1980-10-03
1981-11-17
Hinson, Harrison L.
Metal working
Filing
29 80, 51392, B23D 7100, B23D 7104, B24D 1504
Patent
active
RE0307947
ABSTRACT:
Hand-held scraper includes a body or holder portion to which is removably secured a scraping or cutting blade. The blade is retained in place by camming the mounting tabs at its respective ends into tight frictional locking engagement with a pair of longitudinally spaced apart retaining ribs protruding downwardly in opposite outwardly disposed directions from the underneath side of the holder portion. At least one of the retaining ribs is somewhat flexible to facilitate camming of the blade into and out of assembled engagement with the holder portion with little or no flexing of the mounting tabs and no bending or yielding of the blade body whatsoever. To facilitate removal and replacement of the blade, a movable lever is provided on the underneath side of the holder portion inwardly of one of the mounting tabs. When the lever is manually pushed downwardly, the lever presses against such mounting tab, causing it to cam away from the associated mounting rib thus freeing the blade from the holder.
REFERENCES:
patent: 490474 (1893-01-01), Faestl
patent: 643717 (1900-02-01), Ingalsbe
patent: 644020 (1900-02-01), Ludwig
patent: 696177 (1902-03-01), Huffstickler
patent: 4137670 (1979-02-01), Goralski
Hinson Harrison L.
Oatey Co.
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