Patents Represented by Law Firm Samuels, Gauthier, Stevens & Kehoe
  • Patent number: 4738037
    Abstract: The invention relates to a track maintenance vehicle having a levelling attachment secured to a transverse carrier member at its rear. The levelling attachment faces downwards and is at least partially flexible. For achieving satisfactory levelling of relatively loose snow as well as of encrusted or compacted snow, the levelling attachment comprises a leading portion of triangular cross-sectional shape secured to the transverse carrier member along a first triangle side. The second triangle side of this portion is formed as a rigid compaction surface extending downwards and rearwards from the transverse carrier member. Connected to a rear portion of the compaction surface is a plate-shaped flexible portion extending substantially parallel to the second triangle side in the relaxed state, and in a substantially horizontal direction when under load.
    Type: Grant
    Filed: August 6, 1986
    Date of Patent: April 19, 1988
    Inventor: Walter Haug
  • Patent number: 4735108
    Abstract: A power transmission device is provided. The device comprises a casing for receiving a torque input, output members arranged inside the casing, movable members provided movably around the output members respectively, one side face of each of the movable members forming a cam face, clutches adapted for connecting the casing with the output members, and a cam shaft fixed to the casing and located between the movable members, wherein the torque input of the casing is transmitted to the output members through two routes, i.e., through the cam and the movable members, and through the clutches. The power transmission device is further provided with several improved parts such as improved friction faces, resistant members, cam faces, and pin.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: April 5, 1988
    Assignee: Tochigifujisangyo Kabushikigaisha
    Inventors: Masao Teraoka, Osamu Ishikawa, Makoto Hagiwara
  • Patent number: 4735304
    Abstract: A scraper-chain conveyor channel section comprises a return trough and a conveyor trough. The return trough is constituted by a pair of side walls interconnected by a floor plate. A respective support bar is fixed to each of the side walls of the return trough. The support bars have portions extending upwardly beyond the side walls of the return trough. The conveyor trough is arranged between the upwardly-extending portions of the support bars. The conveyor trough is constituted by a pair of side walls interconnected by a floor plate. Respective connection means are provided for connecting the conveyor trough to each of the support bars. Each of the connection means includes a plurality of bolts and a plurality of clamping members. Each of the bolts is seated in a respective pocket in the associated support bar, and is engageable with a respective clamping member to force that clamping member into engagement with a respective clamping face on the conveyor trough.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: April 5, 1988
    Assignee: Gewerkschaft Eisenhutte Westfalia GmbH
    Inventors: Gunther-Dietmar Schoop, Franz Roling, Bernd Steinkuhl, Manfred Redder
  • Patent number: 4733780
    Abstract: A block of paired, side-gussetted, bottom-weld bags. Each bag has an opening on one side to facilitate the removal of individual bags from the block.
    Type: Grant
    Filed: July 8, 1987
    Date of Patent: March 29, 1988
    Inventor: Harold A. Jensen
  • Patent number: 4730633
    Abstract: This invention relates to shelters which are readily adaptable in size and configuration to define an environment, preferably about plants, to control the amount of radiation, humidity, temperature and ventilation and to inhibit intrusion into the defined environment by deleterious vectors such as insects, unwanted microorganisms, weed seeds and the like.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: March 15, 1988
    Inventor: George Greenbaum
  • Patent number: 4730541
    Abstract: A sensing system for a vibration isolation table. A sensor responsive to the position of the tabletop is spaced apart from the tabletop and provides an output corresponding to the position of the tabletop. The output is modified to provide a control signal and a valve responsive to the modified signal controls the flow of air into and out of an air isolator which supports the load.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: March 15, 1988
    Assignee: Technical Manufacturing Corporation
    Inventor: Geoffrey L. Greene
  • Patent number: 4729174
    Abstract: A device (gage, data station, and software) and method to measure mean radius and deviations from mean radius of nominally cylindrical or conical shapes in a plane perpendicular to the nominal axis of revolution using curvature measurements at uniformly spaced intervals about the circumference is described. The system divides the contour of interest into equal segments and measures the local curvature at each point. The group of measurements combines with a closure constraint to produce a condition of mathematical overcompleteness. This is used to minimize the accumulation of measurement error.
    Type: Grant
    Filed: July 15, 1986
    Date of Patent: March 8, 1988
    Assignee: PGL Corporation
    Inventors: Paul R. Caron, Gilbert Fain, Lee E. Estes
  • Patent number: 4727471
    Abstract: A robot arm with a vision system affixed thereto. A gripper acquires and object at an acquisition site and carries the object to a target site. During travel the position of the object is determined by the vision system viewing the object in two positions.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: February 23, 1988
    Assignee: The Board of Governors for Higher Education, State of Rhode Island and Providence
    Inventors: Morris R. Driels, Edward A. Collins, Jr.
  • Patent number: 4723406
    Abstract: This invention involves an expansible band construction which allows a wide latitude in the design of outer decorative shells, thereby permitting the simulation of chain link type bracelets and other popular styles not available before in an expansion band. This is accomplished by constructing the outer links of the band with a smaller width than the width of the inner link. The band in its contracted state will therefore have significant gaps between adjacent outer links.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: February 9, 1988
    Assignee: Textron, Inc.
    Inventor: Richard E. Ripley
  • Patent number: 4724173
    Abstract: A polyester coating applied to gel coated fiber reinforced plastic. The pester coating prevents blistering of the gel coat.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: February 9, 1988
    Assignees: The Board of Governors for Higher Education, State of Rhode Island, Providence Plantations
    Inventors: Thomas J. Rockett, Vincent C. Rose, Rachel Marino
  • Patent number: 4722272
    Abstract: A silk-screen printer wherein the clamp holding the silk screen may be adjusted along X, Y and Z axes.The screen is held on an arm secured to a cylindrical post by an anchor plate. The anchor plate is pivoted by means of adjustment bolts that extend through the plate into contact with the cylinder surface.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: February 2, 1988
    Assignee: Lambert Company Inc.
    Inventors: Frank Caruccio, Paul H. DeWynGaert, III
  • Patent number: 4721341
    Abstract: A cutting head for a selective cutting machine includes internally-fed spraying means including a high pressure water control means which is designed in such a way that only spray nozzles adjacent to cutting tools that are actually cutting are supplied with water under pressure. The water under pressure is supplied from a boom to the rotating cutting head via a piston whose free end surface is pressed, by the pressurized water, against a control surface provided on the cutting head. Said free end surface is formed with a control opening which overlaps control ducts provided in the control surface during rotation of the cutting head, thereby controlling the flow of pressurized water to the various groups of spray nozzles. Non-return valves, which keep the control ducts closed, when they are not aligned with the control opening of the piston, are located in the control ducts.
    Type: Grant
    Filed: October 9, 1986
    Date of Patent: January 26, 1988
    Assignee: Gewerkschaft Eisenhutte Westfalia GmbH
    Inventor: Gerhard Maschewski
  • Patent number: 4714679
    Abstract: A process for controlling the development of somatic embryos for either a self-replicative or a vine development mode. Somatic embryogenesis is initiated by placing the embryo in a medium conducive for self-replication. When the embryos have grown to a first stage, they are transferred to a medium with cytokinin activity. They continue to grow until they have grown to a second stage at which time they are transferred to a medium without cytokinin activity until they have grown sufficiently and can be transferred to a non-liquid growth medium.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: December 22, 1987
    Assignee: The Board of Governors for Higher Education, State of Rhode Island and Providence Plantations
    Inventor: William R. Krul
  • Patent number: 4713801
    Abstract: An audio device for automotive use is disclosed in which radio transmissions can be received and directly recorded on magnetic tapes, cassettes or discs. The device includes an in-dash combination AM-FM radio receiver and tape or cassette deck which is specially adapted to permit direct recording of radio transmissions on blank tape cartridges or cassettes.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: December 15, 1987
    Inventor: Arthur D. Hale
  • Patent number: 4712395
    Abstract: A barrel lock and a key for locking and unlocking the barrel lock. The lock has a hollow barrel with a plunger that reciprocates within the bore of the barrel. The plunger is urged forwardly by a bottom spring, and a deterrent ring is urged forwardly against the plunger by a top spring. The plunger has a shallow axial blind bore at its rear end and the deterrent ring has a central aperture, the diameter of the plunger bore being larger than the diameter of the ring aperture.The key has four elongated outer expanding fingers and an inner expander rod. The expanding fingers are sized and shaped so that they can pass entirely through the central aperture of the deterrent ring. When the the key is inserted into the barrel lock and the key handle is operated, the fingers radially expand and grip the inner surface of the lock plunger blind bore. As the handle is operated further, the expanding fingers longitudinally retract and draw the plunger rearwardly permitting the lock to unlock.
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: December 15, 1987
    Assignee: OMCO, Inc.
    Inventor: Anthony J. Agbay
  • Patent number: 4708394
    Abstract: As is known mineral, e.g. coal, is won from a mineral face with the aid of a winning machine guided for movement along a conveyor composed of individual pans joined end-to-end. The conveyor is advanced towards the face behind the machine by shifting rams linked to the pans. In accordance with the invention, the rams are connected to and disconnected from a supply of pressure fluid in a controlled manner to form a group composed of a predetermined number of rams which are simultaneously charged with pressure fluid and this group progresses along the working behind the machine step-by-step in a sliding fashion within and over larger bank-push groups of rams.
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: November 24, 1987
    Assignee: Gewerkschaft Eisenhutte Westfalia GmbH
    Inventors: Uwe Trox, Willy Kussel
  • Patent number: 4708531
    Abstract: A mine roof support has gap seals in the form of L-shaped plates on its roof cap and goaf shield. The side walls of the plates overlap at the junctures between the roof cap and the goaf shield and these walls are interconnected with pivot connections each of which is composed of complementary components fitted into openings in the walls. The components combine to form a pivot journal and and are locked to one another by a twist catch which can be released by relative rotation of the components.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: November 24, 1987
    Assignee: Gewerkschaft Eisenhutte Westfalia GmbH
    Inventor: Dieter Plenter
  • Patent number: 4706485
    Abstract: A portable carrier module for transporting work rolls and entry and exit guides to and from a cantilevered roll stand in a rolling mill. The carrier module remains removably mounted on the roll stand during the rolling operation, and includes integral roll cooling means automatically coupled to water supply conduits extending through the roll stand housing.
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: November 17, 1987
    Assignee: Morgan Construction Company
    Inventors: Martin Gilvar, Harold E. Woodrow, Camille S. Nasrah
  • Patent number: D294221
    Type: Grant
    Filed: July 1, 1985
    Date of Patent: February 16, 1988
    Assignee: Crawford Products, Inc.
    Inventor: Steven J. Sheftel
  • Patent number: D295124
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: April 12, 1988
    Assignee: Textron, Inc.
    Inventor: John Jaquish