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US3661060A
Expired / Lapsed
US
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Diaphragms for high pressure compressors and pumps
Assignee: Flowserve Corp
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Filing: 1970-08-05
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Granted: 1972-05-09
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Expires: 1990-08-05
Abstract
Abstract Diaphragms are provided for high pressure compressors and pumps, the diaphragms having heat insulation properties, extended life and apparatus capable of detecting diaphragm leaks associated therewith.
Inventors
- 👤 John C Bowen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:42
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0081; F04B43/009
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
59 words
In combination with metal mounting heads having a diaphragm chamber therebetween, a diaphragm assembly carried by said heads in said chamber, said diaphragm assembly comprising a plurality of metal diaphragm plates, and a plurality of spaced heat insulating and fretting corrosion deterring films interposed between said metal diaphragm plates and said mounting heads at the periphery of said plates.
Claim 2
Dependent Claim
59 words
In combination with metal mounting heads having a diaphragm chamber therebetween, a diaphragm assembly carried by said heads in said chamber, said diaphragm assembly comprising a plurality of metal diaphragm plates, and a plurality of spaced heat insulating and fretting corrosion deterring films interposed between said metal diaphragm plates and said mounting heads at the periphery of said plates.
Claim 3
Dependent Claim
25 words
The combination as defined in claim 1 in which a central plate of reduced diameter is interposed between a pair of said metal diaphragm plates.
Claim 4
Dependent Claim
32 words
The combination as defined in claim 2 in which said central plate is circular and is provided with at least one fluid delivery passageway communicating with the periphery of said central plate.
Claim 5
Dependent Claim
17 words
The combination as defined in claim 3 in which said fluid delivery passage is a radial slot.
Claim 6
Dependent Claim
17 words
The combination as defined in claim 3 in which said fluid delivery passage is a radial groove.
Claim 7
Dependent Claim
16 words
The combination as defined in claim 3 in which said central plate is of synthetic plastic.
Claim 8
Dependent Claim
15 words
The combination as defined in claim 3 in which said central plate is of metal.
Claim 9
Dependent Claim
23 words
The combination as defined in claim 3 in which means are associated with said diaphragm assembly for detecting fluid leakage through said passageway.
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |