Patent US3561648A successfully refreshed from Google Patents.
US3561648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient integral bodies incorporating poppet-valves
Assignee: Individual
•
Filing: 1969-04-09
•
Granted: 1971-02-09
•
Expires: 1989-04-09
Abstract
Abstract The combination of a supporting surface having two ports, and an integral body which includes a recess-defining resilient portion secured against the surface to define therewith a chamber into which the two ports open. A poppet-valve integral with the body extends toward the surface and closes one port with mechanical interference, thereby to establish one pressure threshold above which fluid flows from one port to the other port, and a second pressure threshold above which fluid flows in the opposite direction.
Inventors
- 👤 Frederick Harold Humphrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:32
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/022
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
196 words
An integral body for use with a supporting surface through which two apertures open, the body comprising: a resilient portion defining a recess having sidewalls and a top wall, the resilient portion being adapted to be placed against the supporting surface such that the recess defines with the supporting surface a main chamber into which the two apertures open; and an integral poppet-valve extending from the top wall toward the supporting surface and being adapted to close one aperture with mechanical interference, the poppet-valve being centrally recessed to define a subchamber in communication with said one aperture and being outwardly flared where it contacts the supporting surface, thereby to provide a first pressure threshold above which fluid flows from said one aperture to the other aperture and a second pressure threshold above which fluid flows from said other aperture to said one aperture, said first pressure threshold being at least partly a function of the amount of said mechanical interference and at least partly a function of the area of the supporting surface within said subchamber, said second pressure threshold being at least partly a function of the area of the top wall surrounding the poppet-valve.
Claim 2
Dependent Claim
196 words
An integral body for use with a supporting surface through which two apertures open, the body comprising: a resilient portion defining a recess having sidewalls and a top wall, the resilient portion being adapted to be placed against the supporting surface such that the recess defines with the supporting surface a main chamber into which the two apertures open; and an integral poppet-valve extending from the top wall toward the supporting surface and being adapted to close one aperture with mechanical interference, the poppet-valve being centrally recessed to define a subchamber in communication with said one aperture and being outwardly flared where it contacts the supporting surface, thereby to provide a first pressure threshold above which fluid flows from said one aperture to the other aperture and a second pressure threshold above which fluid flows from said other aperture to said one aperture, said first pressure threshold being at least partly a function of the amount of said mechanical interference and at least partly a function of the area of the supporting surface within said subchamber, said second pressure threshold being at least partly a function of the area of the top wall surrounding the poppet-valve.
Claim 3
Dependent Claim
193 words
The combination of a supporting surface through which two apertures open, and an integral body, the integral body comprising: a resilient portion defining a recess having sidewalls and a top wall, the resilient portion being secured against the supporting surface such that the recess defines with the supporting surface a main chamber into which the two apertures open; an integral poppet-valve extending from the top wall toward the supporting surface and adapted to close one aperture with mechanical interference, the poppet-valve being centrally recessed to define a subchamber in communication with said one aperture and being outwardly flared where it contacts the supporting surface, thereby to provide a first pressure threshold above which fluid flows from said one aperture to the other aperture and a second pressure threshold above which fluid flows from said other aperture to said one aperture, said first pressure threshold being at least partly a function of the amount of said mechanical interference and at least partly a function of the area of the supporting surface within said subchamber, said second pressure threshold being at least partly a function of the area of the top wall surrounding the poppet-valve.
Claim 4
Dependent Claim
193 words
The combination of a supporting surface through which two apertures open, and an integral body, the integral body comprising: a resilient portion defining a recess having sidewalls and a top wall, the resilient portion being secured against the supporting surface such that the recess defines with the supporting surface a main chamber into which the two apertures open; an integral poppet-valve extending from the top wall toward the supporting surface and adapted to close one aperture with mechanical interference, the poppet-valve being centrally recessed to define a subchamber in communication with said one aperture and being outwardly flared where it contacts the supporting surface, thereby to provide a first pressure threshold above which fluid flows from said one aperture to the other aperture and a second pressure threshold above which fluid flows from said other aperture to said one aperture, said first pressure threshold being at least partly a function of the amount of said mechanical interference and at least partly a function of the area of the supporting surface within said subchamber, said second pressure threshold being at least partly a function of the area of the top wall surrounding the poppet-valve.
Claim 5
Dependent Claim
110 words
An integral body as claiMed in claim 1, in which an integral partition extends from the top wall of the recess to terminate in an edge adapted to rest resiliently against said supporting surface at a location between said two apertures, thereby to divide the main chamber into a first compartment containing said poppet-valve and said one aperture and a second compartment containing said other aperture, said partition being adapted to define an acute angle with the supporting surface in the second compartment adjacent said edge, the top wall within said first compartment having a portion which is resiliently deformable whereby the volume of said first compartment can be changed.
Claim 6
Dependent Claim
110 words
An integral body as claimed in claim 3, in which a further integral partition extends from the top wall of the recess to terminate in an edge adapted to rest resiliently against said supporting surface at a location between said poppet-valve and said resiliently deformable portion of the top wall, thereby to divide the first compartment into a first subcompartment defined in part by said resiliently deformable portion of the top wall, and a second subcompartment containing said poppet-valve and said one aperture, said further integral partition being adapted to define an acute angle with the supporting surface in the first subcompartment adjacent the edge of the further integral partition.
Claim 7
Dependent Claim
55 words
An integral body as claimed in claim 1, in which the poppet-valve is closer to one sidewall of the recess than to the opposite sidewall, and in which the part of the poppet-valve closest to said one sidewall has less mechanical interference with the supporting surface than has the part closest to said opposite sidewall.
Claim 8
Dependent Claim
101 words
The combination claimed in claim 2, in which an integral partition extends from the top wall of the recess to terminate in an edge adapted to rest resiliently against said supporting surface at a location between said two apertures, thereby to divide the main chamber into a first compartment containing said poppet-valve and said one aperture and a second compartment containing said other aperture, said partition defining an acute angle with the supporting surface in the second compartment adjacent said edge, the top wall within said first compartment having a portion which is resiliently deformable whereby the volume of said first
Claim 9
Dependent Claim
108 words
The combination claimed in claim 6, in which a further integral partition extends from the top wall of the recess to terminate in an edge adapted to rest resiliently against said supporting surface at a location between said poppet-valve and said resiliently deformable portion of the top wall, thereby to divide the first compartment into a first subcompartment defined in part by said resiliently deformable portion of the top wall, and a second subcompartment containing said poppet-valve and said one aperture, said further integral partition being adapted to define an acute angle with the supporting surface in the first subcompartment adjacent the edge of the further integral partition.
Claim 10
Dependent Claim
53 words
The combination claimed in claim 2, in which the poppet-valve is closer to one sidewall of the recess than to the opposite sidewall, and in which the part of the poppet-valve closest to said one sidewall has less mechanical interference with the supporting surface than has the part closest to said opposite sidewall.
Claim 11
Dependent Claim
36 words
An integral body as claimed in claim 1, in which the integral body is made of a material chosen from the group: plasticized PVC, ethyl vinyl acetate, styrene-butadiene rubber, butyl rubber, natural rubber, and silicone rubber.
Claim 12
Dependent Claim
36 words
An integral body as claimed in claim 3, in which the integral body is made of a material chosen from the group: plasticized PVC, ethyl vinyl acetate, styrene-butadiene rubber, butyl rubber, natural rubber, and silicone rubber.
Claim 13
Dependent Claim
34 words
The combination claimed in claim 2, in which the integral body is made of a material chosen from the group: plasticized PVC, ethyl vinyl acetate, styrene-butadiene rubber, butyl rubber, natural rubber, anD silicone rubber.
Claim 14
Dependent Claim
34 words
The combination claimed in claim 6, in which the integral body is made of a material chosen from the group: plasticized PVC, ethyl vinyl acetate, styrene-butadiene rubber, butyl rubber, natural rubber, and silicone rubber.
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |