Jack Robinson

US Patent:

44625260, Jul 31, 1984

Filed:

Jun 14, 1982

Appl. No.:

6/388374

Inventors:

Kenneth R. Dumont - Charlotte NC
Jack R. Robinson - Pineville NC

Assignee:

Midrex Corporation - Charlotte NC

International Classification:

B26F 300
B02C 1322
B26D 124
B23D 1906

US Classification:

225 4

Abstract:

A briquet sheet from a briquetting machine is subjected to shearing forces to sever the longitudinal webs of the sheet and subsequently, to bending forces to fracture the remaining transverse webs. The separator apparatus includes a pair of shear rolls with alternate shear lands and smaller diameter idler rolls. The shear rolls are followed by a pair of lobed separator rolls.

US Patent:

45419817, Sep 17, 1985

Filed:

Jun 13, 1983

Appl. No.:

6/504013

Inventors:

James J. Lowery - Charlotte NC
Neil D. Plotkin - Scotch Plains NJ
Jack Robinson - Waxhaw NC

Assignee:

Celanese Corporation - New York NY

International Classification:

B29D 2304

US Classification:

2642091

Abstract:

The present invention provides microporous hollow fiber with improved structural and performance characteristics and a process and apparatus for preparing the improved fiber. The microporous hollow fiber possesses substantially uniform wall thickness, cross-sectional dimensions and porosity. Such characteristics are obtained by melt spinning hollow fiber precursor under defined conditions in a substantially vertically upward direction and subjecting the precursor to a symmetrical quenching step which may be achieved using a hollow annular structure surrounding the precursor. The structure, which is connected to a source of gas, has one or more openings on its inner surface that distribute the gas against the precursor in a substantially uniform manner.

US Patent:

44056885, Sep 20, 1983

Filed:

Feb 18, 1982

Appl. No.:

6/349795

Inventors:

James J. Lowery - Charlotte NC
Neil D. Plotkin - Scotch Plains NJ
Jack Robinson - Waxhaw NC

Assignee:

Celanese Corporation - New York NY

International Classification:

D02G 300

US Classification:

428398

Abstract:

The present invention provides microporous hollow fiber with improved structural and performance characteristics and a process and apparatus for preparing the improved fiber. The microporous hollow fiber possesses substantially uniform wall thickness, cross-sectional dimensions and porosity. Such characteristics are obtained by melt spinning hollow fiber precursor under defined conditions in a substantially vertically upward direction and subjecting the precursor to a symmetrical quenching step which may be achieved using a hollow annular structure surrounding the precursor. The structure, which is connected to a source of gas, has one or more openings on its inner surface that distribute the gas against the precursor in a substantially uniform manner.