Nail driver

Details Nail driver Nail driver

1980-08-04

1983-01-11

McQuade, John

Elongated-member-driving apparatus

With means to support member and/or work relative to driver

With means to vary the length of the tool stroke

227147, B25C 102

Patent

active

043678360

ABSTRACT:
A manual tool suitable for driving nails into concrete or the like comprises an axially extended tube and a ram mounted for reciprocal movement therein, the ram having a handle at one end thereof. The diameter of the ram along its length is substantially less than that of the bore of the tube. The end of the ram remote from the handle is provided with a low friction means to space the ram from the walls of the tube. Typically the low friction spacing means comprises a plurality of ball bearings located respectively in a plurality of recesses formed in the radial surface of the ram.

REFERENCES:
patent: 329278 (1885-10-01), Copeland
patent: 452519 (1891-05-01), Fernald
patent: 875658 (1907-12-01), Dutton
patent: 913014 (1909-02-01), Kafer
patent: 1808452 (1931-06-01), Cousins
patent: 2285384 (1942-06-01), Schott
patent: 2839754 (1958-06-01), Pfaff
patent: 2855601 (1958-10-01), Hamlin
patent: 3012247 (1961-12-01), Sillars et al.
patent: 3147484 (1964-09-01), Nelson

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