US3656709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve having improved cam-type actuator
Assignee: Nupro Co
•
Filing: 1970-07-08
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Granted: 1972-04-18
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Expires: 1990-07-08
Abstract
Abstract A valve of the type including a body having an internal valve chamber and a valve element mounted therein for reciprocatory movement between at least two positions for controlling flow through the chamber. An operating stem having a free end extending outwardly of the chamber is arranged for moving the valve element. The stem is moved by operating means including a cap means connected to the body and extending over the free end with a cam member mounted in the cap means for rotation about an axis perpendicular to the axis of the stem. An operating shaft extends from the cam member to a position outwardly of the cap means and an operating handle is associated with the shaft for moving it between at least two positions. Additionally, latching means are associated with the handle and the cap means for locking the cam in at least one position.
Inventors
- 👤 Earl D Shufflebarger
- 👤 Oliver L Danko
- 👤 Richard J Medvick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:32
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
203 words
A valve comprising: a body having an internal valve chamber and flow passages extending into said chamber; a reciprocal valve element carried within said chamber and arranged for movement between a first position where it blocks flow through said chamber to a second position where it permits flow through said chamber; an operating stem member connected to said valve element and having a free end extending outwardly of said chamber; biasing means for maintaining said valve element continually biased toWard said second position; cap means connected to said body and enclosing said free end of said stem; and, operating means for moving said valve element from said second to said first position, said operating means including a cam member carried by said cap for rotation about an axis generally perpendicular to the axis of said stem, handle means for rotating said cam member, comprising a shaft connected to said cam member and extending outwardly of said cap means, and manually releasable latching means between said handle and said cap means for latching said handle in a position wherein said stem and valve element are in said first position, said latching means including a sleeve carried by said shaft and biased toward said cap.
Claim 2
Dependent Claim
203 words
A valve comprising: a body having an internal valve chamber and flow passages extending into said chamber; a reciprocal valve element carried within said chamber and arranged for movement between a first position where it blocks flow through said chamber to a second position where it permits flow through said chamber; an operating stem member connected to said valve element and having a free end extending outwardly of said chamber; biasing means for maintaining said valve element continually biased toWard said second position; cap means connected to said body and enclosing said free end of said stem; and, operating means for moving said valve element from said second to said first position, said operating means including a cam member carried by said cap for rotation about an axis generally perpendicular to the axis of said stem, handle means for rotating said cam member, comprising a shaft connected to said cam member and extending outwardly of said cap means, and manually releasable latching means between said handle and said cap means for latching said handle in a position wherein said stem and valve element are in said first position, said latching means including a sleeve carried by said shaft and biased toward said cap.
Claim 3
Dependent Claim
28 words
The valve as defined in claim 1 wherein said cap means is freely rotatable relative to said body in a plane perpendicular to the axis of said stem.
Claim 4
Dependent Claim
28 words
The valve as defined in claim 1 including adjusting means between said cap means and said body for varying the position of said cap relative to said body.
Claim 5
Dependent Claim
23 words
The valve as defined in claim 1 including a thrust member positioned between said cam member and the free end of said stem.
Claim 6
Dependent Claim
154 words
A valve of the type including a body having a valve chamber with a reciprocable valve element positioned therein and an operating stem with a free end extending outwardly of said valve chamber for movement between at least two positions including an open position and a closed position, and means for biasing said element toward one of said positions; the improvement comprising: cap means connected to said body and extending over the free end of said stem; a cam member mounted in said cap means for rotation about an axis perpendicular to the axis of said stem; an operating shaft extending from said cam outwardly of said cap means and including an operating handle for moving said shaft; and, a latch assembly operable by said handle and including a reciprocal member carried by said shaft and biased toward and engageable with said cap means for locking said cam member in at least one position.
Claim 7
Dependent Claim
154 words
A valve of the type including a body having a valve chamber with a reciprocable valve element positioned therein and an operating stem with a free end extending outwardly of said valve chamber for movement between at least two positions including an open position and a closed position, and means for biasing said element toward one of said positions; the improvement comprising: cap means connected to said body and extending over the free end of said stem; a cam member mounted in said cap means for rotation about an axis perpendicular to the axis of said stem; an operating shaft extending from said cam outwardly of said cap means and including an operating handle for moving said shaft; and, a latch assembly operable by said handle and including a reciprocal member carried by said shaft and biased toward and engageable with said cap means for locking said cam member in at least one position.
Claim 8
Dependent Claim
18 words
The valve as defined in claim 5 wherein said cap means is freely rotatable relative to said body.
Claim 9
Dependent Claim
28 words
The valve as defined in claim 5 including adjusting means between said cap means and said body for varying the position of said cap relative to said body.
Claim 10
Dependent Claim
23 words
The valve as defined in claim 5 including a thrust member positioned between said cam member and the free end of said stem.
References Cited (Backward Citations)
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Cited
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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) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |