Patents Represented by Law Firm Gravely, Lieder & Woodruff
  • Patent number: 4996739
    Abstract: A thrust bearing assembly for a hinge structure having two geared hinge members and a clamp member. The geared hinge members are maintained in rotatable, intermeshing relation along their adjacent longitudinally extending edges by the clamp members to permit smooth and uniform movement of the hinge structure. The thrust bearing assembly of the present invention includes a pair of non-metallic interconnected inserts arranged in side-by-side order to extend laterally across and inhibit relative longitudinal movements between the hinge members. The interconnected inserts are configured to facilitate their insertion in and removal from the hinge structure while maintaining the hinge members in mesh.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: March 5, 1991
    Inventor: Austin R. Baer
  • Patent number: 4995324
    Abstract: A system for recovery of the heat value of waste material, that heretofore has been wasted through landfill disposal, but in which the collected bales of waste material are passed through a bale breaker to release the waste material into a free condition so it can moved in a free flowing stream into a conveyor-type storage unit for movement to a grinder which reduces the mix of waste material to a substantially uniform particle size prior to being air moved into a boiler for recovery of the heat value which on burning produces steam to drive a generator to produce electrical power for energizing the power consumers in the system, with any excess being fed to an external power grid.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: February 26, 1991
    Inventor: Robert M. Williams
  • Patent number: 4993647
    Abstract: A material separator apparatus for obtaining refined material subjected to a first grind reduction which is moved into the separator where the large and/or heavier particles of the material are separated out and returned by gravity to fall back into the first grind reduction for further reduction while the finer ground material is subjected to a second separation by a rotary separating device having an array of spaced members which allow the passage of particles smaller than the spacing between members and the larger particles are refused passage and fall back for further reduction.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: February 19, 1991
    Inventor: Robert M. Williams
  • Patent number: 4993733
    Abstract: A three wheel recumbent vehicle having the steering pivot point of the front axle tilted forwardly about 8.degree. from perpendicular, causing the vehicle from the pivot point back to lean into a turn, and also having the front axle bar constructed with a low center section and end members which radiate upwardly and backwardly to provide room for the user's feet and to add stability on turns by increasing the distance between the center line of the vehicle and the point where the outboard tire touches the road.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: February 19, 1991
    Inventor: Keith Eilers
  • Patent number: 4991801
    Abstract: A body support strap in which a body to be supported is positioned in the strap and the strap is attached to a structural support in any desired position by employing any one of the angularly related web members which receive a screw or bolt to secure the support strap in the position dictated by the angular relation of the strap to the web selected for use.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: February 12, 1991
    Inventor: Terry N. Trumbull
  • Patent number: 4977524
    Abstract: Electronic measuring gauge and apparatus therefor comprising in combination apparatus and method for use in inspecting and determining vehicle body elevational position relative to the suspension which supports the vehicle body from the wheels or the floor on which the wheels rest. Components are provided to store and present alignment and body elevation measurement points for subsequent call up to suit a specific vehicle presented for inspection and a measuring device for finding the measurements at the measurement points. The apparatus and the method of its use increases the accuracy of inspection and reduces the time required to perform the linear measurements to assist in vehicle wheel alignment operations.
