Hughes Supply and Manufacturing Company of Thomasville, Inc.
대리인 / 주소
Hurt, Blake P.
인용정보
피인용 횟수 :
1인용 특허 :
32
초록▼
An attractive window lock for conventional double hung windows is provided with a housing containing a handle and a cam. The housing defines a pair of grooves which are complementary shaped to the ends of a mounting plate. The mounting plate is affixed with fasteners to the window sash and the housi
An attractive window lock for conventional double hung windows is provided with a housing containing a handle and a cam. The housing defines a pair of grooves which are complementary shaped to the ends of a mounting plate. The mounting plate is affixed with fasteners to the window sash and the housing is then slideably joined to the mounting plate, concealing the mounting plate and fasteners and providing an attractive appearance for the owner. A keeper is affixed to the opposing sash and by rotating the handle on the housing the rotatable cam extends and engages the keeper to secure the sashes in place.
대표청구항▼
1. A window lock comprising: a housing defining a groove with a pair of groove ledges configured to receive a U-shaped mounting plate and a pair of slots, said mounting plate defining a pair of opposing longitudinal ends with rectangular cross-sections for engaging said housing, each longitudinal en
1. A window lock comprising: a housing defining a groove with a pair of groove ledges configured to receive a U-shaped mounting plate and a pair of slots, said mounting plate defining a pair of opposing longitudinal ends with rectangular cross-sections for engaging said housing, each longitudinal end comprising a pair of opposing lateral ends relative to said mounting plate and a downwardly extending biased face with a shoulder, each lateral end having a planar terminal face, wherein corresponding planar terminal faces on each longitudinal end are coplanar and parallel, each biased face extending along a longitudinal axis defined by said mounting plate and terminating in a vertical part, each of said housing slots shaped to accommodate different ones of said biased faces, each shoulder extending completely between said opposing lateral ends and beyond said rectangular cross-sectional ends, a cam and a keeper, said cam engaging said keeper, said cam contained within said housing, a handle, said handle connected to said cam for rotating the same, said mounting plate releasably engaging said housing. 2. The window lock of claim 1 further comprising a planar section, said planar section joined to each of said pair of ends, a ramp, said ramp joined atop said planar section. 3. The window lock of claim 1 further comprising a second downwardly extending biased face positioned in opposing relation on each of the lateral ends opposing the other biased faces, said second biased faces extending parallel to the longitudinal axis defined by said mounting plate. 4. A window lock for securing window sashes of a double hung window, the lock comprising: a housing positioned on one of said window sashes, a cam, said cam contained within said housing, a keeper positioned on the other of said windows configured to receive said cam therein, a handle, said handle positioned on said housing and attached to said cam for rotating the same, said housing defining a groove and a pair of slots, each slot including an orthogonal groove ledge configured to receive a separate side of a U-shaped mounting plate, said mounting plate comprising a rectangular planar section with a pair of friction ramps, said pair of ramps positioned atop said planar section, and a pair of opposing longitudinal ends relative to the mounting plate, each longitudinal end defining a rectangular cross-section and a pair of opposing lateral ends relative to said mounting plate, each lateral end having a planar terminal face, wherein corresponding planar terminal faces on each longitudinal end are coplanar and parallel, a downwardly extending biased face extending along a longitudinal axis defined by said mounting plate and terminating in a vertical part, and a shoulder, each shoulder extending completely between said opposing lateral ends and beyond said rectangular cross-sectional end, each of said slots shaped complementary to different ones of said biased faces of said mounting plate such that said mounting plate securely engages said housing. 5. The window lock of claim 4 further comprising the mounting plate defining an opening in one of said rectangular cross-sectional ends, a fastener, said fastener positioned in said opening to stabilize said mounting plate. 6. A method of locking a double hung window comprising the steps of: a) providing the window lock of claim 1;b) attaching the mounting plate to a window sash;c) attaching the keeper to a window sash which is opposing the window sash with the mounting plate attached;d) sliding the housing into engagement with the mounting plate, completely positioning the mounting plate within the housing; ande) rotating the handle to cause the cam to engage the keeper and lock the window. 7. The method of claim 6 further comprising the step of disengaging the cam from the keeper to unlock the window.
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이 특허에 인용된 특허 (32)
Matthew Peter Szapucki ; Richard J. Kulkaski, Apparatus for securing sash window.
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