GB555326A - Improvements in or relating to valves and to pumps incorporating such valves - Google Patents

Improvements in or relating to valves and to pumps incorporating such valves

Info

Publication number
GB555326A
GB555326A GB186942A GB186942A GB555326A GB 555326 A GB555326 A GB 555326A GB 186942 A GB186942 A GB 186942A GB 186942 A GB186942 A GB 186942A GB 555326 A GB555326 A GB 555326A
Authority
GB
United Kingdom
Prior art keywords
valves
degrees
tubes
blocks
tube
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
GB186942A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB186942A priority Critical patent/GB555326A/en
Publication of GB555326A publication Critical patent/GB555326A/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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0042—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member
    • F04B7/0053—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member for reciprocating distribution members
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/082—Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/086—Machines, pumps, or pumping installations having flexible working members having tubular flexible members with two or more tubular flexible members in parallel
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
    • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
    • F16K7/06—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of a screw-spindle, cam, or other mechanical means

Landscapes

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

Abstract

555,326. Valves; pumps. HUBER, C J. Feb. 12, 1942, No. 1869. [Class 135] [Also in Group XXVI] A valve device particularly adapted for use in a pump used in blood transfusion apparatus comprises a tube of resilient compressible material and an inner member or core of the same crosssectional contour but of smaller cross-sectional area than the normal cross-sectional area of the tube together with mechanically operated means for compressing a portion of the wall of the tube into contact with the periphery of the inner member. The Figures show the valve used as inlet and outlet valves of a pump. The pump comprises a pair of elastic tubes 21, 22 secured at the ends to nipples 23 screwed into the end walls 13 of an outer casing and carrying cross pins 33a supporting inner core members 32, 33. Each tube is surrounded by three pairs of blocks slidably arranged between the base plate 11 and a removable cover plate 14. The outer blocks are adjustably held in place by set screws 37 while the inner blocks have hardened bearing members adapted to be engaged by a series of cams 48, 49, 50 on a power driven shaft arranged between the tubes. The inner faces of the blocks have curved recesses with a radius slightly less than the normal radius of the tube and subtending an angle of 45 degrees. These blocks also have recesses with inclined surfaces adapted to cooperate with similar surfaces on intermediate members 42 having curved faces also subtending an angle of approximately 45 degrees. The cams 48, 50 are shaped so as to hold the valves closed during one half of a revolution and to permit the valves to be opened fully for approximately one quarter of a revolution. The cams 49 are so shaped that they have no compressing effect through 180 degrees of revolution but gradually compress the tubes during 135 degrees followed by a somewhat abrupt release during the remaining 45 degrees. In a modification a single inner member extends from end to end of the tubes. The tubes may extend to the outside of the casing in place of being secured to nipples 23.
GB186942A 1942-02-12 1942-02-12 Improvements in or relating to valves and to pumps incorporating such valves Expired GB555326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB186942A GB555326A (en) 1942-02-12 1942-02-12 Improvements in or relating to valves and to pumps incorporating such valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB186942A GB555326A (en) 1942-02-12 1942-02-12 Improvements in or relating to valves and to pumps incorporating such valves

Publications (1)

Publication Number Publication Date
GB555326A true GB555326A (en) 1943-08-17

Family

ID=9729446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB186942A Expired GB555326A (en) 1942-02-12 1942-02-12 Improvements in or relating to valves and to pumps incorporating such valves

Country Status (1)

Country Link
GB (1) GB555326A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042153A (en) * 1973-03-14 1977-08-16 Standard Oil Company Liquid dropping device
EP2075468A1 (en) * 2007-12-24 2009-07-01 The Automation Partnership Pump
WO2010091682A1 (en) * 2009-02-11 2010-08-19 Gunter Krauss Peristaltic pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042153A (en) * 1973-03-14 1977-08-16 Standard Oil Company Liquid dropping device
EP2075468A1 (en) * 2007-12-24 2009-07-01 The Automation Partnership Pump
WO2010091682A1 (en) * 2009-02-11 2010-08-19 Gunter Krauss Peristaltic pump

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