JPS6466476A - Reciprocal motion switching device for pump - Google Patents
Reciprocal motion switching device for pumpInfo
- 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
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.
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)
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)
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 |
-
1987
- 1987-09-08 JP JP62224631A patent/JP2706688B2/en not_active Expired - Fee Related
Patent Citations (2)
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)
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 |