Patents Represented by Law Firm Dunlap, Codding & McCarthy
  • Patent number: 4190994
    Abstract: A two-piece clip, utilized to maintain a concrete filler panel positioned in a cavity formed between a double-tee roof or floor member and a wall partition over which the double-tee member extends, comprises a female portion fastened to the undersurface of the double-tee within the cavity and above the wall partition, and a male portion which is lockingly engaged to the female portion after positioning the filler panel in the cavity. The clip is movable in relation to the filler panel during normal flexing of the double-tee member relative to the partition wall.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: March 4, 1980
    Inventors: Paul A. Marsh, Jr., Tom A. Thomas, III
  • Patent number: 4185875
    Abstract: An apparatus for crushing fragments of asphalt removed from a roadway by a paved roadway planing apparatus includes a grid upon which the fragments are deposited and a crushing tool having a plurality of cutting bits mounted on a rotating drum for movement along circular paths intersecting the grid. The crushing apparatus can be towed behind the paved roadway planing apparatus to receive the asphalt removed from the roadway from the paved roadway planing apparatus and to redeposit the crushed fragments on the roadway.
    Type: Grant
    Filed: October 4, 1978
    Date of Patent: January 29, 1980
    Assignee: CMI Corporation
    Inventors: George W. Swisher, Jr., Thomas L. Steele
  • Patent number: 4174949
    Abstract: In a conveyor apparatus for conveying particulate material from an input end for discharge from an output end disposed vertically higher than the input end, the improvement comprising a burner assembly, including a flame burner connected to the conveyor apparatus, for directly heating the particulate material in the conveyor apparatus via the flame burner in one position thereof, and for indirectly heating the particulate material via the products of combustion only of the flame burner in one other position thereof. A further improvement consists of an improved exhaust control system wherein the velocity of the gases exiting from the conveyor apparatus is rapidly decreased to induce precipitation of substantially all particulate material entrained therein prior to exhaustion to the atmosphere.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: November 20, 1979
    Assignee: CMI Corporation
    Inventor: George W. Swisher, Jr.
  • Patent number: 4174181
    Abstract: An improved method and apparatus for producing hot mix asphalt wherein flights provided in a mixer drum for cascading aggregate and asphalt across the mixer drum are constructed to establish a plurality of cascade zones, having differing cascade densities, in different portions of the mixer drum. High density cascade zones are provided to maximize the transfer of heat to aggregate; to shield cooler portions of the drum from hotter portions thereof, and to capture fines which would otherwise pass through the drum.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: November 13, 1979
    Assignee: CMI Corporation
    Inventors: David L. Garbelman, William H. Minor, Arthur G. Shaw
  • Patent number: 4171147
    Abstract: A construction machine is provided with a flywheel having a torque limiter which permits the flywheel to slip when a rotationally driven cutting tool of the machine is halted. The torque limiter is spring loaded to eliminate the need for adjustment which might otherwise be occasioned by wear.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: October 16, 1979
    Assignee: CMI Corporation
    Inventors: George W. Swisher, Jr., Donald W. Smith, John F. Phillips
  • Patent number: 4169500
    Abstract: An improved modular air conditioning apparatus featuring selective panel enclosures, plug-in controls, orientation selection and servicing capability for the simultaneous provision of air conditioning to a first room area and a second room area, the apparatus disposable between wall partitions or the like separating the first and second room areas. The apparatus comprises a frame assembly having a first open box frame and a second open box frame, each having three access sides. A blower and heat exchanger are disposed in an operating section of each of the open box frames, and these are removable through an access port provided by the removal of an intake grille disposed at one of the access sides on each of the open box frames. Riser pipes disposed in a vertical riser duct connect with other like units and supply hot or chilled water to heat exchangers.
    Type: Grant
    Filed: August 9, 1978
    Date of Patent: October 2, 1979
    Assignee: International Environmental Mfg. Co.
    Inventor: Alvin S. Braver
  • Patent number: 4169550
    Abstract: An emergency medical kit having a plurality of pockets and straps which are designed to hold medical equipment, the pockets being selectively closable to prevent the loss of the equipment retained therein. In an unfolded position, the medical kit can be spread upon a flat surface, or suspended from a hanger, such that the medical equipment is readily accessible to medical personnel. In a folded position, the medical kit is attachable to a person's back so that the medical equipment and supplies can be transported to areas inaccessible via motor vehicles.
