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US 2019/0103013 A1Published application
Alarm pull station having a removable actuator cover
AssigneeSiemens Schweiz AG
InventorsRichard Kriete, Stavros Zavros, Anthony Pascale
Life of this patent
Estimating the term…
Abstract
An alarm pull station having a removable actuator cover and an actuator switch operatively coupled to the actuator cover to signal when the pull station is a normal mode, an alarm mode, or a maintenance mode corresponding to when the cover has been removed.
Claims17
An alarm pull station, comprising:
- a mounting base having a mounting surface, a tab extending from the base, and a cam rotatable to a plurality of pre-determined cam positions about an axis substantially perpendicular to the mounting surface;
- an actuator switch having a plunger and a biasing device coupled to the plunger to bias the plunger in a direction towards the cam;
- and
- a cover having a lower protuberance to selectively engage the plunger to bias the cover in a direction towards the cam, an upper protuberance disposed above the lower protuberance to selectively engage the cam when the cam is rotated to a first cam position or to a second cam position, and a flange disposed to slidingly engage the tab on the base to selectively retain the cover to the mounting base in cooperation with the plunger biasing the lower protuberance of the cover and the cam engages the upper protuberance of the cover.
1 more element
Dependencies are inferred from the claim text.