US3668051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compound-curved structure
Assignee: WILLIAM H SEEMANN
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Filing: 1969-05-29
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Granted: 1972-06-06
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Expires: 1989-05-29
Abstract
Abstract A method of constructing boat hulls by fiberglass or ferrocement techniques utilizing a surface defining base material of a pliable sheeting material of, for example, a loosely woven fabric or elastic mesh reinforced with springy rods of, for example, fiberglass or steel; the base material is attached to a skeleton framework and readily and easily assumes and forms the compoundcurved surface of the hull, and a resin or concrete is subsequently added and allowed to harden.
Inventors
- 👤 William H Seemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:27
CPC Classifications
B; B63; B63B; B63B5/00; B63B5/24; B63B5/14; B63B5/16; B63B73/00; B63B73/50; B63B73/70; B63B73/74; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24132; Y10T428/24744
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
32 words
The construction base material of claim 1 wherein said elongated elements are in the form of rods and are parallelly aligned with respect to each other when attached to said sheeting material.
Claim 2
Dependent Claim
23 words
The construction base material of claim 1 wherein said sheeting material is comprised of fibrous material interconnected together to form a pliable sheet.
Claim 3
Dependent Claim
20 words
The construction base material of claim 1 wherein said sheeting material is comprised of a continuous sheet of elastomeric material.
Claim 4
Dependent Claim
26 words
The construction base material of claim 1 wherein said sheeting material has a woven, mesh structure and said elongated elements are positioned within the mesh structure.
Claim 5
Dependent Claim
20 words
The construction base material of claim 1 wherein said elongated elements may also move laterally with respect to one another.
Claim 6
Dependent Claim
31 words
The construction base material of claim 1 wherein said elongated elements comprise a resinous material reinforced with a high strength fibrous material and said sheeting material comprises a woven fibrous material.
Claim 7
Dependent Claim
30 words
The construction base material of claim 7 wherein said resinous material is thermosetting, said fibrous material is made up of glass fibers and said woven fibers are also of glass.
Claim 8
Dependent Claim
65 words
The construction base material of claim 1 wherein there is to be added thereto within the interstices thereof a hardening agent, the material composition of said elongated elements and said flexible sheeting material being chemically and structurally coMpatible and forming a strong bond with the hardening agent, each structurally enhancing and reinforcing the other when the hardening agent is added to the construction base material.
Claim 9
Dependent Claim
31 words
The construction base material of claim 9 wherein the hardening agent is a thermosetting resinous material and wherein the material composition of said elongated elements includes a thermosetting resinous plastic material.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |