Patent US3782889A successfully refreshed from Google Patents.
US3782889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for rapid curing of resinous materials
Assignee: MASSACHUSETTS BUSINESS DEVELOPMENT Corp
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Filing: 1971-09-09
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Granted: 1974-01-01
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Expires: 1991-09-09
Abstract
Abstract Apparatus providing in sequence a heat source for directing a flow of air under pressure at a temperature in the range of 250* to 800*C, a blower to direct a flow of cool air and a drive mechanism to produce motion between the heat source and blower relative to a resinous material to be cured at a speed whereby the material reaches a temperature of at least 170*C within a time interval of less than one minute and is then cooled.
Inventors
- 👤 C Panico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:35
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/62; B29C53/64; B29B; B29B13/00; B29B13/02; B29B13/021; B29C53/581; B29C53/80; B29C53/84; B29C53/845; B29L; B29L2009/00; B29L2023/00; B29L2023/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
97 words
Apparatus for curing polymerizeable resins impregnating a fibrous web comprising: a. Means to heat gas to a temperature in excess of 500*C; b. means to drive said gas while so heated in a directional manner; c. means to provide relative motion between said web and said means to drive said gas whereby said gas is directed against said web heating said web and said polymerizeable resins to a temperature of at least 170*C. over a time interval of less than one minute; and, d. means to reduce said temperature before deterioration of said web and said resins.
Claim 2
Dependent Claim
97 words
Apparatus for curing polymerizeable resins impregnating a fibrous web comprising: a. Means to heat gas to a temperature in excess of 500*C; b. means to drive said gas while so heated in a directional manner; c. means to provide relative motion between said web and said means to drive said gas whereby said gas is directed against said web heating said web and said polymerizeable resins to a temperature of at least 170*C. over a time interval of less than one minute; and, d. means to reduce said temperature before deterioration of said web and said resins.
Claim 3
Dependent Claim
21 words
Apparatus for curing polymerizeable resins according to claim 1 further comprising means to irradiate said web with high intensity wave energy.
Claim 4
Dependent Claim
26 words
Apparatus for curing polymerizeable resins according to claim 2 in which said wave energy is electromagnetic wave energy including at least part of the ultraviolet spectrum.
Claim 5
Dependent Claim
31 words
Apparatus for curing polymerizeable resins according to claim 1 in which said means to provide relative motion is a mandrel for forming said web into the shape of an end product.
Claim 6
Dependent Claim
36 words
Apparatus for curing polymerizeable resins according to claim 4 in which said means to provide relative motion comprises means to rotate said mandrel and means to reciprocate said mandrel so as to form a continuous product.
Claim 7
Dependent Claim
30 words
Apparatus for curing polymerizeable resins according to claim 1 further comprising additional means to drive cooling gas against said web after said heating so as to rapidly cool said web.
Claim 8
Dependent Claim
37 words
Apparatus for curing polymerizeable resins according to claim 1 wherein said means to provide relative motion comprises means to transport said web past said means to drive said gas within a time interval less than one minute.
Claim 9
Dependent Claim
35 words
Apparatus for curing polymerizeable resins according to claim 7 wherein said means to transport imparts a motion to said web relative to said means to drive said gas of at least twenty feet per minute.
Claim 10
Dependent Claim
18 words
Apparatus for curing polymerizeable resins according to claim 4 further comprising an infrared reflective surface on said mandrel.
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |