Donald A Gessler

US Patent:

6739826, May 25, 2004

Filed:

Feb 25, 2002

Appl. No.:

10/083787

Inventors:

Donald A. Gessler - Verona PA

Assignee:

Kvaerner U.S. Inc. - Pittsburgh PA

International Classification:

B65G 5904

US Classification:

4147971, 294 655, 414 21, 414626, 414736, 414737

Abstract:

A system for transferring a steel slab from a first roller table to a second roller table by lifting the top slab from a stack of slabs on the first table, and then transferring and lowering the slab onto the second table. Specifically, a gantry-type bridge trolley mechanism having suspended electromagnets is provided that is motor driven on a cantilevered runway over the slab unpiler table and the furnace table. A stabilizer system minimizes sway of the electromagnets and the slabs.

US Patent:

43760520, Mar 8, 1983

Filed:

Feb 23, 1981

Appl. No.:

6/236741

Inventors:

Donald A. Gessler - Verona PA

Assignee:

Dravo Corporation - Pittsburgh PA

International Classification:

B01D 1102

US Classification:

210511

Abstract:

There is disclosed a manifold assembly for a rotary solvent extractor formed of an elongated fluid distribution trough or conduit divided into a plurality of fluid distribution subsections by intermediate gate members wherein each fluid distribution subsection is in fluid communication with a fluid supply conduit. A deflector plate is disposed therebelow beneath a manifold assembly to permit for the adjustment of the angle of fluid discharge.

US Patent:

45632731, Jan 7, 1986

Filed:

Mar 27, 1981

Appl. No.:

6/248046

Inventors:

Donald A. Gessler - Verona PA

Assignee:

Dravo Corporation - Pittsburgh PA

International Classification:

B01D 2904

US Classification:

210 94

Abstract:

There is disclosed a screening assembly for separating fines from a miscella stream including same and comprised of a screening element angularly disposed in a housing assembly beneath an inlet conduit means and over a miscella collection zone.

US Patent:

43930271, Jul 12, 1983

Filed:

Sep 8, 1981

Appl. No.:

6/300190

Inventors:

Donald A. Gessler - Verona PA

International Classification:

B01D 1102

US Classification:

422269

Abstract:

There is disclosed a rotor assembly for a rotary solvent extractor comprised of segmental inner, outer and side wall assemblies provided with positioning elements for facile field erection on support beams with the segmental inner, outer and side cell walls being prefabricated and shipped in stacked relationship to the job site for field erection.

US Patent:

44129769, Nov 1, 1983

Filed:

Sep 8, 1981

Appl. No.:

6/300380

Inventors:

Donald A. Gessler - Verona PA

Assignee:

Dravo Corporation - Pittsburgh PA

International Classification:

B01D 1102

US Classification:

422270

Abstract:

There is disclosed an improved wheel housing assembly comprised of a wheel, a wheel axle and an axle housing wherein the wheel axle is formed of wheel and housing shaft portions with the axis of the wheel shaft portion being parallel to and slightly displaced or offset from the axis of the housing shaft portion whereby rotation of the housing shaft portion within a housing member permits the wheel shaft portion to be rotated about the axis of the housing shaft portion thereby to permit elevational adjustment of the wheel of the wheel assembly with respect to the horizontal.