Sealing foil breaker for analyzer test cups

Details Sealing foil breaker for analyzer test cups Sealing foil breaker for analyzer test cups

1987-05-21

1988-08-16

Culver, Horace M.

Package making

Means to open or erect receptacle

Means to open envelope

30366, 30402, 83660, 414412, B67B 752, B26F 118

Patent

active

047634600

ABSTRACT:
A reciprocable vertical shafts 21 has a pyramid shaped lower tip for piercing a sealing foil 8d secured across the top of an analyzer test cup containing an active substance. The edges of the pyramid divide the foil into triangular segments which are pressed against the inner wall of the cup by the cylindrical root portion of the shaft such that they do not engage any of the active substance or interfere with subsequent injections into or withdrawals from the cup.

REFERENCES:
patent: 1689047 (1928-10-01), Packer
patent: 1962415 (1934-06-01), Taccard
patent: 2060888 (1936-11-01), Newman
patent: 2390309 (1945-12-01), Keys
patent: 2603858 (1952-07-01), Bruce et al.
patent: 3477317 (1969-11-01), Liander
patent: 3487965 (1970-01-01), Gale
patent: 3559445 (1971-02-01), Hougen
patent: 3739471 (1973-06-01), Peres
patent: 3775829 (1973-12-01), Rice
patent: 4176567 (1979-12-01), Weisberg

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