David R Dunlap

US Patent:

51151146, May 19, 1992

Filed:

Apr 25, 1990

Appl. No.:

7/514449

Inventors:

George J. Paulonis - Hudson OH
David R. Dunlap - Claremore OK

Assignee:

ELTECH Systems Corporation - Boca Raton FL

International Classification:

B23K 900

US Classification:

219 99

Abstract:

An attaching assembly is disclosed which permits attachment of ceramic fiber to a back plate. The assembly includes a stud retainer plate having a perforation, such as at the center of the plate. The stud retainer plate can be affixed to a perforate backing element, e. g. , a metal mesh. On the side of the stud retainer plate opposite the backing element, there is a tube retainer. This tube retainer is secured to the stud retainer plate. An elongated, removable tube can be inserted into the tube retainer. A stud can be inserted through the removal tube, and through the retainer plate perforation and perforate backing element. The stud is then welded to a back plate, e. g. , a solid furnace wall. A refractory element inserted in the retainer plate perforation insulates the stud from the retainer plate to prevent arcing during welding. After welding, the removable tube, which during welding is surrounded by ceramic fiber, is removed, thereby providing a continuous ceramic fiber hot face covering the attachment assembly.

US Patent:

45719110, Feb 25, 1986

Filed:

Dec 12, 1983

Appl. No.:

6/560536

Inventors:

David R. Dunlap - Claremore OK
Eugene N. Brown - Broken Arrow OK

Assignee:

Refractory Anchors, Inc. - Broken Arrow OK

International Classification:

E04C 140

US Classification:

52509

Abstract:

An insulation supporting apparatus for use in attaching blankets of insulation to a surface, such as the wall of a high temperature furnace, including an elongated stud which can be attached at one end to the wall such as by welding or the use of a bolt, so that the stud extends perpendicularly from the wall, the stud having an elongated slot intersecting the plane of the stud longitudinal axis, and an elongated tine member slideably receivable in the slot in the stud so that the longitudinal axis of the tine extends substantially parallel the plane of the wall. The ends of the tine are pointed so that blankets of insulation can be impaled on the tine after which the stud and tines hold the insulation to th wall.

Address:

22882 Woodridge Dr, Claremore, OK 74019

Phone:

(918)3410464

VIN:

WBANV9C53AC390334

Make:

BMW

Model:

5 SERIES

Year:

2010