Cutlery – Perforating or indenting implements – Pointed
Patent
1991-02-07
1992-03-31
Watts, Douglas D.
Cutlery
Perforating or indenting implements
Pointed
30358, 30364, B26F 100, B26F 124, B26F 132
Patent
active
050995790
ABSTRACT:
An improved tire puncturing device includes a base plate having a plurality of drive pins whose axes are formed in a plane perpendicular to the plane of the base plate. The drive pins extend from one side of the base plate and include a free end which forms a piercing point. Each of the drive pins are secured in the base plate and have an aperture formed therethrough for enabling fluid to enter the aperture at the piercing point and exit the drive pin at the other side of the base plate.
REFERENCES:
patent: 734157 (1903-07-01), Bernard
patent: 1209571 (1916-12-01), Fegley et al.
patent: 1465793 (1923-08-01), Schilling
patent: 2087186 (1937-07-01), Freeman, Jr.
patent: 2432176 (1947-12-01), Schubring
patent: 4473948 (1984-10-01), Chadwick
Hertz Harvey S.
Heyrana Sr. Paul M.
Watts Douglas D.
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