US3608584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control device
Assignee: Individual
•
Filing: 1969-02-19
•
Granted: 1971-09-28
•
Expires: 1989-02-19
Abstract
Abstract A valve having a reciprocal plunger or piston for providing alternate open and closed positions of the valve. The piston is slidably disposed within a housing having opposed inlet and outlet ports and may be moved in one direction for opening the valve to permit the flow of fluid therethrough. Movement of the piston in an opposite direction provides a first closed position of the valve wherein all flow through the valve is interrupted and there is no loss of fluid through the valve. Further movement of the piston in the closing direction provides a second closed position wherein flow of fluid through the valve is precluded and fluid trapped in the line or valve housing may be drained therefrom.
Inventors
- 👤 Charles W Vaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:08
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/22; F16K3/24; F16K3/26; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86678
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
159 words
A fluid flow control device comprising a housing having an internal bore, inlet and outlet passageway means provided in communication with the bore, plunger means reciprocally disposed within the bore, fluid passageway means provided in the plunger for directing fluid therethrough, means limiting the movement of the plunger within the bore in a first direction to provide an open position therefor whereby fluid may flow freely between the inlet and outlet passageways, means cooperating between the housing and plunger to provide a second position of the plunger within the bore fully closing the valve whereby the flow of fluid between the inlet and outlet passageways is interrupted, and seal means interposed between the plunger and housing for precluding leakage of fluid therebetween, said seal means comprising an axially extending imperforate boss member provided on the plunger, and cylindrical valve seat means provided in the housing for slidably sealing receiving the boss member therein said second position of the plunger.
Claim 2
Dependent Claim
159 words
A fluid flow control device comprising a housing having an internal bore, inlet and outlet passageway means provided in communication with the bore, plunger means reciprocally disposed within the bore, fluid passageway means provided in the plunger for directing fluid therethrough, means limiting the movement of the plunger within the bore in a first direction to provide an open position therefor whereby fluid may flow freely between the inlet and outlet passageways, means cooperating between the housing and plunger to provide a second position of the plunger within the bore fully closing the valve whereby the flow of fluid between the inlet and outlet passageways is interrupted, and seal means interposed between the plunger and housing for precluding leakage of fluid therebetween, said seal means comprising an axially extending imperforate boss member provided on the plunger, and cylindrical valve seat means provided in the housing for slidably sealing receiving the boss member therein said second position of the plunger.
Claim 3
Dependent Claim
67 words
A fluid flow control device as set forth in claim 1 and including drain bore means provided in the housing, and means limiting the movement of the plunger in an opposite direction from said first direction for providing a position of the plunger within the bore whereby fluid communication between the inlet and outlet passageways is precluded and fluid is simultaneously discharged through the drain bore means.
Claim 4
Dependent Claim
58 words
A fluid flow control device as set forth in claim 2 wherein the seal means includes a pair of longitudinally spaced seal members interposed between the plunger and housing for spanning the drain bore means in the open position and second position of the plunger within the bore to preclude flow of fluid through the drain bore means.
Claim 5
Dependent Claim
32 words
A fluid flow control device as set forth in claim 1 wherein the fluid passageway means provided in the plunger comprises a plurality of circumferentially spaced bores extending longitudinally through the plunger.
Claim 6
Dependent Claim
233 words
A fluid flow control device comprising a housing having an internal bore, inlet and outlet passageway means provided in communication with the bore, plunger means reciprocally disposed within the bore, fluid passageway means provided in the plunger for directing fluid therethrough, means limiting the movement of the plunger within the bore in a first direction to provide an open position therefor whereby fluid may flow freely between the inlet and outlet passageways, means cooperating between the housing and plunger to provide a second position of the plunger within the bore whereby the flow of fluid between the inlet and outlet passageways is interrupted, and seal means interposed between the plunger and housing for precluding leakage of fluid therebetween, and including drain bore means provided in the housing, and means limiting the movement of the plunger in an opposite direction from said first direction for providing a position of the plunger within the bore whereby fluid communication between the inlet and outlet passageways is precluded and fluid is simultaneously discharged through the drain bore means, and including an axially extending boss member carried by the plunger, said internal bore of the housing being provided with a reduced portion for slidably receiving the boss member therein, and seal means interposed between the boss member and reduced bore portion for precluding leakage of fluid therebetween in the said second position of the plunger within the bore.
Claim 7
Dependent Claim
233 words
A fluid flow control device comprising a housing having an internal bore, inlet and outlet passageway means provided in communication with the bore, plunger means reciprocally disposed within the bore, fluid passageway means provided in the plunger for directing fluid therethrough, means limiting the movement of the plunger within the bore in a first direction to provide an open position therefor whereby fluid may flow freely between the inlet and outlet passageways, means cooperating between the housing and plunger to provide a second position of the plunger within the bore whereby the flow of fluid between the inlet and outlet passageways is interrupted, and seal means interposed between the plunger and housing for precluding leakage of fluid therebetween, and including drain bore means provided in the housing, and means limiting the movement of the plunger in an opposite direction from said first direction for providing a position of the plunger within the bore whereby fluid communication between the inlet and outlet passageways is precluded and fluid is simultaneously discharged through the drain bore means, and including an axially extending boss member carried by the plunger, said internal bore of the housing being provided with a reduced portion for slidably receiving the boss member therein, and seal means interposed between the boss member and reduced bore portion for precluding leakage of fluid therebetween in the said second position of the plunger within the bore.
Claim 8
Dependent Claim
212 words
A fluid flow control device comprising a housing having an internal bore, fluid inlet and outlet passageways in communication with the bore, drain bore means provided in the housing and interposed between the inlet and outlet passageways, plunger means reciprocally disposed within the bore, fluid passageway means extending axially through the plunger means for directing the fluid therethrough, an imperforate boss member extending radially outward from one end of said plunger means, cylindrical valve seat means provided in the housing for slidably sealing receiving the boss member therein, said plunger being movable to a first position within the bore adjacent one end of the bore whereby fluid may flow freely therethrough between the inlet and outlet passageways through the passageway means, said plunger being movable to a second position within the bore whereby the boss member engages the valve seat for precluding flow of fluid between the inlet and outlet passageways, said plunger being movable to a third position within the bore adjacent the opposite end of the bore from the valve seat means whereby flow of fluid between the inlet and outlet passageways is precluded which simultaneously draining fluid through the drain bore means by gravity, and seal means interposed between the plunger and housing for precluding leadage of fluid therebetween.
Claim 9
Dependent Claim
212 words
A fluid flow control device comprising a housing having an internal bore, fluid inlet and outlet passageways in communication with the bore, drain bore means provided in the housing and interposed between the inlet and outlet passageways, plunger means reciprocally disposed within the bore, fluid passageway means extending axially through the plunger means for directing the fluid therethrough, an imperforate boss member extending radially outward from one end of said plunger means, cylindrical valve seat means provided in the housing for slidably sealing receiving the boss member therein, said plunger being movable to a first position within the bore adjacent one end of the bore whereby fluid may flow freely therethrough between the inlet and outlet passageways through the passageway means, said plunger being movable to a second position within the bore whereby the boss member engages the valve seat for precluding flow of fluid between the inlet and outlet passageways, said plunger being movable to a third position within the bore adjacent the opposite end of the bore from the valve seat means whereby flow of fluid between the inlet and outlet passageways is precluded which simultaneously draining fluid through the drain bore means by gravity, and seal means interposed between the plunger and housing for precluding leadage of fluid therebetween.
Claim 10
Dependent Claim
66 words
A fluid flow control device as set forth in claim 6 wherein the seal means comprises longitudinally spaced seal members interposed between the plunger and the bore with at least one seal member being disposed on each side of the drain bore means in the first and second positions for the plunger means, and seal means interposed between the boss member and the cylindrical valve seat.
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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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |