US3554160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicator posts for use in conjunction with valves
Assignee: CANADA VALUE Inc
•
Filing: 1969-04-01
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Granted: 1971-01-12
•
Expires: 1989-04-01
Abstract
Abstract An indicator device for a nonrising stem valve has a housing in which is mounted an elongated screw adapted to be coupled to the valve stem. The screw is rotatable but cannot move axially. The screw is hollow and has a pair of elongated slots through which a bar extends transversely and an indicator rod, located in the hollow screw, is attached to the bar. The ends of the bar are attached to a follower threaded onto the screw. The follower nut can move axially of the screw but is restrained against rotation. The bar ends are connected to the nut in a manner to allow the bar to rotate with the screw. As the screw is turned the nut, bar and rod move axially of the screw.
Inventors
- 👤 Ronald Fortune
- 👤 Ernest G Mills
- 👤 James Beverley Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:35
CPC Classifications
F; F16; F16K; F16K37/00; F16K37/0008; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
115 words
A device for indicating the extent of opening or closing of valves operable by means of a rotatable valve stem characterized by an elongated housing, an elongated rotatable member within said housing, said member being restrained against longitudinal movement, a second member within said housing restrained against rotary movement by being in operable engagement with said elongated rotatable member in a manner to produce straight line motion in said second member upon rotation of said elongated rotatable member, an indicator rod engaged with said second member and extending to the outside of said housing, means externally of said housing for rotating said rotatable member and means for coupling said rotatable member to the valve stem.
Claim 2
Independent Claim
115 words
A device for indicating the extent of opening or closing of valves operable by means of a rotatable valve stem characterized by an elongated housing, an elongated rotatable member within said housing, said member being restrained against longitudinal movement, a second member within said housing restrained against rotary movement by being in operable engagement with said elongated rotatable member in a manner to produce straight line motion in said second member upon rotation of said elongated rotatable member, an indicator rod engaged with said second member and extending to the outside of said housing, means externally of said housing for rotating said rotatable member and means for coupling said rotatable member to the valve stem.
Claim 3
Dependent Claim
75 words
A device in accordance with claim 1 in which said elongated rotatable member has a central passageway through which said indicator rod extends, said rotatable member has at least one elongated slot extending through the wall thereof, a connecting member extends from said second member through said slot into said passageway, and said indicator rod is attached to said second member in a manner which permits the connecting member to rotate with said rotatable member.
Claim 4
Dependent Claim
27 words
A device in accordance with claim 2 in which said elongated rotatable member is outwardly threaded and said second member is threadedly engaged with said rotatable member.
Claim 5
Dependent Claim
29 words
A device in accordance with claim 1 in which said indicator rod extends outside said housing from the end opposite to that in which said coupling means is located.
Claim 6
Dependent Claim
29 words
A device in accordance with claim 2 in which said indicator rod extends outside said housing from the end opposite to that in which said coupling means is located.
Claim 7
Dependent Claim
29 words
A device in accordance with claim 3 in which said indicator rod extends outside said housing from the end opposite to that in which said coupling means is located.
Claim 8
Dependent Claim
48 words
A device in accordance with claim 1 in which means are provided at the end of the housing opposite to that from which the indicator rod extends for mounting said housing on a valve, and said coupling means is located adjacent the same end as said mounting means.
Claim 9
Dependent Claim
48 words
A device in accordance with claim 2 in which means are provided at the end of the housing opposite to that from which the indicator rod extends for mounting said housing on a valve, and said coupling means is located adjacent the same end as said mounting means.
Claim 10
Dependent Claim
48 words
A device in accordance with claim 3 in which means are provided at the end of the housing opposite to that from which the indicator rod extends for mounting said housing on a valve, and said coupling means is located adjacent the same end as said mounting means.
Claim 11
Dependent Claim
99 words
A device in accordance with claim 3 in which said elongated rotatable member has two oppositely positioned slots, the said second member is a follower nut threaded onto said elongated rotatable member, said connecting member is a crossbar extending transversely through said slots and through a hole in said indicator rod, the ends of the crossbar are attached to said follower nut in a manner to permit said ends to revolve and rotate relative to said nut and said follower nut and inside wall of said housing have cooperating keys and elongated keyways to prevent the nut from rotating.
Claim 12
Dependent Claim
57 words
A device in accoRdance with claim 2 in which said elongated slots are of sufficient length to enable the connecting member of crossbar to travel the full distance along the line of motion to which it is translated during full opening and complete closing of the valve in connection with which it is adapted to be used.
Claim 13
Dependent Claim
57 words
A device in accordance with claim 3 in which said elongated slots are of sufficient length to enable the connecting member or crossbar to travel the full distance along the line of motion to which it is translated during full opening and complete closing of the valve in connection with which it is adapted to be used.
Claim 14
Dependent Claim
57 words
A device in accordance with claim 6 in which said elongated slots are of sufficient length to enable the connecting member or crossbar to travel the full distance along the line of motion to which it is translated during full opening and complete closing of the valve in connection with which it is adapted to be used.
Claim 15
Dependent Claim
25 words
A device in accordance with claim 10 in which the crossbar is round and the crossbar fits loosely in the hole in the indicator rod.
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |