for pivoting said nozzle vertically around a horizontally oriented elevation pivot axis, for controlling the attitude of said boat; a housing having a flared housing portion adapted to partially enclose said bearing surface of said nozzle; a support ring positioned to peripherally encircle said housing portion; means for pivotally attaching said support ring on said housing portion for causing said support ring to pivot in only a first manner; means for attaching said nozzle to said support ring for causing said nozzle to pivot in said first manner.
Claim 3
Dependent Claim
25 words
The combination of claim 1 including; means for attaching said nozzle to said support ring for causing said nozzle to pivot in a second manner.
Claim 4
Dependent Claim
36 words
The combination of claim 2 including means comprising a directional control rod and a directional control linkage interlinking said directional control rod and said support ring, for causing said nozzle to pivot in said first manner.
Claim 5
Dependent Claim
38 words
The combination of claim 2 including means, comprising a trim angle control rod and a trim angle control linkage interlinking said trim angle control rod and said nozzle, for causing said nozzle to pivot in said second manner.
Claim 6
Dependent Claim
19 words
The combination of claim 2 wherein said first pivotal manner is horizontal, and said second pivotal manner is vertical.
Claim 7
Dependent Claim
280 words
A jet propulsion system for a boat, comprising; a jet producing nozzle having a substantially spherically configurated bearing surface; a housing having a flared housing portion adapted to partially enclose said bearing surface of sai nozzle; means, comprising a sealing O-ring positioned in the interior surface of said housing portion for providing a seal between the interior surface of said housing portion and said bearing surface of said nozzle; direction control means for pivoting said nozzle horizontally around a vertically oriented azimuth axis, for controlling the horizontal direction of said jet from said nozzle; said direction control means comprising a support ring positioned to peripherally encircle said housing portion; said direction control means further comprising pivot means, including a pivot pin arrangement between said support ring and said housing portion, for causing said support ring to be limited to a pivotal movement in only a horizontal direction; said direction control means further comprising means for attaching said nozzle to said support ring, for causing said nozzle to pivot in said horizontal direction; means, comprising a direction control rod and a direction control linkage interlinking said direction control rod and said support ring, for actuating said direction control means; trim angle control means for pivoting said nozzle vertically around a horizontally oriented elevation axis, for controlling the vertical direction of said jet from said nozzle; said trim angle control means comprising pivot means, including a pivot pin arrangement between said support ring and said nozzle, for causing said nozzle to pivot in a vertical direction; means, comprising a trim angle rod and a trim angle linkage interlinking said trim angle rod and said nozzle, for actuating said trim angle control means.
Claim 8
Dependent Claim
280 words
A jet propulsion system for a boat, comprising; a jet producing nozzle having a substantially spherically configurated bearing surface; a housing having a flared housing portion adapted to partially enclose said bearing surface of sai nozzle; means, comprising a sealing O-ring positioned in the interior surface of said housing portion for providing a seal between the interior surface of said housing portion and said bearing surface of said nozzle; direction control means for pivoting said nozzle horizontally around a vertically oriented azimuth axis, for controlling the horizontal direction of said jet from said nozzle; said direction control means comprising a support ring positioned to peripherally encircle said housing portion; said direction control means further comprising pivot means, including a pivot pin arrangement between said support ring and said housing portion, for causing said support ring to be limited to a pivotal movement in only a horizontal direction; said direction control means further comprising means for attaching said nozzle to said support ring, for causing said nozzle to pivot in said horizontal direction; means, comprising a direction control rod and a direction control linkage interlinking said direction control rod and said support ring, for actuating said direction control means; trim angle control means for pivoting said nozzle vertically around a horizontally oriented elevation axis, for controlling the vertical direction of said jet from said nozzle; said trim angle control means comprising pivot means, including a pivot pin arrangement between said support ring and said nozzle, for causing said nozzle to pivot in a vertical direction; means, comprising a trim angle rod and a trim angle linkage interlinking said trim angle rod and said nozzle, for actuating said trim angle control means.
References Cited (Backward Citations)
US3401887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |