×

Security enclosure for a door frame

  • US 4,598,495 A
  • Filed: 08/20/1984
  • Issued: 07/08/1986
  • Est. Priority Date: 08/20/1984
  • Status: Expired due to Fees
First Claim
Patent Images

1. A security enclosure for a door frame within a wall having first and second sides and spaced adjacent thereto and the wall extending upwardly from a base comprising:

  • a. a first door having a first portion hingedly connected to the door frame, a second portion capable of being positioned immediately adjacent the wall, and a third portion connected to said first and second portions and lying away from the door frame when said second portion of said first door positions immediately adjacent the door frame, said first, second and third portions of said first door forming a first chamber with the base, said first chamber extending outwardly from the first side of the wall;

    b. a second door having a first portion hingedly connected to the door frame, a second portion capable of being positioned immediately adjacent the wall, and a third portion connected to said first and second portions and lying away from the door frame when said second portion of said second door positions immediately adjacent the door frame, said first, second, and third portions of said second door forming a second chamber with the base, said second chamber extending outwardly from the second side of the wall said first and second chambers interconnecting to form a chamber unit; and

    c. means for permitting said second portion of said first door to travel to the space on the second side of the wall a sufficient distance to form a gap between said second portion of said first door and the door frame, said gap permitting movement of persons from the first to the second side of the wall.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×