Patents by Inventor Frederick Arthur Bolton

Frederick Arthur Bolton 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: 4000796
    Abstract: A braking device for retarding and controlling the speed of moving objects such as cartons, pallets and the like, travelling down an inclined roller conveyor system. The device comprises a primary roll journalled in a housing and having a peripheral surface actuable by a said moving object and a secondary roll journalled within the housing actuable by the primary roll. The secondary roll is loosely journalled in a bracket pivotally mounted on an axle coaxial with the primary roll and is biased by an adjustable pressure plate having a bevelled portion at one end to an at-rest position in proximity to the primary roll. Rotation of the primary roll under the weight of an object travelling thereon rotates the secondary roll by frictional interengagement against the bias of the pressure plate whereby the secondary roll becomes wedged between said primary roll and the pressure plate bevelled portion for retarding the rotation of the primary roll.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: January 4, 1977
    Assignee: Arcan Eastern Limited
    Inventors: Frederick Arthur Bolton, James Louis Eckebrecht