Patent · US Active

Sash lock with signal

US8414039B2 · kind B2 · utility

16Cited by

7References

6Claims

0Family size

Assignee

VISION INDUSTRIES GROUP, INC. · US

Inventors

Luke Liang · South Plainfield, US
David Chen · 流花街道, CN
Tong Liang · 流花街道, CN

Key dates

Filing date	Jun 29, 2007
Grant date	Apr 9, 2013
Priority date	—
Expiry date	Mar 14, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T292/1039
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An automatic sash lock is disclosed having a housing with a top surface and a bottom surface and one or more side surfaces extending from said top surface. The housing has a front face at least a portion of which is open to the interior of the housing. The housing has a tongue movably secured thereto. The tongue has a retracted position and an extended position wherein the tongue extends from the open area of the front face of the housing. The tongue moves from a retracted position to an extended position when a portion of said housing contacts a keeper.

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