JPS6466476A - Reciprocal motion switching device for pump - Google Patents

Reciprocal motion switching device for pump

Info

Publication number
JPS6466476A
JPS6466476A JP62224631A JP22463187A JPS6466476A JP S6466476 A JPS6466476 A JP S6466476A JP 62224631 A JP62224631 A JP 62224631A JP 22463187 A JP22463187 A JP 22463187A JP S6466476 A JPS6466476 A JP S6466476A
Authority
JP
Japan
Prior art keywords
fitted
spring
valve
piston
action
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
JP62224631A
Other languages
Japanese (ja)
Other versions
JP2706688B2 (en
Inventor
Minoru Murata
Kazumasa Yamada
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.)
Yamada Yuki Seizo Co Ltd
Original Assignee
Yamada Yuki Seizo Co Ltd
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 to JP62224631A priority Critical patent/JP2706688B2/en
Application filed by Yamada Yuki Seizo Co Ltd filed Critical Yamada Yuki Seizo Co Ltd
Priority to EP88904643A priority patent/EP0321573B1/en
Priority to US07/306,454 priority patent/US5002468A/en
Priority to DE3855689T priority patent/DE3855689T2/en
Priority to DE3855779T priority patent/DE3855779T2/en
Priority to EP92202050A priority patent/EP0508555B1/en
Priority to EP92202051A priority patent/EP0509616B1/en
Priority to DE88904643T priority patent/DE3882949T2/en
Priority to PCT/JP1988/000512 priority patent/WO1988009440A1/en
Publication of JPS6466476A publication Critical patent/JPS6466476A/en
Priority to US07/493,004 priority patent/US5002469A/en
Priority to US07/547,913 priority patent/US5120202A/en
Application granted granted Critical
Publication of JP2706688B2 publication Critical patent/JP2706688B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Compressor (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

PURPOSE:To reduce the number of parts and to ease the assembling work by providing a wire spring, which is formed into a letter-C shape, as a snap- action spring for valve switching. CONSTITUTION:A piston 21 is fitted to the inside of a cylinder body 11 in a freely slidable manner, while an engaging part 23 is threadedly engaged with the central part of the piston 21. A disc-shaped valve 31 is arranged under a valve-sheat installation part 14. In addition, a spring fitted part 41 is also formed under the valve-seat installation part 14 as an integrated body with the part 14. Recessed grooves 42 are provided at both sides facing this spring- fitted-part 41, and the back parts of a wire spring 43, which is formed into a letter-C shape for a snap action, are fitted into these grooves 42. A pump body 61 is threadedly engaged with the lower part of the cylinder body 11, and a plunger 52 performs a discharging action as the piston 21 goes down.
JP62224631A 1987-05-28 1987-09-08 Reciprocating motion switching device for pump Expired - Fee Related JP2706688B2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
JP62224631A JP2706688B2 (en) 1987-09-08 1987-09-08 Reciprocating motion switching device for pump
PCT/JP1988/000512 WO1988009440A1 (en) 1987-05-28 1988-05-27 Reciprocation switching structure for pumps
DE3855689T DE3855689T2 (en) 1987-05-28 1988-05-27 Floating circuit structure for pumps
DE3855779T DE3855779T2 (en) 1987-05-28 1988-05-27 Floating circuit structure for pump
EP92202050A EP0508555B1 (en) 1987-05-28 1988-05-27 Switching device for reciprocating pumps
EP92202051A EP0509616B1 (en) 1987-05-28 1988-05-27 Switching device for reciprocating pumps
EP88904643A EP0321573B1 (en) 1987-05-28 1988-05-27 Reciprocation switching structure for pumps
US07/306,454 US5002468A (en) 1987-05-28 1988-05-27 Switching device for reciprocating pumps
DE88904643T DE3882949T2 (en) 1987-05-28 1988-05-27 FLOATING CIRCUIT STRUCTURE FOR PUMP.
US07/493,004 US5002469A (en) 1987-05-28 1990-03-13 Switching device for reciprocating pumps
US07/547,913 US5120202A (en) 1987-05-28 1990-07-03 Switching device for reciprocating pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62224631A JP2706688B2 (en) 1987-09-08 1987-09-08 Reciprocating motion switching device for pump

Publications (2)

Publication Number Publication Date
JPS6466476A true JPS6466476A (en) 1989-03-13
JP2706688B2 JP2706688B2 (en) 1998-01-28

Family

ID=16816738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62224631A Expired - Fee Related JP2706688B2 (en) 1987-05-28 1987-09-08 Reciprocating motion switching device for pump

Country Status (1)

Country Link
JP (1) JP2706688B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5234351A (en) * 1992-12-07 1993-08-10 The Whitaker Corporation Memory card holder and ejection mechanism

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940805U (en) * 1972-07-13 1974-04-10
JPS60256571A (en) * 1984-05-16 1985-12-18 フロージエツト・コーポレーシヨン Fluid drive pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940805U (en) * 1972-07-13 1974-04-10
JPS60256571A (en) * 1984-05-16 1985-12-18 フロージエツト・コーポレーシヨン Fluid drive pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5234351A (en) * 1992-12-07 1993-08-10 The Whitaker Corporation Memory card holder and ejection mechanism

Also Published As

Publication number Publication date
JP2706688B2 (en) 1998-01-28

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees