US4120352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for connecting exchanger tubes to perforated plates
Assignee: S E R A HUSSON D ETUDES ET REALISATIONS AERODYNAMIQUES Ste
•
Filing: 1976-12-06
•
Granted: 1978-10-17
•
Expires: 1996-12-06
Abstract
Abstract A device for sealingly connecting the end of a glass tube to the edge of a hole in a rigid plate including a resilient ring with a axial half-section in the shape of a flattened Z, said ring being made up of two cylindrical sleeves which partly enclose one another and are axially offset in relation to one another.
Inventors
- 👤 Jean Husson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:19
CPC Classifications
F; F28; F28F; F28F21/00; F28F21/006; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/492; Y10S285/00; Y10S285/918; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49373
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
158 words
In a device wherein n rings of resilient material connect in tight sealing relationship a bundle of n parallel tubes of inside diameter d and outside diameter D in a heat exchanger to the edges of n holes in a rigid plate, the improvement comprising the diameter t of the holes being substantially equal to D and the rings having in axial half-section the shape of a flattened Z and comprising a plurality of cylindrical sleeves party enclosing one another, each sleeve including a first sleeve of inside diameter d and outside diameter t whose ends are respectively sealingly received in a hole of the plate and in axial abutment with the end of a tube, and a second sleeve of inside diameter D whose ends are respectively in sealing contact with the exterior of a tube end and in abutment with the edge of a hole, the second sleeves of the rings bearing laterally against one another.
Claim 2
Dependent Claim
158 words
In a device wherein n rings of resilient material connect in tight sealing relationship a bundle of n parallel tubes of inside diameter d and outside diameter D in a heat exchanger to the edges of n holes in a rigid plate, the improvement comprising the diameter t of the holes being substantially equal to D and the rings having in axial half-section the shape of a flattened Z and comprising a plurality of cylindrical sleeves party enclosing one another, each sleeve including a first sleeve of inside diameter d and outside diameter t whose ends are respectively sealingly received in a hole of the plate and in axial abutment with the end of a tube, and a second sleeve of inside diameter D whose ends are respectively in sealing contact with the exterior of a tube end and in abutment with the edge of a hole, the second sleeves of the rings bearing laterally against one another.
Claim 3
Dependent Claim
35 words
A device as set forth in claim 1 wherein the second sleeves of the rings bear laterally against one another at four points, except for those disposed at the periphery of the bundle of tubes
Claim 4
Dependent Claim
20 words
A device as set forth in claim 1 wherein said second sleeves are thicker and longer than said first sleeves.
References Cited (Backward Citations)
US1235057A
Cited
US1271135A
Cited
US2013660A
Cited
US2394402A
Cited
US2816739A
Cited
US2839316A
Cited
DE1205564B
Cited
GB902508A
Cited
FR1275943A
Cited
US3391732A
Cited
US3559730A
Cited
US3749161A
Cited
CH535415A
Cited
FR2209088B1
Cited
US3953555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-16 | 1982-04-17 | 1982-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-16 | 1986-04-17 | 1986-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-16 | 1990-04-17 | 1990-10-17 | $7700.00 | Window Closed / Lapsed |