US3628487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically operated trim attachment for powerboats
Assignee: Individual
•
Filing: 1970-01-19
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Granted: 1971-12-21
•
Expires: 1990-01-19
Abstract
Abstract A powerboat including a pair of trim members hinged to the stern of the boat and a hydraulic cylinder individual to each trim member. Each hydraulic cylinder is constructed and arranged so that no external hydraulic lines are needed between the boat and the cylinder. The hydraulic pump has unique features to control volume and pressure.
Inventors
- 👤 Charles H Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:04
CPC Classifications
B; B63; B63B; B63B39/00; B63B39/06; B63B39/061
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
195 words
In a powerboat, the combination comprising a pair or trim members hinged to the stern of the boat, one on each side of the centerline of the boat, means for hinging each said trim member along its forward edge to the boat, and a hydraulic cylinder individual to each said trim member, said cylinder comprising a body having a head at one end and a head at the other end, a piston within said body, a shaft connected to said piston extending through said second head, means for connecting said shaft to said trim member, a bracket having a surface complementary to the transom of the boat, means for mounting said bracket on said transom, means interconnecting said bracket and said first-mentioned head of said cylinder in a manner to permit limited relative movement therebetween, said first head having a fluid opening therein, said bracket having a fluid opening therein, said interconnecting means having a fluid opening providing communication between said openings, said interconnecting means between said bracket and said first head comprising an integral flange, said flange having said fluid opening therein providing communication between the openings in said bracket and said first head.
Claim 2
Dependent Claim
195 words
In a powerboat, the combination comprising a pair or trim members hinged to the stern of the boat, one on each side of the centerline of the boat, means for hinging each said trim member along its forward edge to the boat, and a hydraulic cylinder individual to each said trim member, said cylinder comprising a body having a head at one end and a head at the other end, a piston within said body, a shaft connected to said piston extending through said second head, means for connecting said shaft to said trim member, a bracket having a surface complementary to the transom of the boat, means for mounting said bracket on said transom, means interconnecting said bracket and said first-mentioned head of said cylinder in a manner to permit limited relative movement therebetween, said first head having a fluid opening therein, said bracket having a fluid opening therein, said interconnecting means having a fluid opening providing communication between said openings, said interconnecting means between said bracket and said first head comprising an integral flange, said flange having said fluid opening therein providing communication between the openings in said bracket and said first head.
Claim 3
Dependent Claim
18 words
The combination set forth in claim 1 wherein said bracket head and flange are made of integral plastic.
Claim 4
Dependent Claim
33 words
The combination set forth in claim 1 including a flexible wall within aid body of said cylinder in the end thereof opposite the end of said piston which has said shaft extending therethrough.
Claim 5
Dependent Claim
16 words
The combination set forth in claim 3 wherein said flexible wall is generally cylindrical in shape.
Claim 6
Dependent Claim
30 words
The combination set forth in claim 3 wherein said first head is removable, said flexible wall having a portion thereof adapted to be claimed by said head against said body.
Claim 7
Dependent Claim
51 words
The combination set forth in claim 1 including controls for said cylinder comprising a pump, a reservoir, and an inlet extending from said reservoir to said pump, an outlet extending from said pump, first orifice means between said inlet and said reservoir, second orifice means between said outlet and said reservoir.
Claim 8
Dependent Claim
18 words
The combination set forth in claim 6 including a pressure release valve associated with said first-mentioned orifice means.
Claim 9
Dependent Claim
180 words
For use in a powerboat, the combination comprising a trim member adapted to be hinged to the stern of the boat, means for hinging said trim member along its forward edge to the boat, and a hydraulic cylinder, said cylinder comprising a body having a head at one end and a head at the other end, a piston within said body, a shaft connected to said piston extending through said second head, means for connecting said shaft to said trim member, a bracket having a surface generally complementary to the transom of a boat, means for mounting said bracket on said transom, means interconnecting said bracket and said first-mentioned head of said cylinder in a manner to permit limited relative movement therebetween, said first head having a fluid opening therein, said bracket having a fluid opening therein, said interconnecting means comprising a fluid opening providing communication between said openings, said interconnecting means between said bracket and said first head comprising an integral flange, said flange having an opening therein communicating with the openings in said bracket and said first head.
Claim 10
Dependent Claim
180 words
For use in a powerboat, the combination comprising a trim member adapted to be hinged to the stern of the boat, means for hinging said trim member along its forward edge to the boat, and a hydraulic cylinder, said cylinder comprising a body having a head at one end and a head at the other end, a piston within said body, a shaft connected to said piston extending through said second head, means for connecting said shaft to said trim member, a bracket having a surface generally complementary to the transom of a boat, means for mounting said bracket on said transom, means interconnecting said bracket and said first-mentioned head of said cylinder in a manner to permit limited relative movement therebetween, said first head having a fluid opening therein, said bracket having a fluid opening therein, said interconnecting means comprising a fluid opening providing communication between said openings, said interconnecting means between said bracket and said first head comprising an integral flange, said flange having an opening therein communicating with the openings in said bracket and said first head.
Claim 11
Dependent Claim
18 words
The combination set forth in claim 1 wherein said bracket, head and flange are made of integral plastic.
Claim 12
Dependent Claim
33 words
The combination set forth in claim 1 including a flexible wall within said body of said cylinder in the end thereof opposite the end of said piston which has said shaft extending therethrough.
Claim 13
Dependent Claim
16 words
The combination set forth in claim 10 wherein said flexible wall is generally cylindrical in shape.
Claim 14
Dependent Claim
30 words
The combination set forth in claim 10 wherein said first head is removable, said flexible wall having a portion thereof adapted to be clamped by said head against said body.
Claim 15
Dependent Claim
51 words
The combination set forth in claim 1 including controls for said cylinder comprising a pump, a reservoir, and an inlet extending from said reservoir to said pump, an outlet extending from said pump, first orifice means between said inlet and said reservoir, second orifice means between said outlet and said reservoir.
Claim 16
Dependent Claim
18 words
The combination set forth in claim 13 including a pressure release valve associated with said first-mentioned orifice means.
Claim 17
Dependent Claim
150 words
The combination comprising a hydraulic cylinder, said cylinder comprising a body having a first head at one end and a second head at the other end, a piston within said body, a shaft connected to said piston extending through said second head, means for connecting said shaft to a work member, a bracket having a surface generally complementary to the transom of a boat, means for mounting said bracket on a support, means interconnecting said bracket and said first-mentioned heat of said cylinder in a manner to permit limited relative movement therebetween, said first head having a fluid opening therein, said bracket having a fluid opening therein, said interconnecting means comprising a fluid opening providing communication between said openings, said interconnecting means between said bracket and said first head comprising an integral flange, said flange having an opening therein communicating with the openings in said bracket and said first head.
Claim 18
Dependent Claim
150 words
The combination comprising a hydraulic cylinder, said cylinder comprising a body having a first head at one end and a second head at the other end, a piston within said body, a shaft connected to said piston extending through said second head, means for connecting said shaft to a work member, a bracket having a surface generally complementary to the transom of a boat, means for mounting said bracket on a support, means interconnecting said bracket and said first-mentioned heat of said cylinder in a manner to permit limited relative movement therebetween, said first head having a fluid opening therein, said bracket having a fluid opening therein, said interconnecting means comprising a fluid opening providing communication between said openings, said interconnecting means between said bracket and said first head comprising an integral flange, said flange having an opening therein communicating with the openings in said bracket and said first head.
Claim 19
Dependent Claim
18 words
The combination set forth in claim 15 wherein said bracket, head and flange are made of integral plastic.
Claim 20
Dependent Claim
33 words
The combination set forth in claim 15 including a flexible wall within said body of said cylinder in the end thereof opposite the end of said piston which has said shaft extending therethrough.
Claim 21
Dependent Claim
16 words
The combination set forth in claim 17 wherein said flexible wall is generally cylindrical in shape.
Claim 22
Dependent Claim
30 words
The combination set forth in claim 17 wherein said first head is removable, said flexible wall having a portion thereof adapted to be clamped by said head against said body.
Claim 23
Dependent Claim
51 words
The combination set forth in claim 15 including controls for said cylinder comprising a pump, a reservoir, and an inlet extending from said reservoir to said pump, an outlet extending from said pump, first orifice means between said inlet and said reservoir, second orifice means between said outlet and said reservoir.
Claim 24
Dependent Claim
18 words
The combination set forth in claim 20 including a pressure release valve associated with said first-mentioned orifice means.
Claim 25
Dependent Claim
128 words
The combination comprising a hydraulic cylinder, said cylinder comprising a body having a first head at one end and a second head at the other end, a piston within said body, a shaft connected to said piston extending through said second head, means for connecting said shaft to a work member, a bracket, means for mounting said bracket on a support, means interconnecting said bracket and sAid first-mentioned head of said cylinder, said first head having a fluid opening therein, said bracket having a fluid opening therein, said interconnecting means comprising an integral flange having a fluid opening providing communication between said openings, a flexible wall within said body of said cylinder in the end thereof opposite the end of said piston which has said shaft extending therethrough.
Claim 26
Dependent Claim
128 words
The combination comprising a hydraulic cylinder, said cylinder comprising a body having a first head at one end and a second head at the other end, a piston within said body, a shaft connected to said piston extending through said second head, means for connecting said shaft to a work member, a bracket, means for mounting said bracket on a support, means interconnecting said bracket and sAid first-mentioned head of said cylinder, said first head having a fluid opening therein, said bracket having a fluid opening therein, said interconnecting means comprising an integral flange having a fluid opening providing communication between said openings, a flexible wall within said body of said cylinder in the end thereof opposite the end of said piston which has said shaft extending therethrough.
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |