US3828811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve assembly
Assignee: Ethicon Inc
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Filing: 1973-05-31
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Granted: 1974-08-13
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Expires: 1993-05-31
Abstract
Abstract A valve assembly is provided for use in a sphygmomanometer and includes a housing provided with an elongated first air passageway and a second air passageway having one end thereof communicating with the first passageway and the second end thereof terminating at an exterior surface portion of the housing. A valve piece overlies the housing exterior surface and is mounted thereon for manual rotation through a predetermined sector, delimited by first and second positions of adjustment. Rotation of the valve piece is about an axis disposed transverse of the exterior surface portion. The valve piece is provided with a passageway which interconnects first and second surface portions. The valve piece first surface portion is in sliding sealing engagement with the housing surface portion. One of the engaging surface portions is provided with an elongated groove extending from the end of the passageway terminating at the one engaging surface portion. The cross-sectional size of the groove diminishes uniformly from a maximum at the passageway end to zero at the distal end of the groove. When the valve piece is at the first position of adjustment the housing second passageway and the valve piece passageway are aligned with one another. When the valve piece is at the second position of adjustment, the housing second passageway is closed off by the valve piece.
Inventors
- 👤 Z Natkanski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:29
CPC Classifications
F; F16; F16K; F16K37/00; A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/022; A61B5/0235; F16K3/00; F16K3/30; F16K3/34; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8275
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
346 words
A valve assembly for use in a sphygmomanometer to permit controlled release of pneumatic pressure accumulated within the sphygmomanometer, said assembly comprising a housing provided with a first air passageway in which a predetermined amount of pneumatic pressure is accumulated, said first air passageway being in communication with a pneumatically responsive pressure gauge, and a second air passageway having one end thereof communicating with said first passageway and a second end terminating at an exterior surface portion of said housing; a valve piece rotatably mounted on said housing surface portion for controlled manual adjustment through a predetermined sector about an axis disposed substantially transverse to said housing surface portion, said valve piece having first and second surface portions interconnected by a passageway offset from said axis, the end of the latter passageway terminating at the second surface portion being in continuous communication with the exterior of the sphygmomanometer, said valve piece first surface portion being in sliding, sealing engagement with said housing surface portion, one engaging surface portion being provided with an elongated arcuate groove extending from the passageway end formed in said surface portion, the center of curvature of said groove being coincident to said axis, the lateral and depth dimensions of said groove diminishing uniformly from a maximum at said passageway end to a minimum at the distal end of said groove, said valve piece, when in a first terminal position of adjustment, having the passageway thereof aligned with the end of the second passageway of said housing whereby maximum release occurs of the pneumatic pressure accumulated within the1housing first air passageway and, when in a second terminal position of adjustment, having said second passageway end closed off by said valve piece first surface portion, said groove being in simultaneous communication with the passageways of said engaging surface portions upon said valve piece assuming selected positions of adjustment intermediate said terminal positions thereby controlling the rate of release of the pneumatic pressure accumulated in the housing first air passageway; and means engaging said housing for retaining said valve piece on said housing surface portion.
Claim 2
Dependent Claim
346 words
A valve assembly for use in a sphygmomanometer to permit controlled release of pneumatic pressure accumulated within the sphygmomanometer, said assembly comprising a housing provided with a first air passageway in which a predetermined amount of pneumatic pressure is accumulated, said first air passageway being in communication with a pneumatically responsive pressure gauge, and a second air passageway having one end thereof communicating with said first passageway and a second end terminating at an exterior surface portion of said housing; a valve piece rotatably mounted on said housing surface portion for controlled manual adjustment through a predetermined sector about an axis disposed substantially transverse to said housing surface portion, said valve piece having first and second surface portions interconnected by a passageway offset from said axis, the end of the latter passageway terminating at the second surface portion being in continuous communication with the exterior of the sphygmomanometer, said valve piece first surface portion being in sliding, sealing engagement with said housing surface portion, one engaging surface portion being provided with an elongated arcuate groove extending from the passageway end formed in said surface portion, the center of curvature of said groove being coincident to said axis, the lateral and depth dimensions of said groove diminishing uniformly from a maximum at said passageway end to a minimum at the distal end of said groove, said valve piece, when in a first terminal position of adjustment, having the passageway thereof aligned with the end of the second passageway of said housing whereby maximum release occurs of the pneumatic pressure accumulated within the1housing first air passageway and, when in a second terminal position of adjustment, having said second passageway end closed off by said valve piece first surface portion, said groove being in simultaneous communication with the passageways of said engaging surface portions upon said valve piece assuming selected positions of adjustment intermediate said terminal positions thereby controlling the rate of release of the pneumatic pressure accumulated in the housing first air passageway; and means engaging said housing for retaining said valve piece on said housing surface portion.
Claim 3
Dependent Claim
101 words
The valve assembly of claim 1 wherein said valve piece is provided with an opening aligned with said valve piece axis; and said valve piece-retaining means includes an exposed outer section overlying in spaced relation said valve piece second surface portion, an inner section projecting from said outer section and slidably extending through said valve piece opening and being secured to said housing exterior surface portion, and biasing means interposed and resiliently engaging said outer section and said valve piece second surface portion and urging said valve piece first surface portion into sliding sealing engagement with said housing exterior surface portion.
Claim 4
Dependent Claim
62 words
The valve assembly of claim 2 wherein said valve piece second surface portion is provided with a first stop means spaced from the passageway of said valve piece; and said valve piece-retaining meaNs is provided with complemental second stop means, said first and second stop means cooperating with one another to restrict movement of said valve piece to within said predetermined sector.
Claim 5
Dependent Claim
22 words
The valve assembly of claim 2 wherein the second surface portion of said valve piece is provided with said elongated arcuate groove.
Claim 6
Dependent Claim
85 words
The valve assembly of claim 4 wherein the outer periphery of said valve piece second surface portion is provided with annularly spaced first indicia in partially encircling relation with respect to said valve piece axis, and the outer section of said valve piece-retaining means is provided with a complemental second indicia, the relative positions of said first and second indicia corresponding to the relative position of said valve piece passageway with respect to the second end of the second air passageway formed in said housing.
Claim 7
Dependent Claim
29 words
The valve assembly of claim 5 wherein the first indicia of said valve piece is disposed on a raised rim encircling the second surface portion of said valve piece.
Claim 8
Dependent Claim
28 words
The valve assembly of claim 1 wherein the exterior surface portion of said housing and the first surface portion of said valve piece are flat and substantially coincident.
Claim 9
Dependent Claim
209 words
A valve assembly for use in a sphygmomanometer comprising a housing provided with an elongated first air passageway, a second air passageway having one end thereof communicating with said first passageway and a second end thereof terminating at an exterior surface portion of said housing, and a third air passageway having one end thereof communicating with said first passageway and spaced from said second passageway; gauge means connected to the opposite end of said third air passageway, said gauge means including a movable element responsive to the air pressure within said first passageway; means adjustably mounted within said third passageway for dampening pulsating air flow therethrough; and manually adjustable valve means mounted on said housing exterior surface portion, said valve means including a valve piece having an inner surface portion is sliding, sealing engagement with the housing exterior surface portion, said valve piece being provided with a passageway connecting said inner surface with an outer surface, said valve piece being manually adjustable relative to the housing exterior surface portion between a first position wherein the passageway of said valve piece is aligned with said housing second passageway, and a second position wherein the end of the housing second passageway is closed off by said valve piece inner surface portion.
Claim 10
Dependent Claim
209 words
A valve assembly for use in a sphygmomanometer comprising a housing provided with an elongated first air passageway, a second air passageway having one end thereof communicating with said first passageway and a second end thereof terminating at an exterior surface portion of said housing, and a third air passageway having one end thereof communicating with said first passageway and spaced from said second passageway; gauge means connected to the opposite end of said third air passageway, said gauge means including a movable element responsive to the air pressure within said first passageway; means adjustably mounted within said third passageway for dampening pulsating air flow therethrough; and manually adjustable valve means mounted on said housing exterior surface portion, said valve means including a valve piece having an inner surface portion is sliding, sealing engagement with the housing exterior surface portion, said valve piece being provided with a passageway connecting said inner surface with an outer surface, said valve piece being manually adjustable relative to the housing exterior surface portion between a first position wherein the passageway of said valve piece is aligned with said housing second passageway, and a second position wherein the end of the housing second passageway is closed off by said valve piece inner surface portion.
Claim 11
Dependent Claim
47 words
The valve assembly of claim 8 wherein the means adjustably mounted within the housing third passageway includes an elongated rod, the exterior of which cooperates with the wall of said third passageway to form a restricted passage substantially smaller in cross-sectional size than said housing first passageway.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |