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US 5,207,730 AGranted
Expansion tube puller
OwnerJoseph Ruggieroinventor
Life of this patent
Estimating the term…
Abstract
A pair of pivotably-joined jaws have a clamp, coupled thereto, for setting the jaws in a selected angular position therebetween and for preventing a pivotable widening thereof after the angle has been set. Too, one of the jaws has an anvil extending therefrom, and a slide hammer assembly, coupled to the anvil, causes percussive jarring of the jaws, in order to free up a stuck expansion tube from an evaporator line. Recesses formed adjacent terminal ends of the jaws engage ears of the expansion tube to enhance the grip thereon.
Claims4
An expansion tube puller, comprising:
- a pair of pivotably-joined jaws;
- and
- means, coupled to at least one of said jaws, for percussively jarring said jaws;
- wherein
- said one jaw has an anvil extending therefrom;
- said jarring means comprises a hammer assembly joined to said anvil;
- said jaws have outermost terminations progressively narrowed outwardly thereof;
- said terminations have first and second opposite sides;
- said termination of one of said jaws, of said pair thereof, has only a single recess formed therein;
- said termination of the other of said jaws, of said pair thereof, has only a single recess formed therein;
- said recess in said termination of said one jaw is formed in only said first side thereof;
- said recess in said termination of said other jaw is formed in only said second side thereof;
- said hammer assembly comprises (a) a rod projecting outwardly from said anvil, (b) a centrally-bore hammer slidably disposed on said rod, and (c) a limit stop fixed to an outermost termination of said rod;
- said rod has a longitudinal axis;
- and
- said anvil has an impactable land, formed thereon, which lies in a plane diagonal to said axis of said rod.
13 more elements
Dependencies are inferred from the claim text.