US3813034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature responsive device and method of making the same
Assignee: Robertshaw Controls Co
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Filing: 1972-11-20
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Granted: 1974-05-28
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Expires: 1992-11-20
Abstract
Abstract A temperature responsive device having a support frame carrying a valve seat that is adapted to be opened and closed by a ball valve member urged to its closed position by a bimetal member having one of its ends operatively associated with the ball valve member and the other end thereof secured to one end of a lever that has its opposed ends respectively disposed against the support frame and being secured solely thereto by a calibration screw that passes through an opening in a triangularly shaped tongue carved from an itnermediate portion of the lever so that the bend line for the lever machine is intermediate the calibration screw and one of the ends of the lever. The other end of the lever bears against a cam surface which can be made adjustable for temperature selection purposes.
Inventors
- 👤 J Lewis
- 👤 L Puster
- 👤 H Brakebill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:18
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/185; G05D23/1854
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
123 words
A temperature responsive device comprising support means, a lever carried by said support means and having opposed ends, a bimetal member having opposed ends one of which is secured to one of said ends of said lever, an operable member being carried by said support means and being operatively associated with said bimetal member to be operated thereby, and a calibration member securing said lever to said support means intermediate said ends of said lever and providing means for calibrating said device, said lever having a tongue formed therefrom intermediate said ends thereof, said tongue having an opening passing therethrough and receiving said calibration member whereby said tongue provides a resilient mounting for said lever to said support means by said calibration member.
Claim 2
Dependent Claim
123 words
A temperature responsive device comprising support means, a lever carried by said support means and having opposed ends, a bimetal member having opposed ends one of which is secured to one of said ends of said lever, an operable member being carried by said support means and being operatively associated with said bimetal member to be operated thereby, and a calibration member securing said lever to said support means intermediate said ends of said lever and providing means for calibrating said device, said lever having a tongue formed therefrom intermediate said ends thereof, said tongue having an opening passing therethrough and receiving said calibration member whereby said tongue provides a resilient mounting for said lever to said support means by said calibration member.
Claim 3
Dependent Claim
18 words
A temperature responsive device as set forth in claim 1 wherein said operable member comprises a valve member.
Claim 4
Dependent Claim
144 words
A temperature responsive device comprising support means, a lever carried by said support means and having opposed ends, a bimetal member having opposed ends one of which is secured to one of said ends of said lever, an operable member being carried by said support means and being operatively associated with said bimetal member to be operated thereby, and a calibration member securing said lever to said support means intermediate said ends of said lever and providing means for calibrating said device, said operable member comprising a valve member, said support means having a conical valve seat, said valve member comprising a ball disposed in said valve seat, said bimetal member having the other end thereof bearing against said ball to tend to hold said ball against said seat with a biasing force thereof that varies in accordance with the temperature being sensed thereby.
Claim 5
Dependent Claim
144 words
A temperature responsive device comprising support means, a lever carried by said support means and having opposed ends, a bimetal member having opposed ends one of which is secured to one of said ends of said lever, an operable member being carried by said support means and being operatively associated with said bimetal member to be operated thereby, and a calibration member securing said lever to said support means intermediate said ends of said lever and providing means for calibrating said device, said operable member comprising a valve member, said support means having a conical valve seat, said valve member comprising a ball disposed in said valve seat, said bimetal member having the other end thereof bearing against said ball to tend to hold said ball against said seat with a biasing force thereof that varies in accordance with the temperature being sensed thereby.
Claim 6
Dependent Claim
93 words
A temperature responsive device comprising support means, a lever carried by said support means and having opposed ends, a bimetal member having opposed ends one of which is secured to one of said ends of said lever, an operable member being carried by said support means and being operatively associated with said bimetal member to be operated thereby, and a calibration member securing said lever to said support means intermediate said ends of said lever and providing means for calibrating said device, said opposed ends of said lever bearing against said support means.
