US3971084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hull construction and method for forming same
Assignee: Individual
•
Filing: 1974-03-07
•
Granted: 1976-07-27
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Expires: 1994-03-07
Abstract
Abstract A hull construction especially suited to inhibit marine growth and a method for forming same is provided. The hull construction includes an outer surface having alternating metallic areas and fiber glass areas defining the entire outer hull surface. The metal forming the metallic areas is of the type which inhibits marine growth.
Inventors
- 👤 I. Martin Spier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:32
CPC Classifications
B; B63; B63B; B63B59/00; B63B59/04; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
75 words
A hull construction formed of at least one fabricated layer defining the outer surface layer comprising a metal which inhibits the growth on or adherence to of marine life selected from the group consisting of copper and copper alloy, the metal defining a plurality of interstices on the outer surface; and plastic material being interleaved in said interstices defined by said metal to define an exterior surface which includes only said metal and plastic material.
Claim 2
Dependent Claim
75 words
A hull construction formed of at least one fabricated layer defining the outer surface layer comprising a metal which inhibits the growth on or adherence to of marine life selected from the group consisting of copper and copper alloy, the metal defining a plurality of interstices on the outer surface; and plastic material being interleaved in said interstices defined by said metal to define an exterior surface which includes only said metal and plastic material.
Claim 3
Dependent Claim
75 words
A hull construction formed of at least one fabricated layer defining the outer surface layer comprising a metal which inhibits the growth on or adherence to of marine life, the metal defining a mesh screen, the openings therein defining alternating areas on said outer surface; and plastic material being interleaved in each of said alternating areas defined by said mesh screen to define an exterior surface which includes only said mesh screen and plastic material.
Claim 4
Dependent Claim
75 words
A hull construction formed of at least one fabricated layer defining the outer surface layer comprising a metal which inhibits the growth on or adherence to of marine life, the metal defining a mesh screen, the openings therein defining alternating areas on said outer surface; and plastic material being interleaved in each of said alternating areas defined by said mesh screen to define an exterior surface which includes only said mesh screen and plastic material.
Claim 5
Dependent Claim
29 words
A hull as claimed in claim 2, wherein the undercut formed by expanding the openings in the mesh screen effect a gripping of the screen by said plastic material.
Claim 6
Dependent Claim
36 words
A hull as claimed in claim 2, wherein said plastic material is fiber glass and includes a jell coat layer defining the outermost portion of the alternating areas of the outer surface of said hull construction.
Claim 7
Dependent Claim
39 words
A hull as claimed in claim 3, wherein said at least one fabricated layer includes reinforced chopped rovings such as fiberglass and setting plastics such as epoxy, said rovings and epoxy filling in the spaces in said mesh screen.
Claim 8
Dependent Claim
42 words
A hull as claimed in claim 4, said outer surface layer of said hull construction adjacent said mesh screen and jell coat includes a woven fiber glass mat covering said entire surface formed by said mesh screen and chopped fiber glass rovings.
Claim 9
Dependent Claim
13 words
A hull as claimed in claim 3, wherein said mesh screen is copper.
Claim 10
Dependent Claim
35 words
A hull as claimed in claim 6, wherein said hull includes more than one layer, each said layer being comprised of alternating layers of chopped fiber glass rovings and epoxy and woven fiber glass mats.
Claim 11
Dependent Claim
33 words
A boat including a hull as claimed in claim 3, wherein said boat includes an electrical system, said electrical system being coupled to said mesh screen to fix same to a reference potential.
Claim 12
Dependent Claim
36 words
In a boat including a hull as claimed in claim 3, wherein the said boat includes a sonic generator, and said sonic generator is disposed proximate to said mesh screen to apply thereto a sonic signal.
Claim 13
Dependent Claim
34 words
A hull as claimed in claim 1, wherein said plastic material is fiberglass and includes a jell coat layer defining the outermost portion of the interstices of the outer surface of said hull construction.
Claim 14
Dependent Claim
39 words
A hull as claimed in claim 1, wherein said at least one fabricated layer includes reinforced chopped rovings such as fiberglass and setting plastics such as epoxy, said rovings and epoxy filling in the interstices defined by said metal.
Claim 15
Dependent Claim
39 words
A hull as claimed in claim 11, said outer surface layer of said hull construction adjacent said metal and jell coat includes a woven fiberglass mat covering said entire surface formed by said copper alloy and chopped fiberglass rovings.
Claim 16
Dependent Claim
33 words
A hull as claimed in claim 13, wherein said hull includes more than one layer, each said layer being comprised of alternating layers of chopped fiberglass rovings and epoxy and woven fiberglass mats.
Claim 17
Dependent Claim
32 words
A boat including a hull as claimed in claim 1, wherein said boat includes an electrical system, said electrical system being coupled to said metal to fix same to a reference potential.
Claim 18
Dependent Claim
33 words
A boat including a hull as claimed in claim 1, wherein said boat includes a sonic generator, and said sonic generator is disposed proximate to said metal to apply thereto a sonic signal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |