Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
234 words
A support assembly for stationary mounting from a suitable support structure, said support assembly including a base adapted for mounting on said support structure and including a horizontally outwardly projecting support arm, a lift arm including a first inner end pivotally supported from said base below the inner end of the support arm for rotation about a horizontal axis relative to the base and including an outer end spaced below the outer end of the support arm, tension member guide means carried by the outer end of the support arm, an elongated flexible tension member looped over the guide means and including two depending end portions, a first end portion of the tension member being anchored to the outer end of the lift arm and the second end portion of the tension member having a head sling supported therefrom, weight means supported from said lift arm intermediate said axis and the outer terminal end of said lift arm and adjustably positionable therealong, said base defining a downwardly opening channel extending transversely of said support arm for embracingly engaging the upper marginal edge portion of a door, said channel being defined between a pair of depending generally parallel flange portions supported for adjustable positioning toward and away from each other, said inner ends of said support and lift arms being supported from the outer surface of one of said flanges remote from the other flange.
Claim 2
Dependent Claim
234 words
A support assembly for stationary mounting from a suitable support structure, said support assembly including a base adapted for mounting on said support structure and including a horizontally outwardly projecting support arm, a lift arm including a first inner end pivotally supported from said base below the inner end of the support arm for rotation about a horizontal axis relative to the base and including an outer end spaced below the outer end of the support arm, tension member guide means carried by the outer end of the support arm, an elongated flexible tension member looped over the guide means and including two depending end portions, a first end portion of the tension member being anchored to the outer end of the lift arm and the second end portion of the tension member having a head sling supported therefrom, weight means supported from said lift arm intermediate said axis and the outer terminal end of said lift arm and adjustably positionable therealong, said base defining a downwardly opening channel extending transversely of said support arm for embracingly engaging the upper marginal edge portion of a door, said channel being defined between a pair of depending generally parallel flange portions supported for adjustable positioning toward and away from each other, said inner ends of said support and lift arms being supported from the outer surface of one of said flanges remote from the other flange.
Claim 3
Dependent Claim
20 words
The combination of claim 1 wherein the inner opposing surfaces of said flanges are covered with a resilient protective coating.
Claim 4
Dependent Claim
35 words
The combination of claim 1 wherein the upper marginal portion of said lift arm has a plurality of longitudinally spaced notches formed therein, said weight means including a suspension hook removably engageable in said notches.
Claim 5
Dependent Claim
77 words
The combination of claim 1 wherein said head sling includes an elongated flexible strap disposed in a vertical loop with its upper portion anchored to the end of said tension member remote from the free end of said lift arm, and an adjustable length brace secured between and frictionally engaged with the upper portions of the sides of said loop with said upper portions frictionally retained against longitudinal displacement relative to the opposite ends of said brace.
Claim 6
Dependent Claim
45 words
The combination of claim 4 wherein said sling includes a second flexible adjustable strap arranged in an upwardly opening and inclined loop, the upper ends of said second loop being secured to the sides of the first loop below the opposite ends of said brace.
Claim 7
Dependent Claim
148 words
A variable weight traction unit comprising an inverted U-shaped base adapted to embracingly engage the upper marginal edge portion of a horizontally swingable door, a support arm structure projecting horizontally ouTwardly from one side of said base, a generally horizontal lift arm disposed on said one side of said base and generally paralleling said support arm, one end of said lift arm being pivotally secured to said one side of said base for swinging about a horizontal axis extending transversely of said lift arm, a pulley assembly supported from the outer end of said support arm, an elongated flexible tension member passed over said pulley assembly and having a first end secured to the end of said lift arm remote from said base, the other end of said tension member having a head sling supported therefrom, and a weight supported from said lift arm and adjustably positionable therealong.
Claim 8
Dependent Claim
148 words
A variable weight traction unit comprising an inverted U-shaped base adapted to embracingly engage the upper marginal edge portion of a horizontally swingable door, a support arm structure projecting horizontally ouTwardly from one side of said base, a generally horizontal lift arm disposed on said one side of said base and generally paralleling said support arm, one end of said lift arm being pivotally secured to said one side of said base for swinging about a horizontal axis extending transversely of said lift arm, a pulley assembly supported from the outer end of said support arm, an elongated flexible tension member passed over said pulley assembly and having a first end secured to the end of said lift arm remote from said base, the other end of said tension member having a head sling supported therefrom, and a weight supported from said lift arm and adjustably positionable therealong.