Electricity: circuit makers and breakers – Multiple circuit control – Reciprocating contact
Reexamination Certificate
2005-03-01
2005-03-01
Friedhofer, Michael A. (Department: 2832)
Electricity: circuit makers and breakers
Multiple circuit control
Reciprocating contact
C200S01600R, C200S01600R
Reexamination Certificate
active
06861595
ABSTRACT:
A contact block assembly comprising a pusher having a body portion; a window formed in the body portion; a movable contact positioned within the window; a recess formed in the body portion; a first spring positioned within the recess and abutting the movable contact; and second spring positioned outside the pusher and abutting the movable contact is disclosed. A method of assembling a contact block assembly, the method comprising the steps of inserting a first spring into a recess in a pusher; inserting a movable contact within a window of the pusher and in contact with the first spring; and positioning a second spring outside the pusher and in contact with the movable contact.
REFERENCES:
patent: 4276458 (1981-06-01), Alter
patent: 4306123 (1981-12-01), Taylor
patent: 4401867 (1983-08-01), Grunst
patent: 6198058 (2001-03-01), Graninger et al.
patent: 6642823 (2003-11-01), Passow
patent: 6667448 (2003-12-01), Schaefer
patent: 6720510 (2004-04-01), Passow
Friedhofer Michael A.
Siemens Energy & Automation Inc.
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