Heat exchanger plates
Abstract
Abstract The heat exchanger plates include at least one plate having on one face of its heat transferring part a first group of ridges extending in parallel spaced relation to each other and pressed upward from the plane of the plate, this face also having a first group of grooves extending in parallel spaced relation to each other at an angle to the ridges and depressed from said plate; and the other face has second groups of ridges and grooves formed by the grooves and ridges, respectively, of the first groups. Each of these faces has its ridges substantially abutting an opposing plate so as to define therewith a set of channels between its ridges, each channel extending across a plurality of the grooves in such face. The two sets of channels provide a low resistance to flow of the respective heat exchanging media, while the ridges provide effective spacing means for preventing deformation of opposing plates under the pressure difference between such media.
Inventors
- 👤 J Andersson
- 👤 N Stadmark
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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 |