US3812882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Restrictor valve
Assignee: Individual
•
Filing: 1973-01-02
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Granted: 1974-05-28
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Expires: 1993-01-02
Abstract
Abstract In a restrictor valve housing, having a flow passageway, a pair of plates having aligned orifices intersect the flow passageway within the housing and define an intermediate portion of the flow passageway. A central disk, interposed between the pair of plates, is provided with an opening mating and mismating with the axis of the flow passageway by axial rotation of the disk. An operating ring, secured to the periphery of the central disk, projects outwardly of a portion of the outer limit of the housing permitting manual rotation of the central disk. Indicia, scored on the operating ring, provides visual indication of the position of the central disk opening with respect to the orifices in the pair of plates.
Inventors
- 👤 J Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:17
CPC Classifications
F; F16; F16K; F16K37/00; F16K37/0008; F16K37/0016; F16K3/00; F16K3/02; F16K3/04; F16K3/06; F16K3/08; F16K3/085; F16K3/30; F16K3/32; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8275; Y10T137/8292; Y10T137/8309
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
228 words
A restrictor valve, comprising: a valve body having a flow passageway including an inlet leading to said passageway and an outlet leading from said passageway, said body having counterbores intersecting and spanning the passageway and having a groove in its periphery surrounding the counterbores; a pair of stationary plates disposed within the counterbores in parallel spaced-apart relation, each said plate having an orifice coaxially aligned with the passageway; a rotatable disk interposed between said plates, said disk having an orifice movable into and out of registration with the orifices of said plates for controlling the flow of fluid through the passageway, said rotatable disk having end faces respectively contiguously contacting the respective said plate, each said end face having a flow restricting inclined groove having a length at least equal to the diameter of the disk orifice formed therein communicating, at one end with the orifice in said disk and terminating, at its other end, in the plane of the respective end face for changing the direction of a stream moving through the passageway when said rotatable disk orifice is out of registration with the orifices in said plates; and, an operating ring secured to the periphery of said disk within the body groove for maintaining said disk concentric with said plates, said ring projecting outwardly beyond a peripheral portion of said body for manually rotating said disk.
Claim 2
Dependent Claim
228 words
A restrictor valve, comprising: a valve body having a flow passageway including an inlet leading to said passageway and an outlet leading from said passageway, said body having counterbores intersecting and spanning the passageway and having a groove in its periphery surrounding the counterbores; a pair of stationary plates disposed within the counterbores in parallel spaced-apart relation, each said plate having an orifice coaxially aligned with the passageway; a rotatable disk interposed between said plates, said disk having an orifice movable into and out of registration with the orifices of said plates for controlling the flow of fluid through the passageway, said rotatable disk having end faces respectively contiguously contacting the respective said plate, each said end face having a flow restricting inclined groove having a length at least equal to the diameter of the disk orifice formed therein communicating, at one end with the orifice in said disk and terminating, at its other end, in the plane of the respective end face for changing the direction of a stream moving through the passageway when said rotatable disk orifice is out of registration with the orifices in said plates; and, an operating ring secured to the periphery of said disk within the body groove for maintaining said disk concentric with said plates, said ring projecting outwardly beyond a peripheral portion of said body for manually rotating said disk.
Claim 3
Dependent Claim
34 words
The restrictor valve according to claim 1 in which: said operating ring is provided with a plurality of radially spaced sockets open to its periphery; and, handle means engageable with the operating ring sockets.
Claim 4
Dependent Claim
47 words
The restrictor valve according to claim 1 in which the inclined grooves in said end faces are disposed in opposite alignment; and are formed on a radius common to the radial spacing between the axis of said disk and the axis of the orifice in said disk.
Claim 5
Dependent Claim
32 words
The restrictor valve according to claim 3 and further including: registration means visually indicating the relative position of the inclined grooves and the orifice in said disk with respect to the passageway.
Claim 6
Dependent Claim
30 words
The restrictor valve according to claim 1 in which: the orifice in each said stationary plate is characterized by a truncated conical surface diverging in a direction opposite said disk.
Claim 7
Dependent Claim
38 words
The restrictor valve according to claim 5 in which: the diverging orifice forming surface of each stationary plate terminates, adjacent its greater diameter, in an arcuate surface merging with a plane normal to the axis of the orifice.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |