Hand-held spring-driven drive-in tool

Details Hand-held spring-driven drive-in tool Hand-held spring-driven drive-in tool

2011-01-18

2011-01-18

Nash, Brian D (Department: 3721)

Elongated-member-driving apparatus

With means to move or guide member into driving position

Including supply magazine for constantly urged members

C227S139000, C227S131000

Reexamination Certificate

active

07870988

ABSTRACT:
A hand-held drive-in power tool for driving in fastening elements includes a guide (12) in which a drive-in ram (13) for driving a fastening element is displaceable, and at least one preloaded drive spring (31) for driving the drive-in ram (13), with the drive being preloaded by a tensioning device (70) and further includes a transmission element (33) for transmitting a tensioning force from the tensioning device (70) to the drive spring (31), the transmission element being guided by at least one roller (34) supported on a support element (35) by at least one rolling bearing (40).

REFERENCES:
patent: 1767485 (1930-06-01), Shallenberger
patent: 1845617 (1932-02-01), Metcalf
patent: 3305156 (1967-02-01), Khan
patent: 3589588 (1971-06-01), Vasku
patent: 3847322 (1974-11-01), Smith
patent: 3982678 (1976-09-01), Olson
patent: 4103747 (1978-08-01), Finney
patent: 4215808 (1980-08-01), Sollberger et al.
patent: 4724992 (1988-02-01), Ohmori
patent: 7494037 (2009-02-01), Simonelli et al.
patent: 7543728 (2009-06-01), Spasov et al.
patent: 2007/0023472 (2007-02-01), Schiestl
patent: 2007/0284406 (2007-12-01), Okouchi
patent: 2008/0173688 (2008-07-01), Spasov et al.

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