Patent · US Expired

Removable cylinder locked mullion assembly

US5450697A · kind A · utility

22Cited by
11References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 19, 1994
Grant dateSep 19, 1995
Priority date
Expiry dateApr 19, 2014

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T70/5009
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A mullion assembly mountable between a floor and a door frame includes an engagement assembly attached to either the floor or the door frame. A mullion defining a mullion cavity is positioned in removable attachment with the engagement assembly, and a cylinder lock assembly is positioned in the mullion cavity. The cylinder lock assembly has a key lock cylinder configured for positioning in either a locked position to engage the engagement assembly and hold the mullion in an upright position in the door frame, or in an unlocked position disengaged from the engagement assembly to permit removal of the mullion from the doorway.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.