Patent · US Expired

Foldable security bar

US4429912A · kind A · utility

16Cited by
3References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 6, 1981
Grant dateFeb 7, 1984
Priority date
Expiry dateJul 6, 2001

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T292/282
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A foldable security bar is permanently attached to a sliding panel such as a patio door or window and is operable without interfering with normal use of the panel. The foldable security bar assembly includes first and second bar sections, each section having a tubular open end portion. The bar sections are pivotally connected for movement from a closed position in which the open end portions are in axial alignment to an open position in which the bars extend transversely with respect to each other. A movable latch is slidably received within the tubular open end portion of one bar section for locking and unlocking the assembly. The latch is movable from a fully retracted, released position permitting unobstructed pivotal movement of the bar sections to a locked position in which opposite end portions of the latch extend within both tubular end portions when the bar sections are in axial alignment, thereby preventing pivotal movement of the bar sections. When the latch is in the released position, the panel is freely movable between fully closed and open positions. When the latch is in the locked position, the security bar positively secures the movable panel in the closed position …

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