Louis M Macdougall

US Patent:

56426542, Jul 1, 1997

Filed:

Sep 1, 1994

Appl. No.:

8/299726

Inventors:

Mahendra B. Parekh - Rockford IL
Leon Kitzmiller - Rockford IL
Richard C. Costello - Kirkland IL
C. Allen Grow - Rockford IL
Gordon Pinchott - Rockford IL
Dennis O'Leary - Rockford IL
Louis M. MacDougall - Rockford IL
David W. Okey - Rockford IL
Edward J. Fowler - Rockford IL

Assignee:

Sundstrand Corporation - Rockford IL

International Classification:

F16J 100

US Classification:

92260

Abstract:

This invention relates to a piston and a method of manufacturing the same. The piston includes a substantially cylindrical member having a first end and a second end. The cylindrical member includes an open cavity extending axially from the second end to adjacent the first end such that the second end has an inner annular surface defined by an inner diameter. The piston further includes a disk having a radially outer surface defined by an outer diameter fixedly secured to the second end of the cylindrical member. The outer diameter of the disk is substantially equal to the inner diameter of the inner annular surface of the second end of the cylindrical member. A circumferentially extending recessed area for receiving particles produced while fixedly securing the disk to the second end of the cylindrical member is provided on either the radially outer surface of the disk or the inner annular surface of the second end of the cylindrical member.

US Patent:

55533787, Sep 10, 1996

Filed:

May 22, 1995

Appl. No.:

8/445836

Inventors:

Mahendra B. Parekh - Rockford IL
Leon Kitzmiller - Rockford IL
Richard C. Costello - Kirkland IL
C. Allen Grow - Rockford IL
Gordon Pinchott - Rockford IL
Dennis O'Leary - Rockford IL
Louis M. MacDougall - Rockford IL
David W. Okey - Rockford IL
Edward J. Fowler - Rockford IL

Assignee:

Sundstrand Corporation - Rockford IL

International Classification:

B23P 1500

US Classification:

29888044

Abstract:

An improved method of manufacturing a piston is provided. The piston includes a substantially cylindrical member having a first end and a second end. The cylindrical member includes an open cavity extending axially from the second end to adjacent the first end such that the second end has an inner annular surface defined by an inner diameter. The piston further includes a disk having a radially outer surface defined by an outer diameter fixedly secured to the second end of the cylindrical member. The outer diameter of the disk is substantially equal to the inner diameter of the inner annular surface of the second end of the cylindrical member. A circumferentially extending recessed area for receiving particles produced while fixedly securing the disk to the second end of the cylindrical member is provided on either the radially outer surface of the disk or the inner annular surface of the second end of the cylindrical member.