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Heat Shrinkable Tubing for Module

IP.com Disclosure Number: IPCOM000091552D
Original Publication Date: 1968-Mar-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Redmond, RJ: AUTHOR

Abstract

Heat shrinkable tubing can be used to make normally closed, reed switch modules. Reed switches 11 and 11' are spaced apart by magnet 13 which is located central to glass envelopes 15 and 15' of each switch. A thin wall plastic tubing 17, made of a heat shrinkable material such as polyvinylidene fluoride, is positioned around reed switches 11 and 11' and magnet 13. Tubing 17 is then shrunk by application of heat. The use of heat shrinkable tubing provides a technique for positioning reed switches and magnets in a predetermined operative relationship. If rework is necessary, damage to the reed switches or magnets is prevented, since the heat shrinkable tubing can be easily removed by slitting. This module is inserted into a bobbin having an electrical coil wound on it, to realize a normally closed reed relay.

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Heat Shrinkable Tubing for Module

Heat shrinkable tubing can be used to make normally closed, reed switch modules. Reed switches 11 and 11' are spaced apart by magnet 13 which is located central to glass envelopes 15 and 15' of each switch. A thin wall plastic tubing 17, made of a heat shrinkable material such as polyvinylidene fluoride, is positioned around reed switches 11 and 11' and magnet 13. Tubing 17 is then shrunk by application of heat. The use of heat shrinkable tubing provides a technique for positioning reed switches and magnets in a predetermined operative relationship. If rework is necessary, damage to the reed switches or magnets is prevented, since the heat shrinkable tubing can be easily removed by slitting. This module is inserted into a bobbin having an electrical coil wound on it, to realize a normally closed reed relay.

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