Element pressing mechanism for dry chemical analysis element car

Details Element pressing mechanism for dry chemical analysis element car Element pressing mechanism for dry chemical analysis element car

1996-02-06

1997-10-07

Noland, Kenneth

Article dispensing

With discharge assistant

Plural or combined with manipulating means

221232, B65H 108

Patent

active

056738145

ABSTRACT:
In a chemical analysis element cartridge, chemical analysis element pressing mechanism is inserted into a cartridge body to press a stack of chemical analysis elements in the cartridge body toward an element take-out port formed in one end of the cartridge body. The element pressing mechanism includes a stopper to be engaged with an engagement teeth formed on an inner wall surface of the cartridge body and a pressing member which presses the stack of the chemical analysis elements toward the element take-out port under the force of a coiled spring. The stopper has a slider member which is slidable relative to a shaft portion of the pressing member and the coiled spring is disposed around the slider member with its one end in abutment against the pressing member and its the other end retained by a spring retainer portion formed on one end of the slider member. A bulged portion on the outer surface of the slider member aligns an effective center of an envelope defined by the end of the coiled spring with the effective center of the spring retainer portion.

REFERENCES:
patent: 4187077 (1980-02-01), Covington et al.
patent: 5056764 (1991-10-01), Mochizuki
patent: 5271896 (1993-12-01), Jakubowicz et al.

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