Switch means for radio alarm device
First Claim
1. In a miniature alarm transmitter device adapted to be worn on the body of a person under the clothing:
- a battery, anda miniature radio transmitter built on a circuit board, said battery having a terminal at each of its opposite ends and extending generally parallel to one side portion of said board;
a pair of resilient metal spring contact and support members each secured to said side portion adjacent one of said terminals and having a contact portion extending generally outward opposite to one of said terminals;
a pair of ring-like resilient insulating spacers each positioned between each said contact portion and its adjacent said terminal,said spacers electrically separating both said contact portions and terminals and also supporting said battery by its said terminals from said members, andan outer housing in the form of a soft flexible bag enclosing both said battery and transmitter, whereby squeezing pressure through said outer housing simultaneously against both said support members toward each other is adapted to press both said contacts against their respective battery terminals to activate said transmitter.
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Accused Products
Abstract
In a miniature concealable radio alarm transmitter to be worn on the person, a switch means to activate the transmitter. The transmitter is preferably flat in shape, and includes a small battery which extends across the end of the circuit board. Two spring contact members extend adjacent each end of the battery, which has button-type terminals on its ends. A soft sponge elastomer spacer is fitted between each contact member and its end of the battery. The spacer has a central hole. Finger pressure against either spring member forces it toward the adjacent battery terminal to make contact therewith. To connect the battery to the circuit and energize the alarm transmitter, both spring members must be squeezed toward each other from opposite sides of the transmitter, making contact with each battery terminal. It is thus difficult to accidentally activate the transmitter. The switch means comprises two switches in series. The whole device is preferably cased in a bag-like enclosure of soft flexible material with a cord adapted to be hung around the wearer'"'"'s neck.
85 Citations
4 Claims
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1. In a miniature alarm transmitter device adapted to be worn on the body of a person under the clothing:
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a battery, and a miniature radio transmitter built on a circuit board, said battery having a terminal at each of its opposite ends and extending generally parallel to one side portion of said board; a pair of resilient metal spring contact and support members each secured to said side portion adjacent one of said terminals and having a contact portion extending generally outward opposite to one of said terminals; a pair of ring-like resilient insulating spacers each positioned between each said contact portion and its adjacent said terminal, said spacers electrically separating both said contact portions and terminals and also supporting said battery by its said terminals from said members, and an outer housing in the form of a soft flexible bag enclosing both said battery and transmitter, whereby squeezing pressure through said outer housing simultaneously against both said support members toward each other is adapted to press both said contacts against their respective battery terminals to activate said transmitter. - View Dependent Claims (2, 3, 4)
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Specification