Pull down, push up, shade apparatus

  • US 8,245,756 B2
  • Filed: 12/23/2003
  • Issued: 08/21/2012
  • Est. Priority Date: 02/10/2003
  • Status: Active Grant
First Claim
Patent Images

1. A collapsible window covering capable of height adjustments, comprising:

  • an upper elongated support having a longitudinally extending channel;

    a collapsible member coupled to said upper elongated support;

    a lower elongated member coupled to said collapsible member;

    a first primary line coupled to said lower elongated member and extends through a length of said collapsible member;

    a counterbalancing mechanism having a first and second rotary members, and wherein the counterbalancing mechanism is disposed within said longitudinally extending channel;

    a first secondary line having a distal end coupled to said first primary line and a proximal end leading into said counterbalancing mechanism;

    a pulley assembly having a first rotor and a second rotor wherein said first primary line is entrained about said first and second rotors; and

    wherein said counterbalancing mechanism has a spring coupled to said first rotary member thereby urging said first rotary member to rotate in a winding direction to wind and store said first secondary line onto said first rotary member.

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