Patent EP0232968B1 successfully refreshed from Google Patents.
US4739770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush device
Assignee: HP Inc
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Filing: 1986-05-21
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Granted: 1988-04-26
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Expires: 2006-05-21
Abstract
Abstract A flush device in which a first passageway extends between a first opening in a body and a first port in said body, a second passageway extends between a second opening in said body and a second port in said body, a capillary pathway provides communication between said first and second passageways, a retainer for compressing a resilient pad into a sealing relationship with said ports and a projection is provided for pulling the pad away from the ports so as to open the seal between the pad and the ports and permit a large flow of fluid between said first and second passageways.
Inventors
- 👤 Thomas P. Stephens
- 👤 Robert G. Graves
- 👤 Albert K. Bond
- 👤 David A. Bristol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:54
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/0215; A61M; A61M39/00; A61M39/22; A61M39/225
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
136 words
A flush device comprising a body, having an outer surface means defining first and second openings in said body, means defining first and second ports in said body, means defining a first passageway between said first opening and said first port, means defining a second passageway having inner and outer ends, said second passageway extending between said second opening and said second port, said second port being at the inner end of said second passageway, means for defining a third passageway communicating between said first and second passageways, a resilient pad, means for compressing said pad against said outer surface so as to form a seal therewith between said ports, and means by which said pad can be pulled away from said ports so as to open the seal between said pad and said outer surface.
Claim 2
Dependent Claim
136 words
A flush device comprising a body, having an outer surface means defining first and second openings in said body, means defining first and second ports in said body, means defining a first passageway between said first opening and said first port, means defining a second passageway having inner and outer ends, said second passageway extending between said second opening and said second port, said second port being at the inner end of said second passageway, means for defining a third passageway communicating between said first and second passageways, a resilient pad, means for compressing said pad against said outer surface so as to form a seal therewith between said ports, and means by which said pad can be pulled away from said ports so as to open the seal between said pad and said outer surface.
Claim 3
Dependent Claim
30 words
A flush device as set forth in claim 1 wherein said means defining said third passageway is a tube within said body, said tube having a capillary passageway contained therein.
Claim 4
Dependent Claim
35 words
A flush device as set forth in claim 2 having means defining a fourth passageway in said body communicating between said first and second passageways, and wherein said tube is mounted within said fourth passageway.
Claim 5
Dependent Claim
63 words
A flush device as set forth in claim 3 having means defining an enlarged section in said fourth passageway, and means defining an aperture in said body that communicates with said enlarged section whereby adhesive means can be forced into said enlarged section for holding said capillary tube in place and for providing a seal between said capillary tube and said fourth passageway.
Claim 6
Dependent Claim
32 words
A flush device as set forth in claim 3 wherein the end of said tube adjoining one of said first and second passageways is flush with the end of said, one passageway.
Claim 7
Dependent Claim
40 words
A flush device as set forth in claim 1 wherein said means defining said third passageway includes means defining a groove in the outer surface of said body that extends between said first and second ports said groove having edges.
Claim 8
Dependent Claim
17 words
A flush device as set forth in claim 6 wherein the edges of the groove are raised.
Claim 9
Dependent Claim
42 words
A flush device as set forth in claim 1 wherein said means defining said third passageway is contained within said body and wherein said latter means has a surface at the inner end of said second passageway that is free from pockets.
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) | 1991-04-26 | 1991-10-26 | 1992-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-26 | 1995-10-26 | 1996-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-26 | 1999-10-26 | 2000-04-26 | $7700.00 | Window Closed / Lapsed |