GB143544A - Improvements in air pumps - Google Patents
Improvements in air pumpsInfo
- Publication number
- GB143544A GB143544A GB13710/20A GB1371020A GB143544A GB 143544 A GB143544 A GB 143544A GB 13710/20 A GB13710/20 A GB 13710/20A GB 1371020 A GB1371020 A GB 1371020A GB 143544 A GB143544 A GB 143544A
- Authority
- GB
- United Kingdom
- Prior art keywords
- barrel
- pump
- washer
- piston
- expander
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B33/00—Pumps actuated by muscle power, e.g. for inflating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Closures For Containers (AREA)
Abstract
143,544. Andrews, L. A. Oct. 26, 1914, [Convention date]. Portable hand pumps.-To maintain in operative condition the piston washer of air-pumps which are particularly suitable for inflating tyres, the washer is expanded at the end of each stroke to a diameter greater than that of the pump barrel. Thus, an enlarged space 2, Fig. 1, is provided into which the piston washer 3 enters as it passes over the expander 5. In the case of a double-acting pump, an enlargement with expander is provided at both ends of the barrel. Fig. 3 shows a doublebarrelled pump in which each piston is expanded in the enlarged end of its barrel. The stuffing- box is packed by the rubber double-cone 32 which is compressed by a screw cap 31.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US143544XA | 1914-10-26 | 1914-10-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB143544A true GB143544A (en) | 1920-12-16 |
Family
ID=21764979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13710/20A Expired GB143544A (en) | 1914-10-26 | 1920-05-18 | Improvements in air pumps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB143544A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE742293C (en) * | 1940-11-13 | 1943-11-26 | Otto Bothe | Double-acting hand air pump |
FR2432104A1 (en) * | 1978-07-28 | 1980-02-22 | Poutrait Morin Ets | Two stage hand operated pump - has low pressure cylinder leading high pressure delivery cylinder, which are charged on down and up strokes respectively |
WO2008025391A2 (en) | 2006-06-07 | 2008-03-06 | Nvb International Ltd | A piston-chamber combination |
-
1920
- 1920-05-18 GB GB13710/20A patent/GB143544A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE742293C (en) * | 1940-11-13 | 1943-11-26 | Otto Bothe | Double-acting hand air pump |
FR2432104A1 (en) * | 1978-07-28 | 1980-02-22 | Poutrait Morin Ets | Two stage hand operated pump - has low pressure cylinder leading high pressure delivery cylinder, which are charged on down and up strokes respectively |
WO2008025391A2 (en) | 2006-06-07 | 2008-03-06 | Nvb International Ltd | A piston-chamber combination |
WO2008025391A3 (en) * | 2006-06-07 | 2008-09-18 | Nvb Internat Ltd | A piston-chamber combination |
US20090272262A1 (en) * | 2006-06-07 | 2009-11-05 | Nvb International Uk Ltd. | Piston-Chamber Combination |
US8272316B2 (en) * | 2006-06-07 | 2012-09-25 | Nvb International Uk Ltd. | Piston-chamber combination |
TWI425146B (en) * | 2006-06-07 | 2014-02-01 | Nvb Internat Ltd | A piston-chamber combination |
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