Patent US4473208A successfully refreshed from Google Patents.
US4473208A
Expired / Lapsed
US
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Apparatus for making helmets
Assignee: Individual
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Filing: 1982-05-24
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Granted: 1984-09-25
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Expires: 2002-05-24
Abstract
Abstract A mold for molding textile layers and resin to make helmets having a cavity mold member and a cooperating core member. The core member having an expansible elastic membrane thereabout and having a peripheral groove for securing reinforcing layers to the core.
Inventors
- 👤 Pier L. Nava
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:56
CPC Classifications
A; A42; A42C; A42C2/00; B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/42; B29C70/44; B29C43/00; B29C43/02; B29C43/10; B29C43/12; B29L; B29L2022/00; B29L2031/00; B29L2031/48; B29L2031/4807; B29L2031/4814; B29L2031/4821
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
An apparatus for manufacturing reinforced resin products comprising a mold including a unitary male mold member having engagable with a female mold member means for securing of at least a portion of said product inside of the mold and an elastically deformable member attached to said male mold member in such a manner that a pressurized fluid can be injected between said male mold member and said deformable member said male mold member having a peripheral groove adjacent at least said engagable means for attachment of at least a portion of the reinforcement of the product and the end of the elastically deformable member.
Claim 2
Independent Claim
104 words
An apparatus for manufacturing reinforced resin products comprising a mold including a unitary male mold member having engagable with a female mold member means for securing of at least a portion of said product inside of the mold and an elastically deformable member attached to said male mold member in such a manner that a pressurized fluid can be injected between said male mold member and said deformable member said male mold member having a peripheral groove adjacent at least said engagable means for attachment of at least a portion of the reinforcement of the product and the end of the elastically deformable member.
Claim 3
Dependent Claim
48 words
Apparatus according to claim 1 wherein a peripheral shoulder and corresponding projecting part are provided in an area of engagement between the male and female portion of the mold for securing of at least a portion of the reinforcement of said product during the manufacturing of said product.
Claim 4
Dependent Claim
22 words
Apparatus according to claim 1 wherein said means engageable with said female mold is a flange integral with said male mold member.
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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) | 1987-09-25 | 1988-03-26 | 1988-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-25 | 1992-03-26 | 1992-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-25 | 1996-03-26 | 1996-09-25 | $7700.00 | Window Closed / Lapsed |