US3598505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bellows pump
Assignee: United States Department of the Navy
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Filing: 1969-10-24
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Granted: 1971-08-10
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Expires: 1989-10-24
Abstract
Abstract This invention relates to a bellows-type pump connected to a cable and lowered into surrounding waters for operation as the cable is moved up and down due to wave action or mechanically. A plate secured relative to the bellows is constrained against movement by the water thereby compressing and releasing the bellows from compression to provide pumping action.
Inventors
- 👤 Michael L Greene
- 👤 Joseph R Jadamec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:05
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/02; F04B43/00; F04B43/08; F04B43/086
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
165 words
A pump unit operative to pump a fluid within which the pump unit is surrounded; which comprises, a frame, said frame including upper and lower narrow plates with standoff bolts secured between said narrow plates to secure said narrow plates in place, at least one pair of oppositely disposed pump elements secured in axial alignment within said frame with their axis normal to said upper and lower narrow plates, a one-way inlet valve and a one-way outlet valve in each of said pump elements to permit fluid flow into and out of said pump elements, a flat plate means secured between said pump elements normal to their axis, said plate means having a large flat surface area compared with the area of said pump element secured to said flat plate, said flat plate extending outwardly of said frame and operative for movement along said standoff bolts relative to said upper and lower narrow frame plates in order to provide pumping action of said pump elements.
Claim 2
Dependent Claim
165 words
A pump unit operative to pump a fluid within which the pump unit is surrounded; which comprises, a frame, said frame including upper and lower narrow plates with standoff bolts secured between said narrow plates to secure said narrow plates in place, at least one pair of oppositely disposed pump elements secured in axial alignment within said frame with their axis normal to said upper and lower narrow plates, a one-way inlet valve and a one-way outlet valve in each of said pump elements to permit fluid flow into and out of said pump elements, a flat plate means secured between said pump elements normal to their axis, said plate means having a large flat surface area compared with the area of said pump element secured to said flat plate, said flat plate extending outwardly of said frame and operative for movement along said standoff bolts relative to said upper and lower narrow frame plates in order to provide pumping action of said pump elements.
Claim 3
Dependent Claim
16 words
A pump unit as claimed in claim 1, wherein each of said pump elements are bellows.
Claim 4
Dependent Claim
19 words
A pump unit as claimed in claim 1; which includes, means for securing said pump unit onto a cable.
Claim 5
Dependent Claim
38 words
A pump unit as claimed in claim 1; wherein: one pump element of each pair is secured to said upper plate and the other pump element of each pair of pump elements is secured to said lower plate.
Claim 6
Dependent Claim
16 words
A pump unit as claimed in claim 4, wherein, each of said pump elements are bellows.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |