Metal deforming – By use of non-deforming work-gripping clamp and relatively... – Plural or complex apparatus
Reexamination Certificate
2011-03-22
2011-03-22
Ross, Dana (Department: 3725)
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
Plural or complex apparatus
C072S319000, C072S388000
Reexamination Certificate
active
07908899
ABSTRACT:
Improved slide lock apparatus used in bending apparatus to bend stock to an acute angle. A hydraulic cylinder with a ram extendable under hydraulic pressure provides the bending power. The ram automatically retracts a slide from an first outward location when hydraulic pressure is removed to a second inward location for two separate bends to achieve an acute angle bend. This improved slide lock prevents any possible injury to the operator by covering a stop arranged to prevent the slide from moving outward a greater distance then the first outward location.
REFERENCES:
patent: 5626045 (1997-05-01), Bulle
Ekiert Teresa M
Nawrocki, Rooney & Sivertson P.A.
Ross Dana
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