    Type: Grant
    Filed: May 12, 1977
    Date of Patent: October 2, 1979
    Assignee: Emergency Medical Equipment Incorporated
    Inventor: Paul K. Williams
  • Patent number: 4169033
    Abstract: An improved electroplating cell comprising a cathode coaxially aligned with an anode in a solution containing metal ions, the cathode having a plurality of vane sections extending substantially radially therefrom at spaced intervals along the length thereof.
    Type: Grant
    Filed: June 19, 1978
    Date of Patent: September 25, 1979
    Assignee: RKC Corporation
    Inventor: Kenneth M. Dunagan
  • Patent number: 4162694
    Abstract: The present invention provides a method for rendering the environment about a container containing vapors of a combustible liquid relatively safe for blacksmithing operations by introducing an oxygen-depleted gas into the container and removing the oxygen-depleted gas and the vapors of the combustible liquid from the container to displace oxygen from the container and reduce the hazard of explosion.
    Type: Grant
    Filed: July 15, 1977
    Date of Patent: July 31, 1979
    Inventor: Oscar D. Caldwell
  • Patent number: 4159465
    Abstract: A tire pressure monitor wherein a drop in the air pressure within the tire of a vehicle wheel is utilized to complete an electrical circuit including a signal lamp. The pressure in the tire fluidly communicates with a bellows mounted on the wheel and having a fixed end and a free end such that the tire pressure provides an expansive force on the free end of the bellows. A compressed helical spring bears against the free end of the bellows to provide a compressive force on the free end of the bellows so that the bellows is compressed when the tire pressure drops. The free end of the bellows is mechanically linked to a flexible strip which is supported, but not clamped, at two positions disposed about the linkage to the bellows so that the strip is flexed by a compression of the bellows. An extension of the strip is pivoted against a slip ring via the flexing to complete the electrical circuit.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: June 26, 1979
    Inventor: Creel W. Hatcher
  • Patent number: 4153851
    Abstract: A rotor and base, rotatingly connected, are each provided with a plurality of magnet assemblies. The magnet assemblies on one of the rotor and base are fixed and the magnet assemblies on the other of the rotor and base are moved radially in synchronization with the rotation of the rotor to produce a torque on the rotor.
    Type: Grant
    Filed: July 14, 1977
    Date of Patent: May 8, 1979
    Assignee: Orin W. Coburn
    Inventor: Jiri J. Hovorka
  • Patent number: 4147436
    Abstract: An improved method and apparatus for producing hot mix asphalt utilizing new aggregate and a previously manufactured and laid asphalt mix which has been reduced to form recyclable aggregate, wherein the new aggregate is fed into the input end of a rotating mixer drum and cascaded repeatedly through a flame extending from the input end of the mixer drum to a first medial portion thereof and the recyclable aggregate is fed radially into the mixer drum at a second medial portion thereof intermediate the first medial portion and the output end of the mixer drum, the new aggregate shielding the mixer drum from the flame and confining the flame to the portion of the mixer drum between the input end and the first medial portion thereof.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: April 3, 1979
    Assignee: CMI Corporation
    Inventors: David L. Garbelman, William H. Minor, Arthur G. Shaw
  • Patent number: 4145864
    Abstract: A motor control circuit for controlling the operation of an electric lawnmower comprising an operator sensor responsive to the bridging of first and second operator contacts mounted on the lawnmower handle to provide a motor actuate signal and a power control circuit responsive to the motor actuate signal to connect the blade motor to a power source.
    Type: Grant
    Filed: January 6, 1977
    Date of Patent: March 27, 1979
    Inventor: Albert H. Brewster, Jr.
  • Patent number: 4144356
    Abstract: A friedcake food product bonded to a stick member wherein a dough having suitable tacky character is placed on the stick member so as to surround a first stick portion, a second stick portion projecting from the dough portion. The dough is fried in deep fat for a controlled period of time so that the dough is fried while the dough portion immediately contacting the first stick portion is maintained in a tacky state to retainingly bond the fried dough portion to the stick member.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: March 13, 1979
    Inventor: Diana G. McDaniel
  • Patent number: 4140420
    Abstract: A portable grade averaging apparatus comprising an averaging bar assembly that serves as an elevation control reference for a track supported road working machine, one end of the averaging bar assembly being pivotally supported by a forward walking beam and the other end of the averaging bar being pivotally supported by a rear track assembly that serves as a track walking beam. A grade sensor assembly supported on one side by the road working machine contactingly engages the averaging bar assembly for directing the elevation of one side of the road working machine to establish the elevation of a working tool supported by the road working machine. A lifting bracket supported by the road working machine serves to lift the grade averaging apparatus into a grade clearing position while the machine is being maneuvered into a cutting position.
