Punch and ejector assembly

Details Punch and ejector assembly Punch and ejector assembly

1981-09-14

1987-09-08

Spruill, Robert L.

Cutting

With product handling means

Means to move, guide, or permit free fall or flight of product

30130, 30368, 83140, 83143, B26D 718

Patent

active

046916024

ABSTRACT:
A piercing punch and ejection assembly has a piercing punch member provided with a bore in its point thickness section. The ejector member, included in the assembly, comprises a conical helical spring of rectangular cross section that is installed into the blind hole bore of the punch member.

REFERENCES:
patent: 115157 (1871-05-01), Brown et al.
patent: 389404 (1888-09-01), O'Neill
patent: 1940438 (1933-12-01), Stowell
patent: 2545237 (1951-03-01), Maby
patent: 3063319 (1962-11-01), Johnson
patent: 3190160 (1965-06-01), Armacost
patent: 3222968 (1965-12-01), Larson
patent: 3379083 (1968-04-01), Burns et al.
patent: 3459081 (1969-08-01), Kanode
patent: 3504436 (1970-04-01), Ebert
patent: 3620113 (1971-11-01), Gargrave
Marks' Standard Handbook for Mechanical Engineers, 8th Edition, McGraw-Hill Book Co., N.Y., pp. 8-77.

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