Patents by Inventor Donald R. Wilkinson
Donald R. Wilkinson 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: 5469871Abstract: Cigarettes and methods of making them, in which an insulated fuel element is combined with a substrate assembly comprising a substrate within a tube, combining a roll of tobacco with a plug of tobacco paper, combining the fuel element/substrate assembly with the tobacco/tobacco paper assembly, and combining the resulting combination with a filter element to produce filter cigarettes. Methods of constructing the various and preferred subassemblies are also disclosed.Type: GrantFiled: July 16, 1993Date of Patent: November 28, 1995Assignee: R. J. Reynolds Tobacco CompanyInventors: Vernon B. Barnes, Donald R. Wilkinson, Lloyd H. Hancock, Erwin Oesterling, Siegfried Schlisio, Werner Hinz
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Patent number: 5247947Abstract: A cigarette including a longitudinally segmented combustible fuel element, and a substrate carrying tobacco extract and glycerin positioned physically separate from the fuel element is disclosed. The substrate is a gathered paper-type material, and is positioned in a spaced apart relationship from the fuel element. One preferred smoking article of the present invention is a cigarette which comprises (i) a symmetrical and longitudinally segmented combustible fuel element; (ii) a physically separate aerosol generating means including at least one aerosol forming material; and (iii) means for securing, maintaining or retaining the fuel element within the smoking article.Type: GrantFiled: June 28, 1991Date of Patent: September 28, 1993Assignee: R. J. Reynolds Tobacco CompanyInventors: Jack F. Clearman, Robert L. Meiring, Donald R. Wilkinson
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Patent number: 4893637Abstract: Apparatus and methods are described for forming a composite member for use in making a smoking article. The apparatus comprises a forming device that comprises (a) an elongate structure having a curved inner surface that tapers from a larger proximal end to a smaller distal end, the proximal end of the structure being adapted to receive a support member and a layer of material which are fed simultaneously into the device, the tapering inward curved inner surface causing the edges of the fibrous layer to bend around the inner support member, and (b) a curved forming surface that causes a first edge of the material to fold over the support member while permitting the second edge to pass by the forming surface, the curved inner surface of the device further tapering to the distal end causing the second edge of the material to fold over the support member proximate to the first edge.Type: GrantFiled: September 15, 1987Date of Patent: January 16, 1990Assignee: R. J. Reynolds Tobacco Co.Inventors: Lloyd H. Hancock, Jesse A. Stigall, Donald R. Wilkinson
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Patent number: 4763673Abstract: Tobacco is reclaimed from filter cigarettes by applying sufficient pressurized air to the filter end of each cigarette to eject the tobacco from the cigarettes. The method for reclaiming the tobacco involves (a) transporting a succession of filter cigarettes along a predetermined path, in a discontinuous, indexing manner, (b) temporarily engaging the filter end of each cigarette with reciprocating mouthpiece means during the pause between indexed movements and (c) applying pressurized air to each engaged cigarette via the mouthpiece means to force the tobacco from the cigarette and into a suitable collection device. Preferred apparatus is disclosed for accomplishing this method.Type: GrantFiled: February 4, 1985Date of Patent: August 16, 1988Assignee: R. J. Reynolds Tobacco CompanyInventors: Vernon B. Barnes, Donald R. Wilkinson, John W. Shore, Ronnie G. Huff
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Patent number: 4664740Abstract: A tax stamping machine for applying heat activated tax decals to the bottom of packs of cigarettes in cartons utilizes an adjustable carton guide channel having an offset section and a heated stamp bar having a plurality of selectable patterns of heated platens. The cigarette carton guide channel is adjustable in both width and depth so that various sizes of cigarette packs in cartons can be handled. A carton stop bar and reset latch assembly are used to halt the travel of hand fed cartons along the guide channel while tax stamps or decals are applied to the packs within the cartons.Type: GrantFiled: June 6, 1985Date of Patent: May 12, 1987Assignee: R. J. Reynolds Tobacco CompanyInventor: Donald R. Wilkinson
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Patent number: 4539795Abstract: A machine for orienting, accumulating and positioning packages received from two sources for loading into containers has an oscillating member which oscillates between the two sources during which time it both receives packages from one source while participating in loading packages into a container from the other source. Associated with the oscillating member and with each source is an orienting mechanism which rotates packages received from its associated source so that they rest on a common one of their sides, an accumulating mechanism which collects the packages rotated by the orienting mechanism into a group of a predetermined number, a positioning mechanism which positions the grouped packages onto the oscillating member, and a loading mechanism which advances the positioned and grouped packages from the oscillating member into the container.Type: GrantFiled: July 26, 1983Date of Patent: September 10, 1985Assignee: R. J. Reynolds Tobacco CompanyInventor: Donald R. Wilkinson
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Patent number: 4263766Abstract: An improved machine for automatically applying transfers such as tax stamps to multiple packages contained in a carton is disclosed. The machine comprises a conveyor for advancing a carton through an opening station, where it is opened to expose the packages therein, through a stamping station, where tax stamps in the form of heat or water transfers or ink printing are applied to each of the packages by a movable platen, and through a closing station where the carton is closed and resealed. The machine is adjustable to accommodate a variety of carton and package sizes and to apply the transfers to a selected part of each package in the carton accurately, while using stock transfer sheets on which the transfers are mounted with a predetermined spacing that does not necessarily correspond to the spacing of packages within the carton.Type: GrantFiled: September 30, 1977Date of Patent: April 28, 1981Assignee: R. J. Reynolds Tobacco Co.Inventors: Max N. Baker, Watson M. Dufour, Julian R. Martin, John D. Welch, Donald R. Wilkinson, Marvin G. Woempner