Call switch for wet areas
First Claim
Patent Images
1. In a call switch for use in a wet area:
- a panel adapted to be mounted in the wet area with the front side of the panel exposed to the wet area and the rear side of the panel isolated from the wet area, a magnet mounted on the front side of the panel for movement between first and second positions, and means including a magnetically controlled switch mounted behind the panel for delivering an output signal when the magnet is in the second position, the panel forming a waterproof barrier between the magnet and the magnetically controlled switch.
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Accused Products
Abstract
Call switch for use by hospital patients and staff members to summon aid in wet areas such as shower and bath areas. An actuating magnet is positioned on the front side of a waterproof panel for controlling the operation of electronic circuitry mounted in a dry area behind the panel. The magnet is carried by a slide for movement between rest and tripped positions, and a pull cord is connected to the slide by a breakaway member which permits the cord to separate from the slide when a patient becomes entangled in the cord or the pull on the cord otherwise exceeds a predetermined limit.
33 Citations
15 Claims
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1. In a call switch for use in a wet area:
- a panel adapted to be mounted in the wet area with the front side of the panel exposed to the wet area and the rear side of the panel isolated from the wet area, a magnet mounted on the front side of the panel for movement between first and second positions, and means including a magnetically controlled switch mounted behind the panel for delivering an output signal when the magnet is in the second position, the panel forming a waterproof barrier between the magnet and the magnetically controlled switch.
- View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. In a call switch for use in a wet area such as a shower:
- a panel mounted over an opening in a wall of the wet area with the front side of the panel being exposed to the wet area, means forming a watertight seal between the panel and the wall such that the opening remains dry and isolated from the wet area, a slide mounted on the front side of the panel for movement between a rest position and a tripped position, a magnet carried by the slide, and means including a magnetically controlled switch mounted behind the panel in the opening for delivering an output signal when the slide is in the tripped position, the panel forming a waterproof barrier between the slide and the magnetically controlled switch.
- View Dependent Claims (9, 10, 11, 12)
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13. In a call switch for use in a wet area such as a shower:
- a panel mounted over an opening in a wall of the wet area with the front side of the panel being exposed to the wet area, means forming a watertight seal between the panel and the wall such that the opening remains dry and isolated from the wet area, a slide mounted on the front side of the panel for movement between a rest position and a tripped position, a magnet carried by the slide, means including a magnetically controlled switch mounted behind the panel in the opening for delivering an output signal when the slide is in the tripped position, a flexible card having peripheral edge portions which normally engage the slide, and a cord attached to the central portion of the card for moving the slide from the rest position to the tripped position when pulled, the flexibility of the card being such that the edge portions are drawn out of engagement with the slide when the pull on the cord exceeds a predetermined level.
- View Dependent Claims (14)
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15. In a call switch for use in a wet area such as a shower:
- a panel mounted over an opening in a wall of the wet area with the front side of the panel being exposed to the wet area, means forming a watertight seal between the panel and the wall such that the opening remains dry and isolated from the wet area, a slide mounted on the front side of the panel for movement between a rest position and a tripped position, a magnet carried by the slide, means including a magnetically controlled switch mounted behind the panel in the opening for delivering an output signal when the slide is in the tripped position, a pair of stationary posts attached to the plate, and a pair of flexible arms carried by the slide and engagable with the posts to releasably hold the slide in the rest position.
Specification