    Type: Grant
    Filed: January 3, 1989
    Date of Patent: December 11, 1990
    Assignee: Hunter Engineering Company
    Inventors: Timothy A. Strege, Donald A. Schmieley
  • Patent number: 4976008
    Abstract: A multiple piece thrust bearing assembly for a hinge structure having two hinge members and a clamp member. The hinge members are rotatably joined along their adjacent longitudinally extending edges by intermeshing gear segments which are held together by the clamp member to permit smooth and uniform movement of the hinge members. The multi-piece thrust bearing assembly of the present invention comprises a thrust bearing member and bearing inserts arranged between the thrust bearing member and each of the hinge members for improving durability of the thrust bearing assembly and, thereby, the hinge structure. The thrust bearing member of the bearing assembly is formed from a non-metallic material which extends laterally across the hinge members to inhibit their longitudinal movement relative to each other.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: December 11, 1990
    Inventor: Austin R. Baer
  • Patent number: 4974371
    Abstract: A dry wall power sander having a reciprocating sanding head driven by pulsing solenoids with a ball and socket connection between the head and an elongated handle to allow movement of the head in two directions but not rotatary motion. Brake means are provided for locking head in a predetermined position with respect to the handle.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: December 4, 1990
    Inventor: John S. Conboy
  • Patent number: 4970971
    Abstract: A method for disposing by incineration of oil contaminated waste material after removal of solids of various kinds by performing multiple steps in its handling wherein the composite material is first subjected to a first classification step for extracting a high percentage of contaminant free material. After subjecting the material to a second classification cyclone where the gases that are used to transport the ground matter can be separated while the solids are subjected to classification by the use of a vibratory screen where the paper, fluffy waste, and similar material can be separated from the smaller and harder particulate components. The separated components are subjected to individual impact grinding steps prior to being recombined in the combustor where incineration takes place.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: November 20, 1990
    Inventor: Robert M. Williams
  • Patent number: 4960335
    Abstract: The interior of an antifriction bearing is isolated with an enclosure having a case which fits into the outer race of the bearing and primary and secondary lips which establish a barrier along a sealing surface that is located beyond the inner face of the bearing. The primary lip, which is presented toward the interior of the bearing, does not actually contact the sealing surface, but does have pumping cavities which direct lubricant, that migrates along the sealing surface, back toward the interior of the bearing. The secondary lip projects away from the primary lip and actually contacts the sealing surface. The case, primary lip and sealing lip are all molded from a common polymer as an integral unit. Where the journal around which the bearing fits ends beyond one end of the bearing, a polymer cover may be snapped over the enclosure at that end of the bearing to provide an extra measure of isolation.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: October 2, 1990
    Assignee: The Timken Company
    Inventors: Dennis L. Otto, Richard O. Dimit
  • Patent number: 4958932
    Abstract: An apparatus for measuring the distance between two locations on a surface within a cavity includes a sheath which is inserted into the cavity and a scope which extends through the sheath. Through the scope, one from a remote location may observe the surface as well as reference marks which appear within the field of view on each side of the optical axis. These reference marks are aligned with opposite sides of that which is to be measured on the surface. In addition, the apparatus includes two point sources of light located along opposite sides of the scope with each source being located behind a lens that is presented toward the surface which is observed within the field of view. The lenses project their sources of light into the field of view as rays which come into focus on the surface.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: September 25, 1990
    Assignee: McDonnell Douglas Corporation
    Inventors: Jerry T. Kegelman, Joseph C. Kroutil, Rodney Lusk
  • Patent number: 4953913
    Abstract: A seat base is interposed between a supporting surface, such as the sling-type seat of a wheelchair, and a cushion or even the user, it having a lower contour which generally matches the contour of the supporting surface and a upper contour which provides a comfortable seating surface or gives a desired shape to an overlying cushion. The lower contour is established by a plurality of transversely directed ribs, whereas the upper contour is established by transversely directed panels located between the ribs. The polymer material from which the seat base is formed has uniform thickness and as a consequence the ribs create grooves that open out of the upper surface to separate the panels.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: September 4, 1990
    Inventor: Robert H. Graebe
  • Patent number: 4953841
    Abstract: Mixed book signatures are fed into a machine which transports them one after the other past a camera where an image of each is captured. Each captured image is directed to an electronic computer which has stored within its memory images of limited areas of interest from selected signatures, as well as the location of each limited area within the overall signatures. As to each captured image, the computer compares the stored image with it, attempting to match each stored image with that location in the captured image corresponding to the location for the stored image. If the captured image identifies with a stored image, a controller activates a reject device along the conveyor, and that device diverts the identified signature from the conveyor. A separate reject device exists for each stored image, so like signatures are diverted and isolated at the same locations along the conveyor.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: September 4, 1990
    Assignee: World Color Press, Inc.
