US3633660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic bonding of heat-exchanger core-unitsto header-plates
Assignee: Young Radiator Co
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Filing: 1970-11-16
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Granted: 1972-01-11
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Expires: 1990-11-16
Abstract
Abstract The essential concept of this invention involves the use of a silicone substance, with ''''dish-type'''' headers for heat exchanger core units, for bonding the battery of tubes to the header plates so as to inhere a factor of flexibility when such heat exchangers are used with equipment that would subject the heat exchangers to the possibility of an excessive degree of vibration and some degree of expansion and contraction of the tubes.
Inventors
- 👤 Fred M Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:28
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/04; F28F9/16; F28F9/162; F28F21/00; F28F21/06; F28F21/067; F28F2255/00; F28F2255/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49373
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A heat exchanger core unit as set forth in claim 1 wherein the plastic substance is in the nature of silicone rubber.
Claim 2
Dependent Claim
20 words
A heat exchanger core unit as set forth in claim 2 wherein the tubes are of elongated contour transversely thereof.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |