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US3593531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine fender
Assignee: Texaco Inc
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Filing: 1969-06-27
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Granted: 1971-07-20
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Expires: 1989-06-27
Abstract
Abstract The invention relates to a fender for marine structures such as a support leg or column positioned to elevate a working platform above the water''s surface. The fender is comprised of shockabsorbing members at least partially submerged to receive and absorb the impact of floating vessels, debris or the like. The fender includes cooperatively arranged hydraulic and pneumatic chambers, the hydraulic chamber being communicated with the body of water whereby to be maintained in a substantially full condition. The pneumatic chamber is separated from the hydraulic chamber by a yieldable diaphragm which is displaced into the air chamber as the fender is deformed in response to contact with a large floating body.
Inventors
- 👤 Fuad T Saadeh
- 👤 Ivo C Pogonowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:26
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/20; E02B3/26; Y; Y02; Y02A; Y02A30/00; Y02A30/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
207 words
The combination with a marine structure positioned at an offshore body of water and protruding upwardly beyond the surface thereof, of a fender for absorbing the force of floating objects coming in forceful contact with said structure and comprising; a deformable wall casing, being at least partially submerged in the water, said casing when in an undeformed condition including spaced-apart inner and outer walls defining an inner chamber therebetween, said inner wall having a rigid backup plate, and said outer wall being inwardly displaceable when contacted by a floating object, a resilient diaphragm extending transversely of said casing and being attached to said spaced-apart inner and outer walls of the latter whereby to form separate liquid and pneumatic compartments within said chamber, said liquid compartment being at least partially submerged in the water and having a check valve means communicating said liquid chamber with said water whereby to maintain the quantity of water therein, constricted passage means transversing said outer wall of said casing to communicate said liquid-holding compartment with the water whereby compression of said compartment due to a deforming force against the outer wall thereof, will exhaust water from said compartment through said restricted passage means and urge said resilient diaphragm into said pneumatic compartment.
Claim 2
Dependent Claim
207 words
The combination with a marine structure positioned at an offshore body of water and protruding upwardly beyond the surface thereof, of a fender for absorbing the force of floating objects coming in forceful contact with said structure and comprising; a deformable wall casing, being at least partially submerged in the water, said casing when in an undeformed condition including spaced-apart inner and outer walls defining an inner chamber therebetween, said inner wall having a rigid backup plate, and said outer wall being inwardly displaceable when contacted by a floating object, a resilient diaphragm extending transversely of said casing and being attached to said spaced-apart inner and outer walls of the latter whereby to form separate liquid and pneumatic compartments within said chamber, said liquid compartment being at least partially submerged in the water and having a check valve means communicating said liquid chamber with said water whereby to maintain the quantity of water therein, constricted passage means transversing said outer wall of said casing to communicate said liquid-holding compartment with the water whereby compression of said compartment due to a deforming force against the outer wall thereof, will exhaust water from said compartment through said restricted passage means and urge said resilient diaphragm into said pneumatic compartment.
Claim 3
Dependent Claim
33 words
In a marine structure as defined in claim 1 wherein said constricted passage means includes a plurality of orifices formed along the outer wall of said casing normally contacted by said floating objects.
Claim 4
Dependent Claim
36 words
In a marine structure as defined in claim 1 wherein said casing is carried on said marine structure in such manner to curve said casing and provide a curved outer wall for contacting said floating object.
Claim 5
Dependent Claim
34 words
In a marine structure as defined in claim 1 including check valve means communicating said pneumatic chamber with a source of air to permit a unidirectional flow of the latter into said pneumatic chamber.
Claim 6
Dependent Claim
35 words
In a marine structure as defined in claim 1 including biasing means disposed in said hydraulic compartment and engaging the deformable outer wall thereof whereby inward deformation of the latter will compress said biasing means.
Claim 7
Dependent Claim
45 words
In a marine structure as defined in claim 5 wherein said biasing means includes at least one compression spring being substantially horizontally positioned in said hydraulic compartment to urge said Inner and outer walls apart in response to the inner deformation of said inner wall.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |