The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 1990
Filed:
May. 22, 1989
Victor L Chun, Holland, PA (US);
James R Hunter, Chadds Ford, PA (US);
George Jaworski, Bala Cynwyd, PA (US);
Murata Wiedemann, Inc., King of Prussia, PA (US);
Abstract
A multitool punch holder (12) having a head member (26) coupled to a punch press ram (16) as the press upper turret plate (22) rotates to bring the punch holder (12) into alignment with the ram (16). The punch holder (12) includes a rotary tool carrier (56) carrying a series of punches (80), each able to be selectively rotated into alignment beneath a striker rod (100) slidably mounted in a non rotating body member (30). Stroking of the ram (16) causes an engagement feature (108) to engage the striker rod (100) when the head member (26) telescopes into the body member (30) after axial movement of the holder (12) is arrested by contact with the workpiece (120). The striker rod (100) is then driven to force the coupled individual punch (80) into the workpiece (120). The striker rod (100) is urged to a raised position by an encircling stripper spring (110). A separation spring (42) urges the ram (16) and body member (30) to retracted position with the striker rod (100) out of engagement with the ram engagement feature (108). A detachable striker plate (88) of urethane provides non-marring contact with the workpiece (120).