Fastener driving tool

Details Fastener driving tool Fastener driving tool

1996-07-25

1998-02-24

Hail, III, Joseph J.

Elongated-member-driving apparatus

With means to move or guide member into driving position

Including supply magazine for constantly urged members

227132, 227146, B25C 515

Patent

active

057204233

ABSTRACT:
A fastener driving tool includes a cylinder and a drive piston reciprocally movable within the cylinder. A driver is connected to the drive piston and is operable to drive fasteners when the drive piston is moved in a driving direction. The drive piston defines a gas chamber in the cylinder for accommodating a gas. A drive mechanism is provided for moving the drive piston from a first position to a second position in a direction opposite to the driving direction for compressing the gas within the gas chamber. The drive mechanism is operable to permit movement of the drive piston in the driving direction by the pressure of the gas compressed within the gas chamber when the drive piston reaches the second position.

REFERENCES:
patent: 4215808 (1980-08-01), Sollberger et al.
patent: 4834278 (1989-05-01), Lin
patent: 5004140 (1991-04-01), Fushiya et al.
patent: 5118023 (1992-06-01), Fushiya et al.
patent: 5503319 (1996-04-01), Lai
patent: 5511715 (1996-04-01), Crutcher et al.

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