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Apparatus for driving and controlling solenoid impact imprinter

  • US 5,453,821 A
  • Filed: 12/10/1992
  • Issued: 09/26/1995
  • Est. Priority Date: 11/23/1988
  • Status: Expired due to Term
First Claim
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1. A solenoid apparatus, comprising:

  • (a) a housing having a bore extending therethrough;

    (b) a shaft slidably disposed in the bore of the housing;

    (c) a solenoid coil secured within said housing;

    (d) a plunger attached to a first end of the shaft;

    (e) a dowel attached to the plunger; and

    (f) the housing including;

    (i) a first and second stack of laminations wherein laminations within said first and second stack are secured to adjacent laminations;

    (ii) alignment means for holding said first and second stack in alignment; and

    (iii) a center block having an alignment cavity, the center block disposed between the first and second stack of laminations;

    (iv) wherein all the laminations in the solenoid apparatus are immobile in said housing, and wherein the dowel is slidably disposed within the alignment cavity.

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