Cutting – With product handling means – Means to move – guide – or permit free fall or flight of product
Patent
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.
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Marks' Standard Handbook for Mechanical Engineers, 8th Edition, McGraw-Hill Book Co., N.Y., pp. 8-77.
Bressler Marvin
Katz Steve
Spruill Robert L.
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