    Type: Grant
    Filed: March 16, 1978
    Date of Patent: February 20, 1979
    Assignee: CMI Corporation
    Inventors: George W. Swisher, Jr., Thomas L. Steele
  • Patent number: 4139318
    Abstract: A method and apparatus for planing a paved roadway wherein a main frame is drivingly supported by track assemblies and a planer assembly is disposed in cutting engagement with a top portion of the paved roadway to produce a new roadway surface. An elevation positioning assembly is provided for raising and lowering the main frame in response to an external control reference such as a string line, and a cross slope positioning assembly is provided for raising and lowering one side of the main frame relative to the other side thereof for maintaining a selected cross slope. The planer assembly comprises a planing cutter that is partially surrounded by a hood that forms a material directing compartment, and spray nozzles produce a vapor mist within the compartment. A floating moldboard is yieldingly forced into contact with the roadway to the rear of the planer assembly and cooperates with a reclaimer assembly to receive and transport the removed pavement material to a selected depository.
    Type: Grant
    Filed: March 31, 1976
    Date of Patent: February 13, 1979
    Assignee: CMI Corporation
    Inventors: Herbert E. Jakob, Richard A. Silbernagel
  • Patent number: 4138767
    Abstract: An improved apparatus for decasing food links comprising an accelerator assembly imparting initial feedthrough velocity, a preconditioner that heats the casings to facilitate removal, a casing slitter assembly, a casing drive assembly, and a stripping head assembly featuring directed air jets and meshing gripping gears that pull the casings away from the links. The accelerator and driving assemblies cooperate to impart high velocity to the food links while minimizing product damage in a machine that assures complete operator safety. The casing slitter assembly provides a pivoting slitter head that accurately follows the shape of the food link, slitting the casing without damaging the food link. An adjustable guide assembly provides parallel axial alignment of the food links with the meshing gripping gears.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: February 13, 1979
    Assignee: Actionite Company
    Inventor: Charles E. Stiles
  • Patent number: 4136964
    Abstract: Apparatus for simultaneously mixing and conveying particulate material, the apparatus comprising a housing having an input end and an output end disposed vertically higher than the input end, means for feeding the particulate material into the input end of the housing, a conveyor disposed within the housing and having a plurality of lifting surfaces provided with perforations therethrough so that a portion of the particulate material being lifted by each lifting surface descends through the perforations and is mixed with particulate material being lifted by lifting surfaces disposed therebelow, and means for discharging the mixed particulate material from the output end of the housing.
    Type: Grant
    Filed: April 14, 1977
    Date of Patent: January 30, 1979
    Assignee: CMI Corporation
    Inventor: George W. Swisher, Jr.
  • Patent number: 4135863
    Abstract: An improved impeller for a pump of the type wherein the impeller is sealed within a pump housing and driven by a rotating external drive magnet magnetically coupled to an impeller magnet forming a portion of the impeller.
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: January 23, 1979
    Assignee: Little Giant Corporation
    Inventors: Lee W. Davis, James S. Hollingsworth, Leo L. Roberts
  • Patent number: 4134708
    Abstract: A wind driven power plant for the generation of electric power comprising a rotor, a shield, and a fin mounted on a vertical, central shaft, the fin and shield adjustably interconnected via a cog and gear track arrangement affording variable relative alignment of the fin and shield to position the shield relative to the wind. A constant rotor rotation rate is achieved by varying the masking thereof by the shield to compensate for wind speed variations. A hydraulic rotation rate control system senses the rotation rate of the rotor and generates a signal permitting the adjustment of the relative orientation of the fin and the shield. The rotor is coupled to a conventional electric generator for the generation of electric power.
    Type: Grant
    Filed: December 22, 1976
    Date of Patent: January 16, 1979
    Inventors: Bradley O. Brauser, Stanley O. Brauser