Patent US4685652A successfully refreshed from Google Patents.
US4685652A
Expired / Lapsed
US
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Valve construction and method of making the same
Assignee: Robertshaw Controls Co
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Filing: 1986-06-04
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Granted: 1987-08-11
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Expires: 2006-06-04
Abstract
Abstract A valve construction and method of making the same are provided, the valve construction comprising a housing, a valve seat carried by the housing, a movable lever carried by the housing and having an opening passing through opposed sides thereof, a valve member for opening and closing the valve seat and having a stem projecting through the opening of the lever whereby the valve member is carried by the lever, and a tubular member disposed in the opening of the lever and telescopically receiving the stem of the valve member therein whereby the tubular member spaces the stem from the lever at the opening thereof.
Inventors
- 👤 Harvey J. Shopsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:27
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/002; F23; F23N; F23N1/00; F23N1/005; F23K; F23K2900/00; F23K2900/05002; Y; Y10; Y10T; Y10T137/00; Y10T137/794; Y10T137/8122; Y10T137/8593; Y10T137/877; Y10T137/87708; Y10T137/87772; Y10T137/87877
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
195 words
In a valve construction comprising a housing means provided with a chamber therein and with an inlet leading to said chamber and an outlet leading from said chamber, a valve seat carried by said housing means and leading to said outlet, a movable bimetallic lever means carried by said housing means and having an operating bimetallic part, a heater wire means disposed in coiled relation on said operating part to heat the same when an electrical current flows through said heater wire means, and a valve member carried by said bimetallic lever means for opening and closing said valve seat under the control of said operating part of said bimetallic lever means said operating part of said bimetallic lever means having a tab extending therefrom and being operatively interconnected to said heater wire means to tend to hold said heater wire means in said coiled relation on said operating part of said bimetallic lever means, the improvement wherein said heater wire means comprises a length of said wire means doubled upon itself to define a looped end and a pair of free ends adjacent each other with said looped end being hooked over said tab.
Claim 2
Dependent Claim
195 words
In a valve construction comprising a housing means provided with a chamber therein and with an inlet leading to said chamber and an outlet leading from said chamber, a valve seat carried by said housing means and leading to said outlet, a movable bimetallic lever means carried by said housing means and having an operating bimetallic part, a heater wire means disposed in coiled relation on said operating part to heat the same when an electrical current flows through said heater wire means, and a valve member carried by said bimetallic lever means for opening and closing said valve seat under the control of said operating part of said bimetallic lever means said operating part of said bimetallic lever means having a tab extending therefrom and being operatively interconnected to said heater wire means to tend to hold said heater wire means in said coiled relation on said operating part of said bimetallic lever means, the improvement wherein said heater wire means comprises a length of said wire means doubled upon itself to define a looped end and a pair of free ends adjacent each other with said looped end being hooked over said tab.
Claim 3
Dependent Claim
49 words
A valve construction as set forth in claim 1 wherein said doubled length of wire means has two portions thereof disposed in side-by-side relation between said looped end and said free ends, said two portions being disposed in coiled relation around said operating part of said bimetallic lever means.
Claim 4
Dependent Claim
35 words
A valve construction as set forth in claim 2 wherein each said free end of said wire means is folded back upon itself as it extends from said operating part of said bimetallic lever means.
Claim 5
Dependent Claim
42 words
A valve construction as set forth in claim 3 wherein said operating part of said bimetallic lever means has opposed side edges, said free ends of said wire means being respectively folded back adjacent said side edges of said bimetallic lever means.
Claim 6
Dependent Claim
27 words
A valve construction as set forth in claim 4 wherein said heater wire means was coiled before being assembled said operating part of said bimetallic lever means.
Claim 7
Dependent Claim
27 words
A valve construction as set forth in claim 1 wherein said tab is carved from said operating part of said bimetallic lever means and is one-piece therewith.
Claim 8
Dependent Claim
29 words
A valve construction as set forth in claim 6 wherein said tab has a free end that extends substantially parallel with the longitudinal axis of said bimetallic lever means.
Claim 9
Dependent Claim
47 words
A valve construction as set forth in claim 7 wherein said operating part of said bimetallic lever means has opposed side edges that are substantially parallel to each other and to said longitudinal axis of said bimetallic lever means, said tab being disposed intermediate said side edges.
Claim 10
Dependent Claim
195 words
In a valve construction comprising a housing means provided with a chamber therein and with an inlet leading to said chamber and an outlet leading from said chamber, a valve seat carried by said housing means and leading to said outlet, a movable bimetallic lever means carried by said housing means and having an operating bimetallic part, a heater wire means disposed in coiled relation on said operating part to heat the same when an electrical current flows through said heater wire means, and a valve member carried by said bimetallic lever means for opening and closing said valve seat under the control of said operating part of said bimetallic lever means, said operating part of said bimetallic lever means having a tab extending therefrom and being operatively interconnected to said heater wire means to tend to hold said heater wire means in said coiled relation on said operating part of said bimetallic lever means, the improvement wherein said heater wire means comprises a length of said wire means doubled upon itself to define a looped end and a pair of free ends adjacent each other with said looped end being disposed under said tab.
Claim 11
Dependent Claim
195 words
In a valve construction comprising a housing means provided with a chamber therein and with an inlet leading to said chamber and an outlet leading from said chamber, a valve seat carried by said housing means and leading to said outlet, a movable bimetallic lever means carried by said housing means and having an operating bimetallic part, a heater wire means disposed in coiled relation on said operating part to heat the same when an electrical current flows through said heater wire means, and a valve member carried by said bimetallic lever means for opening and closing said valve seat under the control of said operating part of said bimetallic lever means, said operating part of said bimetallic lever means having a tab extending therefrom and being operatively interconnected to said heater wire means to tend to hold said heater wire means in said coiled relation on said operating part of said bimetallic lever means, the improvement wherein said heater wire means comprises a length of said wire means doubled upon itself to define a looped end and a pair of free ends adjacent each other with said looped end being disposed under said tab.
Claim 12
Dependent Claim
49 words
A valve construction as set forth in claim 9 wherein said doubled length of wire means has two portions thereof disposed in side-by-side relation between said looped end and said free ends, said two portions being disposed in coiled relation around said operating part of said bimetallic lever means.
Claim 13
Dependent Claim
35 words
A valve construction as set forth in claim 10 wherein each said free end of said wire means is folded back upon itself as it extends from said operating part of said bimetallic lever means.
Claim 14
Dependent Claim
42 words
A valve construction as set forth in claim 11 wherein said operating part of said bimetallic lever means has opposed side edges, said free ends of said wire means being respectively folded back adjacent said side edges of said bimetallic lever means.
Claim 15
Dependent Claim
28 words
A valve construction as set forth in claim 12 wherein said heater wire means was coiled before being assembled on said operating part of said bimetallic lever means.
Claim 16
Dependent Claim
26 words
valve construction as set forth in claim 9 wherein said tab is carved from said operating part of said bimetallic lever means and is one-piece therewith.
Claim 17
Dependent Claim
29 words
A valve construction as set forth in claim 14 wherein said tab has a free end that extends substantially parallel with the longitudinal axis of said bimetallic lever means.
Claim 18
Dependent Claim
47 words
A valve construction as set forth in claim 15 wherein said operating part of said bimetallic lever means has opposed side edges that are substantially parallel to each other and to said longitudinal axis of said bimetallic lever means, said tab being disposed intermediate said side edges.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-10 | 1991-02-09 | 1991-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-10 | 1995-02-09 | 1995-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-10 | 1999-02-09 | 1999-08-11 | $7700.00 | Window Closed / Lapsed |