Patent · US Active

Automatic window sash interlock

US11879281B2 · kind B2 · utility

1Cited by

15References

14Claims

0Family size

Assignee

Amesbury Group, Inc. · US

Inventors

Tyler Welbig · Harrisburg, US
Allen Rickenbaugh · Sioux Falls, US
Chad Kramer · Winters, US
Gary E. Tagtow · Sioux Falls, US
Douglas John Criddle · Sioux Falls, US

Key dates

Filing date	Nov 25, 2020
Grant date	Jan 23, 2024
Priority date	—
Expiry date	Oct 4, 2041

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE05Y2900/148
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A window sash interlock includes a housing configured to mount to a side rail of a window sash. The housing includes a front face that substantially aligns with a surface of the side rail. A locking member is pivotably coupled to the housing about a pivot axis. The locking member is disposed at least partially within the housing and is movable between at least a locked position and an unlocked position. The locking member is biased so as to automatically return to the unlocked position, and in the unlocked position, the locking member at least partially extends from the front face of the housing.

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