Metal working – Means to assemble or disassemble – With control means energized in response to activator...
Reexamination Certificate
2006-05-02
2006-05-02
Hong, John C. (Department: 3726)
Metal working
Means to assemble or disassemble
With control means energized in response to activator...
C029S243000, C173S029000
Reexamination Certificate
active
07036211
ABSTRACT:
A pulling tool comprises an air-powered internal anvil and hammer. The pulling tool is attached to the object to be removed. The hammer is urged by pressurized air to repeatedly strike the anvil, which applies a percussive force to the object, progressively removing the object from its housing. A conventional air hammer can be modified into a tool puller by replacing the air hammer bit with a cap, and attaching the object to the rear of the air hammer through a coupler. Alternatively, a cylindrically-shaped collar is slidably secured over a conventional air hammer. A pulling bit slidably communicates with a flanged rod attached to the object to be removed. Operation of the air hammer causes the pulling bit to strike the flange, progressively removing the object from its housing.
REFERENCES:
patent: 2705982 (1955-04-01), Ponts
patent: 4168751 (1979-09-01), Deike
patent: 4495791 (1985-01-01), Kemnitz et al.
patent: 4586230 (1986-05-01), Harydzak et al.
patent: 5406685 (1995-04-01), Harmand
patent: 5638909 (1997-06-01), Henderson
patent: 5787561 (1998-08-01), Harmand
Hong John C.
McGarry Bair PC
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