Patents by Inventor Theophilus K. Seiberling
Theophilus K. Seiberling has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4851063Abstract: The herein described invention relates to a preparing of tires where a part of the tire is cured by exposure to electron irradiation or other means of radiation which have the same curing effect on the part. The irradiation is effected in a continuous operation in which the source of radiation and said part are moved continuously relatively to one another.Type: GrantFiled: June 27, 1986Date of Patent: July 25, 1989Assignees: Mildred Kelley Seiberling, Frances S. Voke BuchholzerInventor: Theophilus K. Seiberling
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Patent number: 4756782Abstract: An improved retreaded tire which is less expensive and lighter weight and which can be cured in less time results from the use of cushion gum layers which have been subjected to electron irradiation or other means of radiation having the same curing effect thereon.Type: GrantFiled: May 6, 1986Date of Patent: July 12, 1988Inventor: Theophilus K. Seiberling
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Patent number: 4221253Abstract: Selected portions of a tire, either before or after assembly with other components of the tire, are exposed to electron irradiation to effect at least a partial cure of a portion thereof. This tire, with its precuring treatment is then molded and the curing of the tire is completed by conventional heat curing methods with sulfure present in the rubber.Type: GrantFiled: April 20, 1979Date of Patent: September 9, 1980Assignees: Mildred Kelly Seibering, Frances S. VokeInventor: Theophilus K. Seiberling
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Patent number: 4202717Abstract: Strands of steel bead wire or the like are individually surrounded with rubber and the rubber is then partially cured sufficiently by irradiation so that the rubber remains moldably plastic and the final cure will completely cure the rubber. Each bead core when completed is often enclosed in fabric. The completed bead assembly is incorporated in the carcass of a tire. When the tires, including the carcass, tread, etc., are cured, the rubber in the beads is completely cured and the beads are securely bonded to the balance of the tire.Type: GrantFiled: September 13, 1976Date of Patent: May 13, 1980Assignees: Mildred Kelley Seiberling, Frances S. VokeInventor: Theophilus K. Seiberling
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Patent number: 4176702Abstract: Tread stock is partially cured by irradiation before assembly in the tire, so as to shorten the curing time of the tire in the mold and thereby create substantial savings.Tires are retreaded by applying ribbons of tread stock over the carcass prepared in any conventional manner, and then completing the cure without the use of a mold.Curing or partial curing may be effected by electron irradiation or other irradiation which changes the molecular structure of the rubber. Progressive irradiation is disclosed by which an object is repeatedly irradiated to attain a desired cure. Shielding of one or more portions of a green tire or tire element is disclosed to prevent the irradiation from curing the shielded rubber. Other methods of curing may be preferable in some operations.Curing (1) a portion of the area of tread stock and (2) curing a portion of the thickness of tread stock are disclosed herein.Type: GrantFiled: March 7, 1977Date of Patent: December 4, 1979Assignee: Mildred Kelly SeiberlingInventor: Theophilus K. Seiberling
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Patent number: 4166883Abstract: The inner surface of a green tire provided with an air-sealing liner, is cured or partially cured to produce a steam- and water-resistant surface, and the tire after such treatment is cured in a usual press without an air-bag or bladder.One or more plies of a tire, usually the outer fabric plies, are partially cured before assembly in the tire, to insure that plies so located are cured, without over-curing inner and outer portions of the tire.New tires are made by placing a carcass, whether green or partially cured, in a mold and extruding rubber over the outer surface of this carcass to fill the mold, and then giving the final cure to the resulting tire.Tires are retreaded by applying ribbons of tread stock over the carcass prepared in any conventional manner, and then completing the cure without the use of a mold.Retreaded tires are cured by placing a carcass prepared in any conventional manner, in a mold, extruding tread stock into the mold around the carcass, and then curing.Type: GrantFiled: March 20, 1978Date of Patent: September 4, 1979Assignee: Mildred Kelley SeiberlingInventor: Theophilus K. Seiberling
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Patent number: 4139405Abstract: The inner surface of a green tire provided with an air-sealing liner, is cured or partially cured to produce a steam- and water-resistant surface, and the tire after such treatment is cured in a usual press with or without an air-bag or bladder.One or more tread layers or outer fabric plies, are partially cured before assembly in the tire, so as to shorten the curing time of the tire in the mold and thereby create substantial savings.New tires are made by placing a carcass, whether green or partially cured, in a mold and extruding rubber over the outer surface of this carcass to fill the mold, and then giving the final cure to the resulting tire.Tires are retreaded by applying ribbons of tread stock over the carcass prepared in any conventional manner, and then completing the cure without the use of a mold.Retreaded tires are cured by placing a carcass prepared in any conventional manner, in a mold, extruding tread stock into the mold around the carcass, and then curing.Type: GrantFiled: July 6, 1976Date of Patent: February 13, 1979Assignee: Mildred Kelley SeiberlingInventor: Theophilus K. Seiberling
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Patent number: 3933553Abstract: The inner surface of a green tire provided with an air-sealing liner, is cured or partially cured to produce a steam- and water-resistant surface, and the tire after such treatment is cured in a usual press without an air-bag or bladder.One or more plies of a tire, usually the outer fabric plies, are partially cured before assembly in the tire, to insure that plies so located are cured, without over-curing inner and outer portions of the tire.New tires are made by placing a carcass, whether green or partially cured, in a mold and extruding rubber over the outer surface of this carcass to fill the mold, and then giving the final cure to the resulting tire.Tires are retreaded by applying ribbons of tread stock over the carcass prepared in any conventional manner, and then completing the cure without the use of a mold.Retreaded tires are cured by placing a carcass prepared in any conventional manner, in a mold, extruding tread stock into the mold around the carcass, and then curing.Type: GrantFiled: September 7, 1973Date of Patent: January 20, 1976Assignee: Mildred Kelley SeiberlingInventor: Theophilus K. Seiberling
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Patent number: 3933566Abstract: The inner surface of a green tire provided with an air-sealing liner, is cured or partially cured to produce a steam- and water-resistant surface, and the tire after such treatment is cured in a usual press without an air-bag or bladder.One or more plies of a tire, usually the outer fabric plies, are partially cured before assembly in the tire, to insure that plies so located are cured, without over-curing inner and outer portions of the tire.New tires are made by placing a carcass, whether green or partially cured, in a mold and extruding rubber over the outer surface of this carcass to fill the mold, and then giving the final cure to the resulting tire.Tires are retreaded by applying ribbons of tread stock over the carcass prepared in any conventional manner, and then completing the cure without the use of a mold.Retreaded tires are cured by placing a carcass prepared in any conventional manner, in a mold, extruding tread stock into the mold around the carcass, and the curing.Type: GrantFiled: March 25, 1974Date of Patent: January 20, 1976Assignee: Mildred Kelley SeiberlingInventor: Theophilus K. Seiberling