GB1299652A - Condition responsive pneumatic valve construction - Google Patents

Condition responsive pneumatic valve construction

Info

Publication number
GB1299652A
GB1299652A GB1751970A GB1751970A GB1299652A GB 1299652 A GB1299652 A GB 1299652A GB 1751970 A GB1751970 A GB 1751970A GB 1751970 A GB1751970 A GB 1751970A GB 1299652 A GB1299652 A GB 1299652A
Authority
GB
United Kingdom
Prior art keywords
slide
valve
limb
parts
april
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1751970A
Inventor
Douglas Rex St John Scott
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robertshaw Controls Co
Original Assignee
Robertshaw Controls Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robertshaw Controls Co filed Critical Robertshaw Controls Co
Publication of GB1299652A publication Critical patent/GB1299652A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/185—Control of temperature with auxiliary non-electric power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B5/00—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/185—Control of temperature with auxiliary non-electric power
    • G05D23/1854—Control of temperature with auxiliary non-electric power with bimetallic element

Abstract

1299652 Valves ROBERTSHAW CONTROLS CO 13 April 1970 [14 April 1969] 17519/70 Heading F2V A thermally actuated valve has a surface 15 provided with inlet and outlet parts (18), 19, a slide 31 provided with a channel 35, and a bimetal strip 39 arranged to move the slide to open or close a flow path between the parts through channel 35. The slide is of laminated construction with a porous compressible layer 34 which forces the outer layers 32, 33 into sealing contact with the walls of slot 15, and which forms a filter adjacent a hole 38 which is aligned with and vents output port 19 when the valve is closed. The bi-metal strip is of U-shape with its end 44 attached to slide 31, and its other end 40 secured to casing 11 which has opaque portions surrounding the anchored striplimb and a transparent window 53 over the free limb so that this limb can be heated by a heater 29 when it is actuated by a control 27 fed through the valve with fluid from a source 25. The subsequent movement of slide 31 cuts off the fluid supply to control 27 which cuts off the heater so that the bi-metal strip returns the parts to their starting positions. Limb 39 compensates the valve for changes in ambient temperature.
GB1751970A 1969-04-14 1970-04-13 Condition responsive pneumatic valve construction Expired GB1299652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81597769A 1969-04-14 1969-04-14

Publications (1)

Publication Number Publication Date
GB1299652A true GB1299652A (en) 1972-12-13

Family

ID=25219338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1751970A Expired GB1299652A (en) 1969-04-14 1970-04-13 Condition responsive pneumatic valve construction

Country Status (6)

Country Link
AU (1) AU1377170A (en)
CA (1) CA923401A (en)
DE (1) DE2017635A1 (en)
FR (1) FR2043264A5 (en)
GB (1) GB1299652A (en)
NL (1) NL7005250A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981261A (en) * 1987-10-08 1991-01-01 American Standard Inc. Shut-off valve for scald prevention

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090596A (en) * 1977-01-26 1978-05-23 Wallace Murray Corporation Temperature responsive fan drive coupling
DE3544989A1 (en) * 1985-12-19 1987-07-02 Daimler Benz Ag Modulator for acting on at least one adjusting element actuated by positive pressure or vacuum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981261A (en) * 1987-10-08 1991-01-01 American Standard Inc. Shut-off valve for scald prevention
AT396623B (en) * 1987-10-08 1993-10-25 Ideal Standard SCALING PROTECTION DEVICE FOR SANITARY SYSTEMS, IN PARTICULAR SHOWERS

Also Published As

Publication number Publication date
CA923401A (en) 1973-03-27
NL7005250A (en) 1970-10-16
DE2017635A1 (en) 1970-10-15
AU1377170A (en) 1971-10-14
FR2043264A5 (en) 1971-02-12

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees