IT1047722B - Interruttore elettrico sensibile alla pressione - Google Patents

Interruttore elettrico sensibile alla pressione

Info

Publication number
IT1047722B
IT1047722B IT51682/75A IT5168275A IT1047722B IT 1047722 B IT1047722 B IT 1047722B IT 51682/75 A IT51682/75 A IT 51682/75A IT 5168275 A IT5168275 A IT 5168275A IT 1047722 B IT1047722 B IT 1047722B
Authority
IT
Italy
Prior art keywords
pressure sensitive
electric switch
sensitive electric
switch
pressure
Prior art date
Application number
IT51682/75A
Other languages
English (en)
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Application granted granted Critical
Publication of IT1047722B publication Critical patent/IT1047722B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
    • G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
    • G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/38—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by piston and cylinder
IT51682/75A 1974-12-04 1975-10-07 Interruttore elettrico sensibile alla pressione IT1047722B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/529,866 US3946176A (en) 1974-12-04 1974-12-04 Differential pressure switch

Publications (1)

Publication Number Publication Date
IT1047722B true IT1047722B (it) 1980-10-20

Family

ID=24111560

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51682/75A IT1047722B (it) 1974-12-04 1975-10-07 Interruttore elettrico sensibile alla pressione

Country Status (8)

Country Link
US (1) US3946176A (it)
JP (1) JPS5171971A (it)
BR (1) BR7507841A (it)
CA (1) CA1039780A (it)
DE (1) DE2553327C2 (it)
FR (1) FR2293780A1 (it)
GB (1) GB1515178A (it)
IT (1) IT1047722B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3225978C2 (de) * 1982-07-10 1986-08-28 Robert Bosch Gmbh, 7000 Stuttgart Druckschalter
US5122628A (en) * 1990-05-25 1992-06-16 Fike Corporation Sudden pressure rise detector
US6089098A (en) * 1998-04-16 2000-07-18 Dwyer Instruments, Inc. Differential pressure switch having an isolated hall effect sensor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735369A (en) * 1956-02-21 turvey
US2173082A (en) * 1935-09-27 1939-09-12 Westinghouse Electric & Mfg Co Refrigeration apparatus
US2253365A (en) * 1938-11-26 1941-08-19 Westinghouse Electric & Mfg Co Control system
US2917081A (en) * 1955-12-02 1959-12-15 Barton Instr Corp Vented seal
US3034357A (en) * 1959-07-15 1962-05-15 George T Brown Fluid pressure operated devices
US3240065A (en) * 1961-07-05 1966-03-15 Taber Instr Corp Differential pressure transducer
US3393612A (en) * 1966-05-12 1968-07-23 Dresser Ind Pressure responsive device
US3566060A (en) * 1968-06-07 1971-02-23 F W Dwyer Mfg Co Inc Pressure responsive switch with improved diaphragm operating means
US3626813A (en) * 1970-07-23 1971-12-14 Robertshaw Controls Co Differential pressure cell
US3751988A (en) * 1971-03-30 1973-08-14 Mary Catholeene Reese Differential pressure responsive device
US3859484A (en) * 1973-09-10 1975-01-07 Robert E Nelson Cyclic pressure switch with plural diaphrams

Also Published As

Publication number Publication date
US3946176A (en) 1976-03-23
GB1515178A (en) 1978-06-21
DE2553327A1 (de) 1976-06-10
BR7507841A (pt) 1976-08-24
DE2553327C2 (de) 1984-03-22
FR2293780B1 (it) 1981-09-04
CA1039780A (en) 1978-10-03
JPS5171971A (en) 1976-06-22
JPS541026B2 (it) 1979-01-19
FR2293780A1 (fr) 1976-07-02

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