Closure fasteners – Bolts – Sliding and swinging
Patent
1976-12-23
1978-06-20
Frazier, Roy D.
Closure fasteners
Bolts
Sliding and swinging
292111, 292DIG20, 292DIG47, E05C 500
Patent
active
040958272
ABSTRACT:
A window lock and, more particularly, a check rail lock which can be mounted in association with a double hung window having a center vertical muntin. The window lock has a casing housing a linearly movable locking unit with locking members having a locking notch at one end for engagement with catch means carried by the adjacent window sash, an operating unit with operating members movably mounted in the casing and movable between window unlocked and locked positions and with pin and slot structure interconnecting the locking members and the operating members with the casing whereby the locking members are guided in the linear movement thereof to an advanced position as the operating unit moves toward the locked position and the locking members are then raised into engagement with the catch means and withdrawn to tightly draw and lock the window sash together as the operating unit moves to the final locked position.
REFERENCES:
patent: 542401 (1895-07-01), Anderson
patent: 774206 (1904-11-01), Seaman
patent: 783338 (1905-02-01), Ward
patent: 860769 (1907-07-01), Tait
patent: 904347 (1908-11-01), Mis
patent: 1180474 (1916-04-01), Conwell
patent: 2097232 (1937-10-01), Hartman
patent: 2305715 (1942-12-01), Keller
patent: 2339537 (1944-01-01), Wise
patent: 2997323 (1961-08-01), Riser
patent: 3048435 (1962-08-01), De Marco
patent: 3112943 (1963-12-01), De Marco
patent: 3342516 (1967-09-01), Morand
patent: 3360290 (1967-12-01), De Gray
patent: 3706467 (1972-12-01), Martin
patent: 3844591 (1974-10-01), Velcover
Bonck Rodney H.
Frazier Roy D.
Truth Incorporated
LandOfFree
Window lock does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Window lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Window lock will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1131238