Hacksaw blade with bi-directional teeth

Details Hacksaw blade with bi-directional teeth Hacksaw blade with bi-directional teeth

1990-03-13

1991-11-05

Yost, Frank T.

Cutting

Tool or tool with support

Toothed blade or tooth therefor

83849, 83835, B27B 2102

Patent

active

050623389

ABSTRACT:
The present invention includes a bi-directional hacksaw blade that bites into and saws an object and clears particulate from a cut being formed in the object in each of the forward and rearward sawing directions. Each of the blade embodiments disclosed include a blade with two sets of teeth. The teeth of the first set is a mirror image of the teeth of the second set so that one set saws the object and the other set clears particulate in one sawing direction. In the opposite sawing direction, the roles of the teeth are reversed.

REFERENCES:
patent: 391843 (1888-09-01), Gray
patent: 706447 (1902-08-01), Peart
patent: 907168 (1908-12-01), Neill
patent: 1497577 (1924-06-01), Morzsa
patent: 2365301 (1944-12-01), Shortell
patent: 2450942 (1948-10-01), Donnelly
patent: 2804110 (1957-08-01), Collins
patent: 2829684 (1958-04-01), Lagerstrom
patent: 3016932 (1962-01-01), Jacobson
patent: 3929050 (1975-12-01), Salzwedel
patent: 4784034 (1988-11-01), Stones et al.

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