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CA2507782A1 - Supply biased pneumatic pressure relay - Google Patents

Supply biased pneumatic pressure relay Download PDF

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Publication number
CA2507782A1
CA2507782A1 CA002507782A CA2507782A CA2507782A1 CA 2507782 A1 CA2507782 A1 CA 2507782A1 CA 002507782 A CA002507782 A CA 002507782A CA 2507782 A CA2507782 A CA 2507782A CA 2507782 A1 CA2507782 A1 CA 2507782A1
Authority
CA
Canada
Prior art keywords
housing
pressure
supply
modular
pneumatic
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.)
Granted
Application number
CA002507782A
Other languages
French (fr)
Other versions
CA2507782C (en
Inventor
Brian J. Burlage
Steven B. Paullus
Stanley R. Good
Barry L. Gaarder
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.)
Fisher Controls International LLC
Original Assignee
Individual
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
Priority claimed from US08/114,955 external-priority patent/US5439021A/en
Application filed by Individual filed Critical Individual
Publication of CA2507782A1 publication Critical patent/CA2507782A1/en
Application granted granted Critical
Publication of CA2507782C publication Critical patent/CA2507782C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

An electro-pneumatic converter device with modular components and with supporting housing structure enabling the device to be readily convertible from a current to pressure positioner to a current to pressure transducer. A valve positioner with an enclosure having a housing, a modular base, and a separable field terminal box. A self contained cover mounted to the enclosure with no additional mounting components. A plastic pneumatic relay ultrasonically welded together to eliminate metal mounting parts and lower assembly time. Open channels in a housing surface cooperating with a gasket to provide fluid passageways between the housing and the modular base.
Pressure gauges are removably mounted on a modular unit for location completely within the housing. A floating interconnect terminal board permits self-aligning of mating terminals as the modular unit is inserted into the housing. A supply biased pneumatic pressure relay has supply pressure channeled to the supply port and also to a supply bias cavity through a capillary hole.
CA002507782A 1992-09-09 1993-09-08 Supply biased pneumatic pressure relay Expired - Lifetime CA2507782C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US94275892A 1992-09-09 1992-09-09
US942,758 1992-09-09
US08/114,955 1993-08-31
US08/114,955 US5439021A (en) 1992-09-09 1993-08-31 Electro-pneumatic converter
CA 2105705 CA2105705C (en) 1992-09-09 1993-09-08 Electro-pneumatic converter

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA 2105705 Division CA2105705C (en) 1992-09-09 1993-09-08 Electro-pneumatic converter

Publications (2)

Publication Number Publication Date
CA2507782A1 true CA2507782A1 (en) 1994-03-10
CA2507782C CA2507782C (en) 2006-02-14

Family

ID=34753231

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002507782A Expired - Lifetime CA2507782C (en) 1992-09-09 1993-09-08 Supply biased pneumatic pressure relay

Country Status (1)

Country Link
CA (1) CA2507782C (en)

Also Published As

Publication number Publication date
CA2507782C (en) 2006-02-14

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