×

Door lifter

  • US 6,088,964 A
  • Filed: 10/08/1998
  • Issued: 07/18/2000
  • Est. Priority Date: 10/08/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A pivoting mechanism for pivoting a door between a first substantially open position and a second substantially closed position, comprising:

  • an elbow lever mechanism comprising at least one leg member;

    a lever element for contacting the door, said at least one leg member of said elbow lever mechanism having a first end pivotably connected;

    a guide lever, said at least one leg member having a second end pivotably connected to said guide lever; and

    a spring element engaged with said guide lever and constructed and arranged to operate said elbow lever mechanism;

    wherein said guide lever is connected with said at least one leg member such that when the door is closed, said elbow lever mechanism is at or adjacent to a dead point, and such that when the door is open, said elbow lever mechanism is in a state of maximum force transfer.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×