Title:
LIQUID DELIVERY PUMP
Document Type and Number:
Japanese Patent JP3728827
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid delivery pump which does not require removal of the return spring when disassembling or assembling and permits an easy replacement of the plunger assembly too.
SOLUTION: A plunger assembly 7 disposed within a pump head 1 and a head holder 5 is composed of a plunger rod 7a, a collar part 7b and a thread part 7c. Within an interior space which is formed when the head holder 5 is coupled to a housing 6 is disposed a return spring 8 which biases the plunger assembly 7. The return spring 8 is biasedly supported by the head holder 5 and a crosshead 9. A thread part 9b of the crosshead 9 is separatably and threadedly engaged with a thread portion 7c of the plunger assembly.
Inventors:
Yoshiaki Aso
Application Number:
JP25840696A
Publication Date:
December 21, 2005
Filing Date:
September 30, 1996
Export Citation:
Assignee:
SHIMADZU CORPORATION
International Classes:
F04B19/22; F04B9/04; F04B53/14; F04B53/22; (IPC1-7): F04B9/04
Domestic Patent References:
JP8021352A | ||||
JP52138710A | ||||
JP5057370U |
Attorney, Agent or Firm:
河▲崎▼ 眞樹
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