Robert P Otto

US Patent:

41790502, Dec 18, 1979

Filed:

May 10, 1978

Appl. No.:

5/904600

Inventors:

Francis M. Farrell - Grant Township, Washington County MN
Robert B. Otto - Champlin MN
William J. Seim - Roseville MN

Assignee:

Minnesota Mining and Manufacturing Company - Saint Paul MN

International Classification:

B67D 542
G01F 1104

US Classification:

222386

Abstract:

A fluid dispensing piston for a cylindrical dispensing tube has a recessed transverse end wall formed with at least one aperture. The aperture is normally covered by a fluid seal removably retained on the exterior surface of the end wall. The piston is placed in a cylindrical dispensing tube with the exterior of the end wall pressing against the fluid in the tube and the piston is moved axially down the tube to dispense the fluid. Further fluid may then be added to the tube and a second piston moved axially down the tube to dispense that fluid, the conformable material covering the aperture in the end wall of the first piston being forced away from the end wall to uncover the apertures as the second piston is moved down the tube to create a pathway for the fluid through the first piston.

US Patent:

44591659, Jul 10, 1984

Filed:

Jun 10, 1983

Appl. No.:

6/503330

Inventors:

Michael A. Meis - Maplewood MN
Robert B. Otto - Champlin MN
James R. Bylander - Maplewood MN

Assignee:

Minnesota Mining and Manufacturing Company - Saint Paul MN

International Classification:

E04B 200

US Classification:

156 71

Abstract:

A communication cable applicator and method in which a communication cable component supply including two rolls of pressure sensitive adhesive tape and a plurality of lengths of communication conductors supported and guided on a frame across a resilient applicator roller on which the conductors are sandwiched between the tapes and the composite is applied to a floor prior to carpeting as a user pushes the apparatus across the floor.