GB811818A - Improvements in or relating to pressure-operated electric switches - Google Patents

Improvements in or relating to pressure-operated electric switches

Info

Publication number
GB811818A
GB811818A GB1202257A GB1202257A GB811818A GB 811818 A GB811818 A GB 811818A GB 1202257 A GB1202257 A GB 1202257A GB 1202257 A GB1202257 A GB 1202257A GB 811818 A GB811818 A GB 811818A
Authority
GB
United Kingdom
Prior art keywords
pressure
relating
improvements
electric switches
operated electric
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
GB1202257A
Inventor
Rudolf Beck
Joseph F Engelberger
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.)
Manning Maxwell and Moore Inc
Original Assignee
Manning Maxwell and Moore Inc
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 Manning Maxwell and Moore Inc filed Critical Manning Maxwell and Moore Inc
Priority to GB1202257A priority Critical patent/GB811818A/en
Publication of GB811818A publication Critical patent/GB811818A/en
Application status is Expired legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00Switches operated by change of a physical condition
    • H01H35/24Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/34Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm

Abstract

811,818. Diaphragm pistons. MANNING, MAXWELL & MOORE Inc. April 12, 1957, No. 12022/57. Drawings to Specification. Class 122 (1). [Also in Group XXXVII] A piston-diaphragm used to actuate an electric switch (see Group XXXVII) on fluidpressure increase, comprises a layer of tetrafluoroethylene on the pressure side, face-toface with a layer of glass fabric coated with tetrafluoroethylene.
GB1202257A 1957-04-12 1957-04-12 Improvements in or relating to pressure-operated electric switches Expired GB811818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1202257A GB811818A (en) 1957-04-12 1957-04-12 Improvements in or relating to pressure-operated electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1202257A GB811818A (en) 1957-04-12 1957-04-12 Improvements in or relating to pressure-operated electric switches

Publications (1)

Publication Number Publication Date
GB811818A true GB811818A (en) 1959-04-15

Family

ID=9996995

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1202257A Expired GB811818A (en) 1957-04-12 1957-04-12 Improvements in or relating to pressure-operated electric switches

Country Status (1)

Country Link
GB (1) GB811818A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383003A1 (en) * 1977-03-11 1978-10-06 Burkert Gmbh Method for manufacturing a SEAL in polytetrafluoroethylene and for securing it to a support
GB2252673A (en) * 1991-01-28 1992-08-12 Dwyer Instr In field settable differential pressure switch assembly
DE4231927A1 (en) * 1992-09-24 1994-03-31 Hydac Technology Gmbh Elastic, gas-tight membrane for use in pressure accumulators - comprises polyester base film, esp. PET, coated on one or both sides with layer of crosslinked polysiloxane
DE29708673U1 (en) * 1997-05-15 1997-08-21 Filtertek Bv Pressure transmitter
US6932110B2 (en) 2002-05-03 2005-08-23 Filtertek Inc. Unidirectional valve appliance
US7673653B2 (en) 2004-06-17 2010-03-09 Filtertek Inc. Check valve
US7717116B2 (en) 2004-06-07 2010-05-18 Filtertek Inc. Apparatus for connecting a respiratory device with a patient

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383003A1 (en) * 1977-03-11 1978-10-06 Burkert Gmbh Method for manufacturing a SEAL in polytetrafluoroethylene and for securing it to a support
GB2252673A (en) * 1991-01-28 1992-08-12 Dwyer Instr In field settable differential pressure switch assembly
GB2252673B (en) * 1991-01-28 1994-11-16 Dwyer Instr In field settable differential pressure switch assembly for fluid pressure applications
DE4231927A1 (en) * 1992-09-24 1994-03-31 Hydac Technology Gmbh Elastic, gas-tight membrane for use in pressure accumulators - comprises polyester base film, esp. PET, coated on one or both sides with layer of crosslinked polysiloxane
DE4231927C2 (en) * 1992-09-24 1998-07-02 Hydac Technology Gmbh Plastic diaphragm for pressure accumulator
DE29708673U1 (en) * 1997-05-15 1997-08-21 Filtertek Bv Pressure transmitter
US6168653B1 (en) 1997-05-15 2001-01-02 Filtertek, Inc Pressure transmission apparatus
US6506237B2 (en) 1997-05-15 2003-01-14 Filtertek Inc. Pressure transmission apparatus
US6932110B2 (en) 2002-05-03 2005-08-23 Filtertek Inc. Unidirectional valve appliance
US7717116B2 (en) 2004-06-07 2010-05-18 Filtertek Inc. Apparatus for connecting a respiratory device with a patient
USRE43886E1 (en) 2004-06-07 2013-01-01 Illinois Tool Works Inc. Apparatus for connecting a respiratory device with a patient
US7673653B2 (en) 2004-06-17 2010-03-09 Filtertek Inc. Check valve

Similar Documents

Publication Publication Date Title
GB1004271A (en) Flexible absorbent sheet
CA1006211A (en) Keyboard switch assembly with improved hermetically sealed diaphragm contact structure
GB939016A (en) Corneal contact lens
GB954362A (en) Improvements relating to electrical selector switches
GB848995A (en) Improvements in fluid pressure systems and apparatus
CA956715A (en) Electrical coupling with pressure contacts and multiple conductance paths
JPS5284185A (en) Pressure affinity membrane
CA966182A (en) Switch having opposed dome and flexible bifurcated contacts
CA938969A (en) Actuator for elastic diaphragm switch keyboard
GB568734A (en) Improvements in and relating to hydraulic presses
CA1002090A (en) Pressure controlled diaphragm operated switch
CA1034676A (en) Sump pump system and pressure responsive switch assembly therefor
GB848538A (en) Improvements relating to electric switches
CA947835A (en) Composite d.c. amplifier for use with a touch sensitive electronic switch
AU3632778A (en) Pressure sensitive composite articles
DE3624666A1 (en) Electrical diaphragm (membrane) switch
GB1132879A (en) Improvements in or relating to electric pressure-sensitive switches
CA923530A (en) Pressure sensitive switch assembly
CA1003015A (en) Pressure switch
GB903286A (en) An electric disconnecting switch
GB608669A (en) Improvements in fluid pressure operated switches
GB1024533A (en) Brake
GB1537492A (en) Diaphragms
GB1375494A (en)
GB831874A (en) Improvements in sealing washers