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Title: Alarm toe switch

Abstract

An alarm toe switch inserted within a shoe for energizing an alarm circuit n a covert manner includes an insole mounting pad into which a miniature reed switch is fixedly molded. An elongated slot perpendicular to the reed switch is formed in the bottom surface of the mounting pad. A permanent cylindrical magnet positioned in the forward portion of the slot with a diameter greater than the pad thickness causes a bump above the pad. A foam rubber block is also positioned in the slot rearwardly of the magnet and holds the magnet in normal inoperative relation. A non-magnetic support plate covers the slot and holds the magnet and foam rubber in the slot. The plate minimizes bending and frictional forces to improve movement of the magnet for reliable switch activation. The bump occupies the knuckle space beneath the big toe. When the big toe is scrunched rearwardly the magnet is moved within the slot relative to the reed switch, thus magnetically activating the switch. When toe pressure is released the foam rubber block forces the magnet back into normal inoperative position to deactivate the reed switch. The reed switch is hermetically sealed with the magnet acting through the wallmore » so the switch assembly S is capable of reliable operation even in wet and corrosive environments.

Inventors:
 [1]
  1. Albuquerque, NM
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
864344
Patent Number(s):
4350853
Assignee:
United States of America as represented by Department of Energy (Washington, DC)
Patent Classifications (CPCs):
A - HUMAN NECESSITIES A43 - FOOTWEAR A43B - CHARACTERISTIC FEATURES OF FOOTWEAR
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01H - ELECTRIC SWITCHES
DOE Contract Number:  
AC04-76
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
alarm; toe; switch; inserted; shoe; energizing; circuit; covert; manner; insole; mounting; pad; miniature; reed; fixedly; molded; elongated; slot; perpendicular; formed; bottom; surface; permanent; cylindrical; magnet; positioned; forward; portion; diameter; thickness; causes; bump; foam; rubber; block; rearwardly; holds; normal; inoperative; relation; non-magnetic; support; plate; covers; minimizes; bending; frictional; forces; improve; movement; reliable; activation; occupies; knuckle; space; beneath; scrunched; moved; relative; magnetically; activating; pressure; released; position; deactivate; hermetically; sealed; acting; wall; assembly; capable; operation; wet; corrosive; environments; switch assembly; corrosive environment; hermetically sealed; bottom surface; support plate; reed switch; switch activation; foam rubber; corrosive environments; elongated slot; toe switch; hermetically seal; frictional forces; operative relation; alarm toe; /200/36/335/340/

Citation Formats

Ganyard, Floyd P. Alarm toe switch. United States: N. p., 1982. Web.
Ganyard, Floyd P. Alarm toe switch. United States.
Ganyard, Floyd P. Fri . "Alarm toe switch". United States. https://www.osti.gov/servlets/purl/864344.
@article{osti_864344,
title = {Alarm toe switch},
author = {Ganyard, Floyd P},
abstractNote = {An alarm toe switch inserted within a shoe for energizing an alarm circuit n a covert manner includes an insole mounting pad into which a miniature reed switch is fixedly molded. An elongated slot perpendicular to the reed switch is formed in the bottom surface of the mounting pad. A permanent cylindrical magnet positioned in the forward portion of the slot with a diameter greater than the pad thickness causes a bump above the pad. A foam rubber block is also positioned in the slot rearwardly of the magnet and holds the magnet in normal inoperative relation. A non-magnetic support plate covers the slot and holds the magnet and foam rubber in the slot. The plate minimizes bending and frictional forces to improve movement of the magnet for reliable switch activation. The bump occupies the knuckle space beneath the big toe. When the big toe is scrunched rearwardly the magnet is moved within the slot relative to the reed switch, thus magnetically activating the switch. When toe pressure is released the foam rubber block forces the magnet back into normal inoperative position to deactivate the reed switch. The reed switch is hermetically sealed with the magnet acting through the wall so the switch assembly S is capable of reliable operation even in wet and corrosive environments.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}