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Sash window brake

  • US 5,099,963 A
  • Filed: 10/15/1990
  • Issued: 03/31/1992
  • Est. Priority Date: 11/13/1989
  • Status: Expired due to Fees
First Claim
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1. A sash window brake comprising:

  • a main frame of a generally u-shaped configuration so as to have a pair of generally parallel co-extensive legs joined by a base, free ends of said legs including transversely outwardly facing brake pad areas, an internal ramp surface on each leg arranged so that the ramp surfaces converge away from said base, said frame being formed of resilient material so that said legs are resiliently transversely reflectable;

    a wedge member generally captively located between said legs and movable generally longitudinally relative thereto, said wedge member having a pair of wedge faces, with each wedge face co-operating with an associated ramp face so that said wedge faces diverge towards said base, said wedge member upon movement away from said base towards the free ends of said legs causing resilient transverse outward deflection of said legs as a result of the co-operation of the wedge and ramp surfaces to move said brake pad areas into frictional engagement with a supporting window frame; and

    spring means extending between said base and wedge member biasing said wedge member to deflect said legs transversely outwardly.

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