Gerald H Hogland

US Patent:

40358704, Jul 19, 1977

Filed:

Dec 24, 1975

Appl. No.:

5/644275

Inventors:

Imants Reba - Vancouver WA
Gerald Hugh Hogland - Estacada OR
Edward Clair Wolthausen - Vancouver WA

Assignee:

Crown Zellerbach Corporation - San Francisco CA

International Classification:

D04H 100

US Classification:

19155

Abstract:

A fiber distribution and depositing apparatus including a forming bell including front and back walls converging and convexly curved in the direction of flow, and side walls connected to the front and back walls to define an open-endedpassageway for fluid-entrained fibers leading from an inlet to an outlet end, said side walls diverging along straight lines in the direction of flow, the cross-sectional area of the passageway along the length thereof remaining substantially constant. The forming bell is disposed between a fiber transport means for directing gaseously-entrained fibers into the bell former inlet at a high velocity and a forming surface positioned adjacent to the outlet of the forming bell and movable along a predetermined direction of movement for receiving the fibers passing through the forming bell passageway.

US Patent:

40144879, Mar 29, 1977

Filed:

Mar 31, 1976

Appl. No.:

5/672172

Inventors:

Imants Reba - Vancouver WA
Gerald Hugh Hogland - Estacada OR

Assignee:

Crown Zellerbach Corporation - San Francisco CA

International Classification:

B65H 1732

US Classification:

226 5

Abstract:

An improved system for directing a web of flexible material to a predetermined location, and more particularly, a system for directing the end or tail of a moving web into threading engagement with rolls forming a nip or the like. In this system a gas such as air is directed through a restricted opening under pressure whereupon it attaches itself to a flow attachment surface due to the "Coanda effect", so that it entrains ambient air and the moving web tail. In a preferred form of the system, after the web tail has been entrained and conveyed a predetermined distance, a substantial portion of the combined flow of the entraining gas and the entrained ambient air are diverted off toward a different direction. At the location of diversion, restraining means is provided for preventing the web tail from moving with such substantial portion of combined flow. Another aspect of the invention resides in orientation of the restricted opening and flow attachment surface so that the web entrained thereby defines a concave path.

US Patent:

39996964, Dec 28, 1976

Filed:

May 27, 1975

Appl. No.:

5/581306

Inventors:

Imants Reba - Vancouver WA
Gerald H. Hogland - Estacada OR
Fred L. Pollard - Portland both of OR

Assignee:

Crown Zellerbach Corporation - San Francisco CA

International Classification:

B65H 1732

US Classification:

226 7

Abstract:

A system for directing a web of flexible material to a predetermined location and more particularly to a system for directing the free end or tail of the web into threading engagement with rolls forming a hip or the like. In the system a gas such as air is directed through a restricted opening under pressure whereupon it attaches itself to a flow attachment surface due to the "Coanda effect", is directed to the predetermined location and entrains ambient air. The tail of the web is placed into the path of the moving gas and entrained thereby. The gas is moving at a velocity greater than the velocity of the moving web and thus the web tail is straightened out and directed to the predetermined location.