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US 5,339,507 AGranted
Window removal system
OwnerRick L. Coxinventor
Life of this patent
Estimating the term…
Abstract
Apparatus for removing metal framed windows and doors applies inwardly-directed force to collapse the frame inwardly upon itself. A tool consisting of clamps and a tensioning device which applies the force sequentially around the frame. At each position where the tool is fastened to the frame, tension is applied to the frame until one or more sides collapse inwardly. The tool is then repositioned and the process repeated until the entire frame is collapsed and can be removed.
Claims2
A metal sash frame puller comprising:
- first, second, third and fourth cam-locking pliers, each including a first handle having a fixed serrate jaw at one end and having a terminus thereon substantially near to said fixed serrate jaw, an opposing serrate jaw pivotally mounted on said first handle, a second handle pivotally mounted on said opposing jaw, a cam pivotally mounted between said first handle and said second handle for moving said serrate jaws into clamping engagement and locking said serrate jaws in said clamping engagement, an adjusting screw engaged in another end of said first handle for adjusting the distance between said first and said second serrate jaws in said clamping engagement, a releasing lever for unlocking said first and said second handles from said clamping engagement, and a ring-loop rotatably secured within said terminus;
- a come-along for pulling said first and second cam-locking pliers substantially towards one another, said come-along having a frame, an axle mounted on said frame, a ratchet spool assembly rotatably mounted on said axle, an actuating arm pivotally mounted on said frame, said actuating arm having a first pawl for engaging and imparting rotary motion to said ratchet spool assembly when said actuating arm is manually oscillated, a second pawl for preventing counter-rotary motion of said ratchet spool assembly, a first hook mounted substantially at one end of said frame, a cable assembly including a steel cable having a second hook affixed at one end thereof, said cable attached by a second end to said ratchet spool assembly, said frame having a fairlead mounted substantially at another end of said frame, said fairlead forming an aperture for guiding said cable therethrough as said cable is wound around said ratchet spool assembly in response to said actuating arm being manually oscillated;
- first connecting means for connecting said ring-loop of said first cam-locking plier with said ring-loop of said third cam-locking plier;
- second connecting means for connecting said ring-loop of said second cam-locking plier with said ring-loop of said fourth cam-locking plier;
- and
- said first hook of said come-along engageable with said ring-loop of said first cam-locking plier and said second hook of said come-along engageable with said ring-loop of said second cam-locking plier.
3 more elements
A metal sash frame puller comprising:
- first, second, third and fourth C-clamps, each including a substantially C-shaped frame having a stationary jaw at the end of one arm of said C-shaped frame and a transverse threaded hole at the end of the other arm of said C-shaped frame, a ring-loop secured to said C-shaped frame substantially near to said stationary jaw, a threaded rod engaged in said threaded hole for applying screw pressure to said stationary jaw, and handle means for turning said threaded rod;
- a come-along for pulling said first and second C-clamps substantially towards one another, said come-along having a frame, an axle mounted on said frame, a ratchet spool assembly rotatably mounted on said axle, an actuating arm pivotally mounted on said frame, said actuating arm having a first pawl for engaging and imparting rotary motion to said ratchet spool assembly when said actuating arm is manually oscillated, a second pawl for preventing counter-rotary motion of said ratchet spool assembly, a first hook mounted substantially at one end of said frame, a cable assembly including a steel cable having a second hook affixed at one end thereof, said cable attached by a second end to said ratchet spool assembly, said frame having a fairlead mounted substantially at another end of said frame, said fairlead forming an aperture for guiding said cable therethrough as said cable is wound around said ratchet spool assembly in response to said actuating arm being manually oscillated;
- first connecting means for connecting said ring-loop of said first C-clamp with said ring-loop of said third C-clamp;
- second connecting means for connecting said ring-loop of said second C-clamp with said ring-loop of said fourth C-clamp;
- and
- said first hook of said come-along engageable with said ring-loop of said first C-clamp and said second hook of said come-along engageable with said ring-loop of said second C-clamp.
3 more elements
Dependencies are inferred from the claim text.