Title: Sliding closure lock latch

Abstract: A lock latch assembly for sliding closures (windows and patio doors) which is placed to limit the opening of such closures beyond an adjusted position and which prevents access through the closure opening. A simple integral notched plate as one element and a swiveled pin as a second element provides the structure, each held by fasteners which have substantially resistance in shear to any forcing of the closures.

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Inventors: Lindquist, Morris W. (Warren, MI, US)
Hines, Henry P. (Detroit, MI, US)

Application Number: 971843
Filing Date: 1978-12-21
Publication_date: 1980-10-14
Assignee:
Primary Class(es): 292/202 292/305, 292/DIG46, 292/DIG47
Other Classes:
US Patent Ref:

345483	Jul, 1886	Cole	292/305.
346516	Aug, 1886	Tankersly	292/209.
1618353	Feb, 1927	Rice	292/272.
1747707	Feb, 1930	Grosse	292/271.
2481329	Sep, 1949	Monat	292/207.
2560656	Jul, 1951	Melnick	292/202.
2683049	Jul, 1954	Van Der Spek	292/238.
3352586	Nov, 1967	Hakanson	292/DIG.

Other Refs: 173656

Dec, 1934	CH

Primary Examiner: Moore, Richard E.
Assistant Examiner:
Attorney: Barnes, Kisselle, Raisch & Choate