×

Entrance device

  • US 5,878,529 A
  • Filed: 02/26/1997
  • Issued: 03/09/1999
  • Est. Priority Date: 08/27/1993
  • Status: Expired due to Fees
First Claim
Patent Images

1. An entrance device for placement in a facade of a building, comprising:

  • at least two revolving doors, each having an input section and an output section;

    a sliding door for closure of the input and output sections of the two revolving doors, said sliding door being disposed between said two revolving doors; and

    an air curtain disposed between said two revolving doors.

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