Trigger tool handle switch with structural dust seal

Details Trigger tool handle switch with structural dust seal Trigger tool handle switch with structural dust seal

1984-08-02

1986-02-04

Marcus, Stephen

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

200304, 200157, H01H 1306

Patent

active

045688079

ABSTRACT:
A molded insulating switch housing (2) has a rectangular opening (2a) in an end wall thereof through which an actuator (4) having a rectangular cross-sectional shape extends for linear reciprocable movement and is biased to an extended position with respect to the housing. A trigger operator member (6) is affixed to the outer end of the actuator (4) and has a recess (6b) open toward the end wall of the housing (2). A continuous rectangular flange (2b) surrounds the opening (2a) in the end wall and is telescopically received within the recess (6b) of the trigger operator (6) to form a dust and foreign contaminant material seal for the switch. Lateral edges (2d) of the switch housing at the end wall containing the opening for the actuator extend beyond the end wall and are provided with openings (2e) that have one edge coextensive with the end wall for removing dust and other contaminant materials which may be slid against the housing end wall by movement of the trigger (6) along the outer surfaces of the flange (2b).

REFERENCES:
patent: 1907688 (1933-05-01), Von Henke
patent: 2430064 (1947-11-01), Lawson
patent: 3093715 (1963-06-01), Kaneko
patent: 3360627 (1967-12-01), Wessel
patent: 3775576 (1973-11-01), Brown
patent: 3778577 (1973-12-01), Fromknecht et al.
patent: 4241297 (1980-12-01), Piber et al.

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