US2021062524A1PendingUtilityA1
Swivel Frame Puller and Method of Use
Est. expirySep 4, 2039(~13.1 yrs left)· nominal 20-yr term from priority
Inventors:Bret Regan Nixon
E04G 2023/088E04G 23/08
19
PatentIndex Score
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Cited by
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Claims
Abstract
An apparatus for levering a window frame from a wall opening by using mechanical advantage of levering action and a locking clamp attached to the frame for pulling the frame from the opening. The frame pulling apparatus being pivotally connected to a replaceable base for protecting window surrounding materials from damage during window demolition.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . An apparatus for removing a window frame from a wall opening comprising:
a lever arm pivotally connected to a fulcrum, the fulcrum extending downward from the lever arm to a sturdy base; a locking clamp pivotally connected to a load end of the lever; and a handle at the distal, effort end of the lever.
2 . The apparatus described in claim 1 , the fulcrum further comprising:
a bracket pivotally supporting the lever arm by a horizontal pin joining the bracket to a point along the length of the lever arm; the bracket swivelly attached to the sturdy base.
3 . The apparatus described in claim 2 , wherein the bracket further comprises:
a spreader extending between the top of two sides; the two sides extending down around the lever arm; and mating to a bottom, such that the bracket encircles the lever arm.
4 . The apparatus described in claim 2 , wherein the sturdy base further comprises:
a removably attached expanded base secured to the sturdy base's lower face.
5 . The apparatus described in claim 4 , wherein the expanded base is based to one corner of the sturdy base.
6 . The apparatus described in claim 4 , wherein the expanded base:
is slip resistant and/or textured.
7 . The apparatus described in claim 4 , wherein the expanded base:
is compressible and/or non-marking.
8 . The apparatus described in claim 1 , wherein the locking clamp:
aligns with the central axis of the lever arm passing directly over the fulcrum.
9 . A method of removing a window frame from a wall opening comprising:
using a frame puller comprising:
a lever arm pivotally connected to a fulcrum;
the fulcrum extending downward from the lever arm to a sturdy base;
a locking clamp pivotally connected to a load end of the fulcrum; and
a handle at the distal, effort end of the lever;
attaching the locking clamp to the center of a side of the window frame; positioning the sturdy base against an adjacent sill; prying the window frame to pull it away from the wall opening; releasing the locking clamp; and repositioning to repeat as necessary until the frame is free of the opening.
10 . The method described in claim 9 further comprising:
bending the side of the window frame at the clamp attachment locating; and
bending the window frame at the corners,
such that the frame folds for removal.
11 . The method described in claim 9 wherein the fulcrum further comprises:
the fulcrum being swivelly attached to the sturdy base;
such that the method further comprises:
swiveling the locking clamp to a corner of the sturdy base;
attaching the locking clamp near a corner of the flame;
positioning a at least a portion of the sturdy base against an adjacent sill;
prying the window frame to pull it away from the opening.Join the waitlist — get patent alerts
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