Presses – Can crushers
Reexamination Certificate
2007-03-06
2007-03-06
Larson, Lowell A. (Department: 3725)
Presses
Can crushers
C100S049000, C100S214000, C100S218000, C100S282000, C100S295000
Reexamination Certificate
active
11220190
ABSTRACT:
An apparatus for crushing containers includes a die defining an opening, a punch, and a system for displacing the die and punch relative to each other. The punch may be fixed and the die may be moved from a first position spaced apart from the punch such that a container to be crushed can be placed between the punch and die and a second position in which the punch extends into the die opening to define an annular gap between the punch and die opening. The arrangement is such that a container crushed between the die and punch as a result of displacement of the die to the second position is at least in part forced into and deformed within the annular gap.
REFERENCES:
patent: 2700355 (1955-01-01), Erb
patent: 3086418 (1963-04-01), Levine
patent: 4817521 (1989-04-01), Katada et al.
patent: 5448946 (1995-09-01), Laux
patent: 24 14 402 (1975-10-01), None
patent: 102 09 244 (2003-09-01), None
patent: 02084300 (1990-03-01), None
patent: 11114957 (1999-04-01), None
patent: 2002192390 (2002-07-01), None
Francis Henry Lee
Larson Lowell A.
Michael & Best & Friedrich LLP
Nguyen Jimmy
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