Patents Represented by Attorney Frederick W. Turnbull
  • Patent number: 4116314
    Abstract: An over running clutch having a ball that wedges against the interior of a circular race to move a pawl into engagement with a ratchet.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: September 26, 1978
    Inventor: Leonard Stanley Ackerman
  • Patent number: 4097046
    Abstract: A lacrosse stick head in which the lacings of the head are secured to flexible tabs one end of each of which is inserted into the material of the frame of the head.
    Type: Grant
    Filed: February 8, 1977
    Date of Patent: June 27, 1978
    Inventor: Elias Stewart Friant
  • Patent number: 4092384
    Abstract: The invention concerns a block fuel element consisting of only one carbon matrix which is almost isotropic of high crystallinity into which the coated particles are incorporated by a pressing process. This block element is produced under isostatic pressure from graphite matrix powder and coated particles in a rubber die and is subsequently subjected to heat treatment. The main component of the graphite matrix powder consists of natural graphite powder to which artificial graphite powder and a small amount of a phenol resin binding agent are added.
    Type: Grant
    Filed: February 26, 1975
    Date of Patent: May 30, 1978
    Assignee: Nukem GmbH
    Inventor: Milan F. Hrovat
  • Patent number: 4074116
    Abstract: A device for selection of compressors, condensers, expansion valves, and evaporators for air conditioning or refrigeration systems.
    Type: Grant
    Filed: October 14, 1976
    Date of Patent: February 14, 1978
    Inventor: William M. Ell
  • Patent number: 4068548
    Abstract: A method of cutting desired pieces from a heat-severable material in which a tool is provided to cut a shape corresponding to one projection of the pieces in one direction and to cut a second projection of the desired pieces in a direction at right angles to said first cut, and a unitary tool to perform the method.
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: January 17, 1978
    Inventor: Cray L. Ross
  • Patent number: 4047451
    Abstract: A variable speed device comprising a pair of discs driven from a source of power each disc having rack teeth forming its surface. The device including also a pinion in mesh with the rack teeth of each disc mounted to be movable radially of the disc to vary the speed of an output shaft in relation to the rotation of said disc.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: September 13, 1977
    Inventor: Leonard Stanley Ackerman
  • Patent number: 4044942
    Abstract: An advertising multiple use mailing folder or mailer including an envelope which may be twice used in furthering the completion of a business transaction.
    Type: Grant
    Filed: September 17, 1974
    Date of Patent: August 30, 1977
    Assignee: Double Envelope Corporation
    Inventor: Jack Edward Sherwood
  • Patent number: 4028823
    Abstract: A digging tooth provided with two points for use especially at the corners of a power digging bucket so that the shovel cuts better at its corners resulting in less binding of the bucket when making a second cut. This also results in better corners at the bottom of a narrow ditch.
    Type: Grant
    Filed: October 31, 1975
    Date of Patent: June 14, 1977
    Inventors: Gerald D. Edwards, Floyd B. Edwards
  • Patent number: 3994180
    Abstract: In a variable diameter driving sprocket for a chain drive change speed device comprising a plurality of circumferentially spaced radially movable toothed elements mounted on said driving sprocket over which the chain is threaded; a means to move the toothed elements radially which includes an adjusting gear or sprocket coaxial with said driving sprocket but free to rotate with respect to said driving sprocket, and differential means drivingly connecting said adjusting sprocket to said variable diameter driving sprocket.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: November 30, 1976
    Inventor: Leonard Stanley Ackerman
  • Patent number: 3983504
    Abstract: An improved filtering circuit connected to the inverting terminal of an operational amplifier having connected in parallel a first resistor and three series capacitors. Two series resistors are connected in parallel with the center capacitor and the junction between the two series resistor is connected to a fixed potential.
    Type: Grant
    Filed: November 21, 1975
    Date of Patent: September 28, 1976
    Inventor: Franklin Moy
  • Patent number: D243843
    Type: Grant
    Filed: August 13, 1975
    Date of Patent: March 29, 1977
    Inventor: Gerald D. Edwards
  • Patent number: D244138
    Type: Grant
    Filed: March 4, 1975
    Date of Patent: April 26, 1977
    Inventor: Ralph Mondragon
  • Patent number: D246802
    Type: Grant
    Filed: March 25, 1976
    Date of Patent: December 27, 1977
    Inventor: Ralph Mondragon
  • Patent number: D250208
    Type: Grant
    Filed: September 3, 1976
    Date of Patent: November 7, 1978
    Inventor: Ralph Mondragon