Patents by Inventor John R. Bevins

John R. Bevins 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).

  • Handrail for aircraft belt loader
    Patent number: 4759437
    Abstract: A handrail for an aircraft belt loader in which a pair of parallel support arms pivotally support a rigid rail member with a variable-length link converted to be non-parallel with the support arms when the handrail is erect or operative. When the handrail is collapsed, the link is shortened and a compression spring inside of the link is further compressed so that maximum erecting force is applied when the handrail is stowed.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: July 26, 1988
    Assignee: FMC Corporation
    Inventor: John R. Bevins
  • Side guide for aircraft belt loader
    Patent number: 4756402
    Abstract: An improved side guide for an aircraft belt loader having a vertical plate member positioned adjacent to and extending along side the belt conveyor frame which plate is supported by a pair of links, one of which has a slot and a cam surface terminating in a notch. A pin attached to the plate member extends through the slot and a lug affixed to the plate member engages the cam surface as the plate member is moved laterally to elevate the plate member, the lug dropping into said notch to lock said plate member in an elevated position.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: July 12, 1988
    Assignee: FMC Corporation
    Inventor: John R. Bevins
  • Blocked change gear transmission and improved blocker and jaw clutch assembly therefor
    Patent number: 4192196
    Abstract: An improved, blocked, change gear transmission having an input shaft normally driven by a one-way prime mover and an output shaft normally connected to a driven device is provided. The improved blocked transmission utilizes at least one improved blocker and jaw clutch assembly which allows engagement of a selected ratio gear under static conditions, i.e., when the driven device is at rest and the blocked transmission is in neutral.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: March 11, 1980
    Assignee: Eaton Corporation
    Inventors: Edward J. Bogema, John R. Vandervoort, John R. Bevins