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US4157158A Expired / Lapsed US ⏱️ 0.0 years remaining

Temperature responsive valve assembly

Assignee: Aisin Corp
•
Filing: 1978-01-18
•
Granted: 1979-06-05
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Expires: 1998-01-18
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Abstract

Abstract A temperature responsive valve assembly includes a body having an inlet port and first and second outlet ports, a thermostatic bimetal disk disposed within the body and responsive to a variation in temperature to change the curvature thereof from a first position to a second position, a first seat portion disposed within a first passage between the inlet port and the first outlet port, a second seat portion disposed within a second passage between the inlet port and the second outlet port, a valve member arranged between the first and second seat portions and engageable with both seat portions, a connecting means following the movement of the bimetal disk to thereby actuate the valve members between a first position wherein the valve member engages with the first seat portion to control the first passage and a second positon wherein the valve member engages with the second seat portion to control the second passage, a seat member having the second seat portion thereon and being adjustably threaded with the body, the seat member having a projection receiving area, and a plate member secured to the body and having a projection positioned within the receiving area of the seat member.

Inventors

  • 👤 Kazuhiko Kitamura
  • 👤 Masami Inada

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 01:33
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/08; G05D23/10

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 196 words
A temperature responsive valve assembly comprising: a body having a common port and first and second ports, a thermostatic bimetal disk disposed within said body and responsive to a variation in temperature to change the curvature thereof from a first position to a second position, a first seat portion disposed within a first passage between said common port and said first port, a second seat portion disposed within a second passage between said common port and said second port, a valve member arranged between said first and second seat portions and engageable with said both seat portions, a connecting means following the movement of said bimetal disk to thereby actuate said valve member between a first position wherein said valve member engages with said first seat portion to control said first passage, and a second position wherein said valve member engages with said second seat portion to control said second passage, a seat member having said second seat portion thereon and being adjustably threaded with said body, said seat member having a projection receiving area, and a plate member secured to said body and having a projection positioned within said receiving area of said seat member.
Claim 2
Dependent Claim 196 words
A temperature responsive valve assembly comprising: a body having a common port and first and second ports, a thermostatic bimetal disk disposed within said body and responsive to a variation in temperature to change the curvature thereof from a first position to a second position, a first seat portion disposed within a first passage between said common port and said first port, a second seat portion disposed within a second passage between said common port and said second port, a valve member arranged between said first and second seat portions and engageable with said both seat portions, a connecting means following the movement of said bimetal disk to thereby actuate said valve member between a first position wherein said valve member engages with said first seat portion to control said first passage, and a second position wherein said valve member engages with said second seat portion to control said second passage, a seat member having said second seat portion thereon and being adjustably threaded with said body, said seat member having a projection receiving area, and a plate member secured to said body and having a projection positioned within said receiving area of said seat member.
Claim 3
Dependent Claim 31 words
A temperature responsive valve assembly as set forth in claim 1, where; said plate member is made of a non-conductive material and arranged between said seat member and said bimetal disk.
Claim 4
Dependent Claim 41 words
A temperature responsive valve assembly as set forth in claim 1, wherein; said body has an annular member which is secured thereto, said annular member having inner periphery threads which engage with threads provided on outer periphery of said seat member.
Claim 5
Dependent Claim 23 words
A temperature responsive valve assembly as set forth in claim 1, wherein; said projection receiving area forms a part of said second passage.
Claim 6
Dependent Claim 24 words
A temperature responsive valve assembly as set forth in claim 1, further comprising: a spring means biasing said valve member towards said connecting means.
Claim 7
Dependent Claim 24 words
A temperature responsive valve assembly as set forth in claim 1, further comprising: a spring means biasing said bimetal disk towards said first position.

References Cited (Backward Citations)

US807476A Cited
US1908440A Cited
US2736529A Cited
US4068800A Cited
US4026464A Cited
US4076172A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-06-04 1982-12-04 1983-06-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-06-04 1986-12-04 1987-06-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-06-04 1990-12-04 1991-06-05 $7700.00 Window Closed / Lapsed

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