    Inventor: Kenneth J. Polarek
  • Patent number: 4943001
    Abstract: A tube-type heat exchanger has two tubesheets, each provided with a multitude of bores, and tubes which extend between the tubesheets at their bores, their hollow interiors opening into the bores. Each tube at its ends is joined to the tubesheets along fillet welds which, being free from crevices, eliminate the build up of deposits and corrosion which commonly develop in the crevices of heat exchangers. To assemble the heat exchanger, each tube is passed through a bore in one of the tubesheets and advanced toward the other tubesheet, its leading end being inserted into a socket at the end of a bore in the other tubesheet. Then the leading end of the tube is welded to the tubesheet at which it is located. This leaves the trailing end of the tube in the bore of the tubesheet through which the tube was initially inserted, and that bore likewise terminates at a socket. The trailing end of the tube is machined down from within the bore until it extends no farther than the socket at the end of the bore.
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: July 24, 1990
    Assignee: Nooter Corporation
    Inventor: John J. Meyer
  • Patent number: 4940214
    Abstract: A furnace maintains metal in a molten condition as a melt, and part of the melt is exposed in a charging well where lightweight solid scrap is introduced into the furnance. A vortex generator imparts a vortex to the melt within the well, so that lightweight solid scrap is quickly submerged in the well. The vortex generator includes an impeller which rotates within the well and actually creates the vortex. In addition, it has an elevator from which the impeller is suspended as well as a drive motor for turning the impeller, with the motor being on the elevator. An elevator frame serves to guide the elevator and the elevator frame is in turn connected to a trolley which runs along a track that passes over the charging well, but also extends well beyond it.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: July 10, 1990
    Assignee: Gillespie & Powers, Inc.
    Inventor: John R. Gillespie
  • Patent number: 4938615
    Abstract: A mill roll is supported at its roll necks on tapered roller bearings, each having several cones and corresponding cups and rows of tapered rollers between the raceways of each cone and cup. Each bearing also has rib rings located at the ends of its cups to provide surfaces against which the large diameter ends of the rollers in its several sets bear. The cups and rib rings are clamped together within a chock, and they, in turn, capture the several rows of rollers. The cone raceways taper downwardly away from the roll body and lie within a single conical envelope having its center along the axis of rotation for the bearing. This arrangement allows the chock, which carries the cups, rib rings and rollers, to be passed over the cones on the roll neck. The roll body is ground while the roll is supported on the bearings that are within the chocks and with the bearings in a condition of preload. This eliminates practically all eccentricity, so runout is maintained at a minimum.
    Type: Grant
    Filed: October 26, 1989
    Date of Patent: July 3, 1990
    Assignee: The Timken Company
    Inventor: Mark E. Baker
  • Patent number: 4938155
    Abstract: A method for disposing by incineration of waste material containing sludge and garbage of various kinds which when combined results in a composite waste material prepared by performing multiple steps in its handling wherein the composite material is first subjected to a grinding step for thorough intermixing of the sludge that may contain a high percentage of moisture with garbage that can contain very little moisture. After grinding, the composite waste material is processed in a cyclone where the gases that are used to transport the ground matter can be separated while the solids are subjected to classification by the use of a vibratory screen where the paper, fluffy waste, and similar materials can be separated from the smaller and harder particulate components. The separated components are subjected to individual impact grinding steps prior to being recombined in the combustor where incineration takes place.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: July 3, 1990
    Inventor: Robert M. Williams
  • Patent number: 4936442
    Abstract: The present invention is directed to a box beam carrier composed of essentially two facing channel members with a series of openings in each of the channel members with the openings in aligned pairs to receive a preformed pocket which is snap-fitted in the pair of openings for ease of insertion or removal and so formed with the carrier that cleaning fluid is encouraged to flow through the pockets and remove labels and contaminants from the containers supported in the pockets. The pockets are of a nonmetallic material for the protection of containers against scuffing, chipping, or scratching that would be particularly detrimental to containers formed of glass or other hard surface-type containers.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: June 26, 1990
    Assignee: Barry-Wehmiller Company
    Inventor: Louis Von Till
  • Patent number: D311666
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: October 30, 1990
    Assignee: Great Western Manufacturing Co.
    Inventor: Alfred N. Burke
  • Patent number: D315197
    Type: Grant
    Filed: August 26, 1987
    Date of Patent: March 5, 1991
    Assignee: Koken Manufacturing Company, Inc.
    Inventor: Kenneth Brandis