Patents by Inventor Harold D. Thomas

Harold D. Thomas 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).

  • Patent number: 4658570
    Abstract: A bundling device for bundling elongate articles such as firewood with plastic film including a wood support for fixedly supporting the articles to be bundled, a film support to support a roll of the plastic film to be wrapped around the articles and a drive for rotating the film support around the articles on the wood support to wrap the film around the wood carried on the wood support. The film support includes a brake to maintain tension in the film as it is being wrapped around the articles and which increases the tension in the film when it is desired to break the film after the articles have been wrapped.
    Type: Grant
    Filed: March 9, 1984
    Date of Patent: April 21, 1987
    Inventor: Harold D. Thomas
  • Patent number: 4040497
    Abstract: The tractor frame and chassis includes a recessed front portion which will accommodate an implement such as a mower attachment over which the tractor is driven for attachment and detachment of the implement. An implement frame on the front is raised and lowered by means of an electric motor and pivoted frame members. An internal combustion engine mounted on the rear of the tractor drives large rear wheels mounted on individual off-set axles extending from an individual axle housing which is driven from a center transmission. A power take-off from the engine drives a belt which extends forwardly around idler pulleys having tension adjustment thereon. The engine drives a hydraulic pump which operates a hydraulic motor and transmission arrangement mounted on the chassis frame generally beneath the seat of the tractor. This provides stability and permits the use of rear mounted implements such as plows as well as front mounted implements such as plows or mowers.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: August 9, 1977
    Assignee: Tri Tractor Manufacturing Co., Inc.
    Inventor: Harold D. Thomas