Roll-up door lock

US5063764A · kind A · utility

Assignee

• Convoy Security Company · US

Inventors

• Lynn Frederick Amis · Ord, US
• Jacob T. Crittenden · San Diego, US
• Raymond J. Dyer · Lincoln, US
• John P. Glynn · Lincoln, US
• Richard H. Hall · Bellevue, US
• Dave L. Huebner · Lincoln, US
• Brian W. Olsen · Beaver Crossing, US
• Sam C. O'Connor · Lincoln, US
• Charles E. Robideaux · Bellevue, US
• David E. Seeley · Lincoln, US
• Steven Sousek · Lincoln, US
• Mark A. Wightman · North Platte, US
• Ronald E. Wintermute · Aurora, US

Key dates

• Filing date: Feb 9, 1989
• Grant date: Nov 12, 1991
• Expiry date: Feb 9, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T292/1089
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A lock is described which is adapted for use in combination with a conventional latching handle assembly mounted on the bottom panel of a roll-up door mounted on a truck or the like. The lock includes a laterally movable dead bolt which, when locked, is in the pivotal path of the latching handle assembly thereby preventing the latching handle assembly from being moved to its unlocked position. A counter is also associated with the lock which visually indicates the number of times that the lock has been actuated.