GB1499325A - Pump assembly for an atomizing piston pump - Google Patents

Pump assembly for an atomizing piston pump

Info

Publication number
GB1499325A
GB1499325A GB13789/74A GB1378974A GB1499325A GB 1499325 A GB1499325 A GB 1499325A GB 13789/74 A GB13789/74 A GB 13789/74A GB 1378974 A GB1378974 A GB 1378974A GB 1499325 A GB1499325 A GB 1499325A
Authority
GB
United Kingdom
Prior art keywords
piston
valve
pumping chamber
spring
stem
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
GB13789/74A
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.)
Consort Medical PLC
Original Assignee
Bespak Industries 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
Application filed by Bespak Industries Ltd filed Critical Bespak Industries Ltd
Priority to GB13789/74A priority Critical patent/GB1499325A/en
Priority to ZA00751676A priority patent/ZA751676B/en
Priority to CA222,843A priority patent/CA1008825A/en
Priority to AU79524/75A priority patent/AU493585B2/en
Priority to FR7509400A priority patent/FR2265462A1/en
Priority to AR258123A priority patent/AR211688A1/en
Priority to ES436066A priority patent/ES436066A1/en
Priority to IT48787/75A priority patent/IT1032456B/en
Priority to DE19752513766 priority patent/DE2513766A1/en
Priority to JP50037694A priority patent/JPS50133504A/ja
Priority to PL1975179166A priority patent/PL111882B1/en
Publication of GB1499325A publication Critical patent/GB1499325A/en
Priority to US05/879,521 priority patent/US4147476A/en
Expired legal-status Critical Current

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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/14—Pumps characterised by muscle-power operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1097—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle with means for sucking back the liquid or other fluent material in the nozzle after a dispensing stroke

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

1499325 Reciprocating pumps BESPAK INDUSTRIES Ltd 29 March 1975 [28 March 1974 23 July 1974] 13789/74 and 32462/74 Heading F1A A container-mounted atomizer pump comprises two coaxial cylinders 15, 16 of different effective cross-sectional areas and respective bucket pistons 22, 50 defining between them a pumping chamber, depression of an actuator button 28 moving piston 22 downwardly and the pressure developed in the pumping chamber moving piston 50 downwardly against spring 59, the stroke of piston 50 being greater than that of piston 22 due to the smaller effective cross-sectional area of piston 50 which slides on a fixed projection 14 in cylinder 16. Valve 35 in piston 22 has a stem 37 which engages projection 14 during the downward stroke to open valve 35, discharge then taking place from the pumping chamber via valve 35 and nozzle 30, piston 50 being moved upwardly by spring 59. On release of button 28, valve 35 remains open during initial upward movement of pistons 22, 50 by spring 59, causing liquid in nozzle 30 to be sucked back into the pumping chamber. Valve 35 closes when stem 37 moves away from projection 14, and liquid is then drawn from the container via dip tube 18, ports 19 and the lip 51 of piston 50. The container is vented via port 13. In Fig. 2 (not shown), the upper piston (122) has a valve-member (137) on a stem (135) with transverse fingers (148, 149) which, during downward movement of the piston (122) engage a step (161) between coaxial cylinders of different diameters housing the upper and lower pistons, thereby opening the valve for discharge to take place. The lower, spring-loaded piston (150) has a through passage controlled by a valve (153).
GB13789/74A 1974-03-28 1974-03-28 Pump assembly for an atomizing piston pump Expired GB1499325A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
GB13789/74A GB1499325A (en) 1974-03-28 1974-03-28 Pump assembly for an atomizing piston pump
ZA00751676A ZA751676B (en) 1974-03-28 1975-03-18 Pump assembly for an atomizing piston pump
CA222,843A CA1008825A (en) 1974-03-28 1975-03-20 Pump assembly for an atomizing piston pump
AR258123A AR211688A1 (en) 1974-03-28 1975-03-26 A PUMP ASSEMBLY
FR7509400A FR2265462A1 (en) 1974-03-28 1975-03-26 Atomiser pump with piston and spring-loaded opposed member - has spring-loaded outlet valve opened by pre-determined depression of piston
AU79524/75A AU493585B2 (en) 1975-03-26 Pump assembly foran atomizing piston pump
ES436066A ES436066A1 (en) 1974-03-28 1975-03-26 Pump assembly for an atomizing piston pump
IT48787/75A IT1032456B (en) 1974-03-28 1975-03-26 IMPROVEMENT IN NEBULIZER PUMPS
DE19752513766 DE2513766A1 (en) 1974-03-28 1975-03-27 PUMP FOR AN ATOMIZER
JP50037694A JPS50133504A (en) 1974-03-28 1975-03-27
PL1975179166A PL111882B1 (en) 1974-03-28 1975-03-28 Pumping unit for spraying piston pump
US05/879,521 US4147476A (en) 1974-03-28 1978-02-21 Pump assembly for an atomizing piston pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13789/74A GB1499325A (en) 1974-03-28 1974-03-28 Pump assembly for an atomizing piston pump

Publications (1)

Publication Number Publication Date
GB1499325A true GB1499325A (en) 1978-02-01

Family

ID=10029408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13789/74A Expired GB1499325A (en) 1974-03-28 1974-03-28 Pump assembly for an atomizing piston pump

Country Status (2)

Country Link
GB (1) GB1499325A (en)
ZA (1) ZA751676B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU604769B2 (en) * 1986-10-24 1991-01-03 Bespak Plc A non throttling discharge pump assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU604769B2 (en) * 1986-10-24 1991-01-03 Bespak Plc A non throttling discharge pump assembly

Also Published As

Publication number Publication date
ZA751676B (en) 1976-10-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee