Michael H Shearon

US Patent:

40418162, Aug 16, 1977

Filed:

Aug 12, 1976

Appl. No.:

5/713807

Inventors:

Michael Hillas Shearon - Newark DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

B23D 2512
B26D 706

US Classification:

83100

Abstract:

An apparatus for the high-speed transverse severing of sheets from a running web utilizing interacting blades carried by counter-rotating shafts, with wrap around and retention of the web on one shaft. The blade on the other shaft has a shaped surface which defines an epitrochoid profile along its entire length. The blade on the one shaft has a straight cutting edge which accurately engages an opposed cutting edge defined by the intersection of said shaped surface and the outer peripheral surface of said blade.

US Patent:

40808564, Mar 28, 1978

Filed:

May 24, 1976

Appl. No.:

5/689557

Inventors:

Michael Hillas Shearon - Newark DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

B65H 1720
B26D 706

US Classification:

83 99

Abstract:

An apparatus for the high-speed transverse severing of equi-sized sheets from a running web utilizing interacting blades carried by power-driven counter-rotating shafts, with vacuum retention of the web on one shaft of the apparatus as carrier over substantially from the point of web input to the apparatus to at least the point of web severance.

US Patent:

41350820, Jan 16, 1979

Filed:

Sep 13, 1977

Appl. No.:

5/832975

Inventors:

Raymond S. Borders - Claymont DE
Michael H. Shearon - Newark DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

H03K 2108

US Classification:

235 92CC

Abstract:

A digital data acquisition system wherein a succession of electrical impulses whose frequency is characteristic of an operation to be measured is compared with a reference electrical pulse series.