US4284135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for mutually fixing plate elements of plate heat exchangers or plate filters
Assignee: REHEAT AB
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Filing: 1980-02-22
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Granted: 1981-08-18
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Expires: 2000-02-22
Abstract
Abstract The gasket grooves of plate elements are disposed in an intermediate plane. The gasket then will abut the distance members of both adjacent plate elements in its own gasket groove and parts of the respective distance members. The plate elements are fixed relative to each other when the plate elements are clamped together. The gaskets act as guide strips.
Inventors
- 👤 Christer Almqvist
- 👤 Lars Lindahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:29
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/12; B01D25/21; B01D25/215; F; F28; F28F; F28F3/00; F28F3/08; F28F3/10; B01D2201/00; B01D2201/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A plate element at plate heat exchanger or plate filter assembled of several such plate elements, each plate element provided with distance members embossed in the plate substantially in the form of corrugations, which distance members of two adjacent plates intersect one another, characterized in that the gasket groove known per se for receiving a gasket located between the plates and extending about the plate is embossed with its bottom extending in a plane located approximately centrally between the tops of two adjacent distance members directed to opposed sides of the plate, and that each distance member terminating in the gasket groove shows toward the same a surface, the height of which corresponds approximately to half the total thickness of the plate, which surfaces at the mounting of the plates form supporting surfaces in lateral direction for the gasket.
Claim 2
Dependent Claim
139 words
A plate element at plate heat exchanger or plate filter assembled of several such plate elements, each plate element provided with distance members embossed in the plate substantially in the form of corrugations, which distance members of two adjacent plates intersect one another, characterized in that the gasket groove known per se for receiving a gasket located between the plates and extending about the plate is embossed with its bottom extending in a plane located approximately centrally between the tops of two adjacent distance members directed to opposed sides of the plate, and that each distance member terminating in the gasket groove shows toward the same a surface, the height of which corresponds approximately to half the total thickness of the plate, which surfaces at the mounting of the plates form supporting surfaces in lateral direction for the gasket.
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) | 1984-08-17 | 1985-02-16 | 1985-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-17 | 1989-02-16 | 1989-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-17 | 1993-02-16 | 1993-08-18 | $7700.00 | Window Closed / Lapsed |