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MAGNETICALLY ACTUATABLE REED SWITCH ASSEMBLY

  • US 3,622,926 A
  • Filed: 03/12/1970
  • Issued: 11/23/1971
  • Est. Priority Date: 03/12/1970
  • Status: Expired due to Term
First Claim
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1. A magnetically actuatable reed switch assembly to control the flow of electrical current between at least two distinctly separated reeds, said magnetically actuatable reed switch assembly comprising:

  • A. A pair of magnetically permeable flexible elongate electrically conductive reeds disposed in substantially colinear relationship along a longitudinal axis, said flexible reeds being normally separated by a finite spatial gap at a first reed free end, at least one of said reeds being sufficiently flexible that said reeds will be brought closer together when subjected to magnetic flux;

    B. A transversely C-shaped and transversely resiliently constrictable magnet means substantially surrounding said reeds, said magnet means being adapted to reciprocate along the longitudinal axis and including a first station therefor relatively remote from the first reed free end at which first station said reeds remain spatially separated and further including a second station therefor located nearer to said first reed free end at which said second station the magnetic flux of the said permanent magnet means diminishes the interreeds spatial gap, the first and second stations being longitudinally separated by a finite distance, said magnet means having two transverse ends of opposite magnetic polarities including a '"'"''"'"''"'"''"'"'North'"'"''"'"''"'"''"'"' pole and a '"'"''"'"''"'"''"'"'South'"'"''"'"''"'"''"'"' pole, and C-shaped magnet means under conditions of unrelieved constriction stresses being supported against the transverse floor plate of a transversely rigidly dimensioned longitudinally reciprocatable support means;

    C. A housing surrounding said longitudinally reciprocatable support means for the magnet means, said housing including a rearward end and an open forward end; and

    D. A pushbutton disposed within and extending forwardly from the housing open forward end, said pushbutton extending rearwardly into the housing and being longitudinally reciprocatably actuatably engaged with the support means, the longitudinal reciprocatability for the pushbutton being at least equal to said interstations finite distance.

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