Emergency gas shut-off tool

Details Emergency gas shut-off tool Emergency gas shut-off tool

1985-02-11

1987-04-14

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

81111, 7166, 7168, B25B 1300, B25B 1330, B25G 100

Patent

active

046568956

ABSTRACT:
Emergency gas shut-off tool; comprising a three-dimensional shank, having an upper end terminating in a butt and an inverted U-shaped three-dimensional head mounted rotatably to the shank adjacent the butt so as to form a closed space therewith.

REFERENCES:
patent: 65550 (1867-06-01), Dunlap
patent: 120304 (1871-10-01), McBride
patent: 510981 (1893-02-01), Massey
patent: 763745 (1904-06-01), Gheen
patent: 770970 (1904-09-01), Keferstein
patent: 773428 (1904-10-01), Sickles
patent: 941707 (1909-11-01), Gaines
patent: 1060494 (1913-04-01), Reynolds
patent: 1811137 (1931-06-01), Kress
patent: 1840685 (1932-01-01), Witherup
patent: 2669147 (1954-02-01), Koenig
patent: 2680983 (1954-06-01), Miller
patent: 2886998 (1959-05-01), Scott
patent: 2978938 (1961-04-01), Nalley
patent: 4084456 (1978-04-01), Pasbrig
patent: 4269311 (1981-05-01), Rich
patent: 4371021 (1983-02-01), Converse et al.

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