OTHER PRIOR ART
Crosier, Robert A.; National Engineer, "Braided Graphite Foil: The Asbestos Alternative"; January, 1992; pages 7-11.
Gibson, Sr., Vernon W.; Disclosure Document 083086; "COMPRESSION PACKING AND PROCESS OF FORMING SAME"; Aug. 7, 1979.
A flyer by the Slade Company discloses a fire resistant packing material designated "SLADE FOIL".
A test report by the Southwest Research Institute entitled "Fire Test for Evaluation of Valve Stem Packing"; Jun. 17, 1994.
A test report by the Southwest Research Institute entitled "Fire Test for Evaluation of Valve Stem Packing"; Jul. 21, 1994.
A test report entitled "The Cambridge Report of VOC Valve Emissions".
A test report entitled "The Cambridge Performance Report of VOC Valve Emissions"; May 25, 1994.
Aylsworth U.S. Pat. No. 1,137373 teaches a novel form of graphite and a process for its production. This invention
changes the physical orientation of flake graphite so that the flake graphite is greatly expanded in volume after treatment of the myriad of small leaves, which each flake is composed, opened up and separated like leaves of an open or partly
5 open book. These leaves however, are not completely separated from one another. The separation is accomplished by the entrapment of gas or air between the leaves of the expanded flakes, resulting in a graphite of reduced specific gravity and vastly increased bulk or volume.
10 Aylsworth U.S. Pat No. 1,191383 teaches the use of expanded graphite from Aylsworth U.S. Pat. No. 1,137373 compounded with a binder and other substances which can then be molded in various forms.
Crane U.S. Pat. No. 2,072,543 provides an improved
!5 packing fibrous material and method of fluid-tight packing as used in pumps and the like.
Barmack U.S. Pat No. 2,372,645 provides a method for applying insulation to electrical conductors such as wires and cables. The tape form of insulation is applied so as to
20 embrace the conductor as a sheath.
Slayter U.S. Pat No. 2,664,374 teaches a method for the fabrication of strands, cords, tubes and improved products.
Barnes U.S. Pat No. 3,011,933 provides a method of producing a foil-covered elongated member in the form of a
25 wire or tube having an external straight line, longitudinal seam. A plurality of forming rolls is employed to shape the foil sheet into a generally tubular element having a U-shaped cross-section.
Garner U.S. Pat. No. 3332,138 teaches a method and 30 apparatus for making precision sized tubing. This process involves forming the coated metal strip into a longitudinally seamed tube with a lapped seam and extruding a seamless plastic jacket over the outside of the formed tube.
OlstowsM U.S. Pat No. 3,333,941 teaches a method to 35 make a heat expandable composition. The expanded graphite material may be used as a flame retarding agent and is useful as a mulch agent
Garner U.S. Pat No. 3379,821 provides a cable with aluminum or other metal shielding strip pre-coated with 40 special adhesive polyethylene with the outer polyethylene jacket extruded under such temperature and pressure conditions so as to obtain firm adhesion over a portion only of the interface between the extruded jacket and the coated shielding layer.
45 OlstowsM U.S. Pat. No. 3,389,964 teaches a method of producing relatively low density graphite structures from compressed vermicular graphite.
Shane U.S. Pat. No. 3,404,061 teaches a novel form of
50 graphite and a process of producing the same. Shane further shows that threads or yarns can be woven, braided or otherwise worked into the thin, flat, flexible graphic sheet material.
OlstowsM U.S. Pat No. 3,409,563 teaches a process for 55 producing hyperconductive graphite structures by contacting vermicular expanded graphite with a fluid intercalation agent.
OlstowsM U.S. Pat. No. 3,414,381 provides a process for producing graphite structures using low temperature for go reexpanding compressed vermicular graphite.
Sanders U.S. Pat. No. 3,475,244 teaches a process for pressure-bonding compressed vermicular graphite structures to other relatively dense structures. The graphite is treated with a reexpanding agent and heated and pressed to the 65 structure for bonding.
OlstowsM U.S. Pat No. 3,492,197 teaches a method for preparing graphite by compressing expanded vermicular