Patent US3663335A successfully refreshed from Google Patents.
US3663335A
Expired / Lapsed
US
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Insulated heat packs
Assignee: SMITH FIBERGLASS PRODUCTS Inc A DE CORP
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Filing: 1969-11-20
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Granted: 1972-05-16
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Expires: 1989-11-20
Abstract
Abstract A heat source assembly for use in adhesively joining together thermosetting resin impregnated members. A heat source consisting of a combustible material is enclosed in a non-combustible insulation which moderates the flow of heat to the joint area and also prevents rapid cooling to maintain uniform heating temperatures. The aforementioned abstract is neither intended to define the invention of the application which, of course, is measured by the claims, nor is it intended to be limiting as to the scope of the invention in any way.
Inventors
- 👤 Richard E Sheedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:19
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/02; B; B23; B23K; B23K1/00; B23K1/0006; B29; B29C; B29C65/00; B29C65/02; B29C65/022; B29C65/18; B29C65/24; B29C65/28; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29C66/70; B29C66/73; B29C66/739; B29C66/7394; B29C66/73941; B29C66/90; B29C66/91; B29C66/914; B29C66/9141; B29C66/91411; B29C66/91441; B29C66/91443; B29C66/919; B29C66/9192; B29C66/91951; F24; F24V; F24V30/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
106 words
A heat pack for use in adhesively joining together a pair of contiguous members employing a thermocuring resin adhesive interposed between the members, comprising: a. an elongated combustible fuel element; b. a non-combustible insulating mass surrounding said fuel element whereby at least a portion of the insulating mass is interposed between the said fuel element and at least the nearer one of the contiguous members; c. a flexible cover member surrounding said non-combustible mass, at least a portion of said cover member being formed of a flexible metal heat conductive sheet; and d. means to clamp said heat pack to the members to be adhesively joined.
Claim 2
Dependent Claim
106 words
A heat pack for use in adhesively joining together a pair of contiguous members employing a thermocuring resin adhesive interposed between the members, comprising: a. an elongated combustible fuel element; b. a non-combustible insulating mass surrounding said fuel element whereby at least a portion of the insulating mass is interposed between the said fuel element and at least the nearer one of the contiguous members; c. a flexible cover member surrounding said non-combustible mass, at least a portion of said cover member being formed of a flexible metal heat conductive sheet; and d. means to clamp said heat pack to the members to be adhesively joined.
Claim 3
Dependent Claim
16 words
The heat pack of claim 1 including a metallic foil wrapper surrounding the said insulating mass.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |