A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Security Latch for a Swing Bar Door Guard
A security latch for a swing bar door guard having a break away rotatable cross-member to further secure the swing bar so as to permit a minimal gap between the door and doorway when the door is opened while the cross-member extends through the swing bar retaining arm passage and is rotated lengthwise across the span to secure the swing bar. The minimal gap inhibits the introduction of a tool into the span along the midsection of the swing bar that could be used to pry the swing bar members apart to release the knob of a swing bar retaining arm.
Security Latch for a Swing Bar Door Guard
A security latch for a swing bar door guard having a break away rotatable cross-member to further secure the swing bar so as to permit a minimal gap between the door and doorway when the door is opened while the cross-member extends through the swing bar retaining arm passage and is rotated lengthwise across the span to secure the swing bar. The minimal gap inhibits the introduction of a tool into the span along the midsection of the swing bar that could be used to pry the swing bar members apart to release the knob of a swing bar retaining arm.
Security Latch for a Swing Bar Door Guard
KINGSBURY ALAN B (author)
2018-06-14
Patent
Electronic Resource
English