GB1288573A - - Google Patents

Info

Publication number
GB1288573A
GB1288573A GB1288573DA GB1288573A GB 1288573 A GB1288573 A GB 1288573A GB 1288573D A GB1288573D A GB 1288573DA GB 1288573 A GB1288573 A GB 1288573A
Authority
GB
United Kingdom
Prior art keywords
vacuum
piston
spring
rod
neward
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
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 filed Critical
Publication of GB1288573A publication Critical patent/GB1288573A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/16—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Measuring Fluid Pressure (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

1288573 Pressure gauges T C NEWARD 11 Sept 1969 [3 March 1969] 44962/69 Heading G1L [Also in Division F1] A vacuum pump is fitted with a vacuum indicator 11 in the form of a spring-loaded rod 57 having a piston 60 sealingly slidable in a housing 56. As the vacuum increases the piston 60 is sucked in against the action of a spring 62, a scale on the rod 57 indicating the degree of vacuum.
GB1288573D 1969-03-03 1969-09-11 Expired GB1288573A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80385469A 1969-03-03 1969-03-03

Publications (1)

Publication Number Publication Date
GB1288573A true GB1288573A (en) 1972-09-13

Family

ID=25187611

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1288573D Expired GB1288573A (en) 1969-03-03 1969-09-11

Country Status (7)

Country Link
US (1) US3612722A (en)
JP (1) JPS4911644B1 (en)
CA (1) CA944330A (en)
DE (1) DE2002239A1 (en)
FR (1) FR2034603A1 (en)
GB (1) GB1288573A (en)
SE (1) SE363378B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363827A (en) * 2000-03-01 2002-01-09 Body Images Ltd Hand operated vacuum pump

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145960A (en) * 1974-10-16 1976-04-19 Chubu Electric Power Zofukukino kanshisochi
JPS51121237A (en) * 1975-04-17 1976-10-23 Nippon Denso Co Ltd A transistor protection circuit against overload
CH612349A5 (en) * 1977-10-21 1979-07-31 Schneider Medintag Ag
GB2008200B (en) * 1977-11-09 1982-10-20 Emerit Andre A C Source of vacuum and device for creating and maintaining anegative pressure in an enclosure
DE3020534A1 (en) * 1980-05-30 1981-12-03 Willi 2906 Wardenburg Backenköhler HOUSEHOLD EVACUATION DEVICE
US4432701A (en) * 1981-04-07 1984-02-21 Yoji Ise Vacuum controlling device
US4422831A (en) * 1981-11-02 1983-12-27 Bender Machine Works, Inc. Pump
US4565506A (en) * 1984-03-13 1986-01-21 Lisle Corporation Hand operated vacuum pump
US4775302A (en) * 1984-12-20 1988-10-04 Neward Theodore C Hand-held vacuum and pressure pump
US4806084A (en) * 1984-12-20 1989-02-21 Neward Theodore C Hand-held vacuum pump
US4954054A (en) * 1986-09-08 1990-09-04 Neward Theodore C Hand-held vacuum and pressure pump
US4775300A (en) * 1987-03-20 1988-10-04 Danfoss A/S Heating oil pump for selective single or double line operation
US4858478A (en) * 1988-08-16 1989-08-22 Mine Safety Appliances Company Bellows type hand-operated air sampling pump
US4985181A (en) * 1989-01-03 1991-01-15 Newa S.R.L. Centrifugal pump especially for aquariums
US5011381A (en) * 1989-09-22 1991-04-30 Neward Theodore C Hand-held vacuum pump vacuum release
US4979883A (en) * 1989-09-27 1990-12-25 Neward Theodore C Vacuum limiter for pump
US5205726A (en) * 1991-07-03 1993-04-27 Neward Theodore C Tubing remover
US5277557A (en) * 1993-01-11 1994-01-11 Cooper Richard N Hand-held and hand-operated vacuum pump
US5478216A (en) * 1993-09-08 1995-12-26 Neward; Theodore C. Vacuum limiter for pump
US6059795A (en) * 1998-05-08 2000-05-09 Clinical Innovations Maneuverable fetal vacuum extraction for use with malpresenting fetus
US6355047B1 (en) 1998-05-08 2002-03-12 Clinical Innovations Traction force sensing vacuum extractor
US6074399A (en) * 1998-05-08 2000-06-13 Clinical Innovations Hand-held fetal vacuum extractor having an integrated pump and handle
US6499385B2 (en) 2001-03-01 2002-12-31 Innova Electronics Corporation Hand vacuum pump with linear piston actuation
US20050205824A1 (en) * 2004-03-18 2005-09-22 Osborne Charles A Segmented ball control valve with universal end connections
US20070122301A1 (en) * 2005-11-30 2007-05-31 Werner Schlecht Drywall mud pump
US7789638B2 (en) * 2006-05-12 2010-09-07 Louis Chuang Pump for providing three modes of pumping
US8105058B2 (en) * 2007-11-16 2012-01-31 Cinta Tools Llc Drywall mud pump with improved connection between the piston and the rod
US10271716B2 (en) * 2008-06-27 2019-04-30 C.R. Bard, Inc. Endoscopic vacuum controller
US8052402B2 (en) * 2008-10-20 2011-11-08 Lincoln Industrial Corporation Hand operated pump
US20100260879A1 (en) * 2009-03-20 2010-10-14 Schlecht Werner L Tool for dispensing drywall joint compound
IT1395965B1 (en) * 2009-06-30 2012-11-02 F A C E M S P A IMPROVEMENTS IN THE VACUUM PACKAGING IN CONTAINERS PROVIDED WITH A HERMETIC CLOSING LID
US20110189039A1 (en) * 2010-02-01 2011-08-04 CINTA Tools Inc. Drywall mud pump with improved handle
US20110189038A1 (en) * 2010-02-01 2011-08-04 CINTA Tools Inc. Drywall mud pump with clamp or improved foot valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363827A (en) * 2000-03-01 2002-01-09 Body Images Ltd Hand operated vacuum pump

Also Published As

Publication number Publication date
FR2034603A1 (en) 1970-12-11
JPS4911644B1 (en) 1974-03-19
CA944330A (en) 1974-03-26
SE363378B (en) 1974-01-14
US3612722A (en) 1971-10-12
DE2002239A1 (en) 1970-09-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years