Claim 7
Dependent Claim
93 words
A temperature responsive device comprising support means, a lever carried by said support means and having opposed ends, a bimetal member having opposed ends one of which is secured to one of said ends of said lever, an operable member being carried by said support means and being operatively associated with said bimetal member to be operated thereby, and a calibration member securing said lever to said support means intermediate said ends of said lever and providing means for calibrating said device, said opposed ends of said lever bearing against said support means.
Claim 8
Dependent Claim
31 words
A temperature responsive device as set forth in claim 4 wherein the part of said support means that is engaged by said one end of said lever comprises a cam surface.
Claim 9
Dependent Claim
28 words
A temperature responsive device as set forth in claim 5 wherein said cam surface part of said support means is adjustable for temperature selection purposes of said device.
Claim 10
Dependent Claim
41 words
A temperature responsive device as set forth in claim 6 wherein said cam surface part of said support means comprises a sector-like part rotatably moUnted to said support means, said cam surface being disposed in an arcuate manner on said part.
Claim 11
Dependent Claim
42 words
A temperature responsive device as set forth in claim 4 wherein said one end of said lever makes a single point contact with said support means and said other end of said lever makes a two point contact with said support means.
Claim 12
Dependent Claim
53 words
A temperature responsive device as set forth in claim 8 wherein said support means has a pair of spaced apart conical abutments projecting therefrom, said other end of said lever having a pair of spaced apart openings therein respectively receiving said abutments therein to provide said two point contact with said support means.
Claim 13
Dependent Claim
52 words
A temperature responsive device as set forth in claim 4 wherein said lever has a tongue formed therefrom intermediate said ends thereof, said tongue having an opening passing therethrough and receiving said calibration member whereby said tongue provides a resilient mounting for said lever to said support means by said calibration member.
Claim 14
Dependent Claim
31 words
A temperature responsive device as set forth in claim 10 wherein the other end of said bimetal member extends toward said other end of said lever and operates said operable member.
Claim 15
Dependent Claim
77 words
A temperature responsive device as set forth in claim 11 wherein said tongue of said lever is substantially triangular with only the base thereof being hinged to the remainder of said lever in a facing direction toward said other end of said lever, said opening in said tongue being near the apex of the triangular tongue so that the effective bend line of said lever is between said calibration member and said other end of said lever.
Claim 16
Independent Claim
130 words
A method for making a temperature responsive device comprising the steps of providing support means and a lever to be carried by said support means and having opposed ends, securing one end of a bimetal member to one end of said lever, securing said lever to said support means intermediate said ends of said lever solely by a calibration member that also provides means for calibrating said device whereby an operable member carried by said support means is operatively associated with said bimetal member to be operated thereby, forming a tongue from said lever intermediate said ends thereof, forming an opening through said tongue, and disposing said calibration member in said opening whereby said tongue provides a resilient mounting for said lever to said support means by said calibration member.
Claim 17
Independent Claim
130 words
A method for making a temperature responsive device comprising the steps of providing support means and a lever to be carried by said support means and having opposed ends, securing one end of a bimetal member to one end of said lever, securing said lever to said support means intermediate said ends of said lever solely by a calibration member that also provides means for calibrating said device whereby an operable member carried by said support means is operatively associated with said bimetal member to be operated thereby, forming a tongue from said lever intermediate said ends thereof, forming an opening through said tongue, and disposing said calibration member in said opening whereby said tongue provides a resilient mounting for said lever to said support means by said calibration member.
Claim 18
Dependent Claim
17 words
A method as set forth in claim 13 wherein said operable member comprises a ball valve member.
Claim 19
Independent Claim
156 words
A method for making a temperature responsive device comprising the steps of providing support means and a lever to be carried by said support means and having opposed ends, securing one end of a bimetal member to one end of said lever, securing said lever to said support means intermediate said ends of said lever solely by a calibration member that also provides means for calibrating said device whereby an oerable member carried by said support means is operatively associated with said bimetal member to be operated thereby, said operable member comprising a ball valve member, forming a conical valve seat on said support means, and disposing said ball valve member in said valve seat, said securing step causing said bimetal member to have the other end thereof bear against said ball to tend to hold said ball against said seat with a biasing force thereof that varies in accordance with the temperature being sensed thereby.
Claim 20
Independent Claim
156 words
A method for making a temperature responsive device comprising the steps of providing support means and a lever to be carried by said support means and having opposed ends, securing one end of a bimetal member to one end of said lever, securing said lever to said support means intermediate said ends of said lever solely by a calibration member that also provides means for calibrating said device whereby an oerable member carried by said support means is operatively associated with said bimetal member to be operated thereby, said operable member comprising a ball valve member, forming a conical valve seat on said support means, and disposing said ball valve member in said valve seat, said securing step causing said bimetal member to have the other end thereof bear against said ball to tend to hold said ball against said seat with a biasing force thereof that varies in accordance with the temperature being sensed thereby.
Claim 21
Independent Claim
112 words
A method for making a temperature responsive device comprising the steps of providing support means and a lever to be carried by said support means and having opposed ends, securing one end of a bimetal member to one end of said lever, and securing said lever to said support means intermediate said ends of said lever solely by a calibration member that also provides means for calibrating said device whereby an operable member carried by said support means is operatively associated with said bimetal member to be operated thereby, said step of securinG said lever to said support means causing the opposed ends of said lever to bear against said support means.
Claim 22
Independent Claim
112 words
A method for making a temperature responsive device comprising the steps of providing support means and a lever to be carried by said support means and having opposed ends, securing one end of a bimetal member to one end of said lever, and securing said lever to said support means intermediate said ends of said lever solely by a calibration member that also provides means for calibrating said device whereby an operable member carried by said support means is operatively associated with said bimetal member to be operated thereby, said step of securinG said lever to said support means causing the opposed ends of said lever to bear against said support means.
Claim 23
Dependent Claim
41 words
A method as set forth in claim 16 including the step of forming the part of said support means that is engaged by said one end of said lever with a cam surface that engages said one end of said lever.
Claim 24
Dependent Claim
34 words
A method as set forth in claim 17 and including the step of forming said cam surface part of said support means so as to be adjustable for temperature selection purposes of said device.
Claim 25
Dependent Claim
46 words
A method as set forth in claim 18 and including the steps of forming said cam surface part of said support means as a sector-like part, rotatably mounting said part to said support means, and forming said cam surface in an arcuate manner on said part.
Claim 26
Dependent Claim
52 words
A method as set forth in claim 16 wherein said step of securing said lever to said support means causes one end of said lever to make a single point contact with said support means and said other end of said lever to make a two point contact with said support means.
Claim 27
Dependent Claim
59 words
A method as set forth in claim 20 and including the steps of forming said support means with a pair of spaced apart conical abutments projecting therefrom, and forming the other end of said lever with a pair of spaced apart openings therein that respectively receive said abutments therein to provide said two point contact with said support means.
Claim 28
Dependent Claim
55 words
A method as set forth in claim 16 and including the steps of forming a tongue from said lever intermediate said ends thereof, forming on opening through said tongue, and disposing said calibration member in said opening whereby said tongue provides a resilient mounting for said lever to said support means by said calibration member.
Claim 29
Dependent Claim
29 words
A method as set forth in claim 22 wherein the other end of said bimetal member extends toward said other end of said lever and operates said operable member.
Claim 30
Dependent Claim
94 words
A method as set forth in claim 23 wherein said step of forming said tongue causes said tongue of said lever to be substantially triangular with only the base thereof being hinged to the remainder of said lever in a facing direction toward said other end of said lever, said step of forming said opening in said tongue causing said opening in said tongue to be near the apex of the traingular tongue so that the effective bend line of said lever is between said calibration member and said other end of said lever.
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) | 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 |