Kenneth W Wiater

US Patent:

39602508, Jun 1, 1976

Filed:

Apr 14, 1975

Appl. No.:

5/567976

Inventors:

Kenneth Walter Wiater - Palatine IL

Assignee:

Teletype Corporation - Skokie IL

International Classification:

F16F 948

US Classification:

188281

Abstract:

An improved decelerating mechanism of the dashpot type in which the piston normally leaves the cylinder on each operating cycle and has a sealing ring cantilevered in the direction of piston travel having a deep undercut whereby air pressure of the air compressed in front of the piston inside the cylinder biases the cantilevered sealing ring against the wall of the cylinder to accomplish effective sealing of the piston against uncontrolled air leakage. A projection on the front of the piston seals the air exit from the compression chamber during the last portion of piston travel in order to provide a final cushion for the moving dashpot piston.

US Patent:

46009299, Jul 15, 1986

Filed:

Jun 1, 1984

Appl. No.:

6/616028

Inventors:

Ramon M. Cardona - Des Plaines IL
Kenneth W. Wiater - Palatine IL

Assignee:

AT&T Teletype Corporation - Skokie IL

International Classification:

G01D 1524
G03G 1500
B65H 522
B65H 500

US Classification:

346134

Abstract:

A paper transport apparatus is illustrated which strips a single sheet of paper 16 from a stack 18 using a stripping roller 20 and cooperating fingers 22. The sheet of paper 16 is directed between the nip of a pressure roller 26 and a transfer roller 28. The transfer roller 28 is mounted on a drive mechanism 30 and is selectively positioned against a transfer drum 40 carrying an ink pattern by a cam 66, follower 72 and a spring 60 combination. The paper 16 is driven by the transfer roller 28 in contact with the drum 40 and discharged along a shelf 52 guided by a belt 50.