Patent US4407772A successfully refreshed from Google Patents.
US4407772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a contoured disk wheel
Assignee: Bridgestone Firestone Inc
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Filing: 1982-05-28
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Granted: 1983-10-04
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Expires: 2002-05-28
Abstract
Abstract A method is disclosed for forming a contoured disk wheel by placing a maturated fiber-reinforced resin cylinder between male mold members and encircling mold members, closing the mold members about the cylinder causing it to flow axially and radially, and curing it.
Inventors
- 👤 Ralph A. Maglio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:02
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0032; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/34; B29C70/347; B29K; B29K2105/00; B29K2105/06; B29K2105/12; B29K2105/24; B29K2105/243; B29L; B29L2031/00; B29L2031/32; B29L2031/322
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
140 words
Method for making a contoured disk wheel comprising: (a) spirally winding a sheet containing thermosetting resin and randomly oriented fibers into a substantially cylindrical body, and partially curing said resin; (b) disposing said body in end-abutting position on an elevated, substantially flat end portion of a first male mold member; (c) moving cooperating mold members together about said first male mold member and about a lower portion of said body, said male mold member and said cooperating mold members defining at least part of a mold cavity therebetween; (d) heating said sheet and axially moving a second male mold member toward said first male mold member, causing the partially cured resin to flow radially outwardly and axially into the said mold cavity around the periphery of said first mold member; and (e) curing said resin to form said disk wheel.
Claim 2
Dependent Claim
140 words
Method for making a contoured disk wheel comprising: (a) spirally winding a sheet containing thermosetting resin and randomly oriented fibers into a substantially cylindrical body, and partially curing said resin; (b) disposing said body in end-abutting position on an elevated, substantially flat end portion of a first male mold member; (c) moving cooperating mold members together about said first male mold member and about a lower portion of said body, said male mold member and said cooperating mold members defining at least part of a mold cavity therebetween; (d) heating said sheet and axially moving a second male mold member toward said first male mold member, causing the partially cured resin to flow radially outwardly and axially into the said mold cavity around the periphery of said first mold member; and (e) curing said resin to form said disk wheel.
Claim 3
Dependent Claim
20 words
The method of claim 1, wherein said second mold member causes a major resin flow first in a radial direction.
Claim 4
Dependent Claim
25 words
The method of claim 1, wherein the diameter of said cylindrical body is in the range of 50-60% of the planar diameter of the wheel.
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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) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |