Patents Represented by Attorney John A. Hamilton
  • Patent number: 4004351
    Abstract: A grain drying apparatus including a body member into which grain is fed, within which heated air passes through the grain bed to dry it, and from which it is discharged by a metering device, the retention time of the grain in the drying zone being determined by its rate of discharge, the discharge rate of the metering device being variable, and a modulating control system for regulating the metering device to vary its discharge rate in generally direct ratio to grain temperature attained within the drying zone, whereby continuous discharge of grain at a predetermined moisture content is obtained despite variations in the moisture content of the grain supplied to the drying zone.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: January 25, 1977
    Assignee: Gilmore-Tatge Manufacturing Co., Inc.
    Inventors: Douglas D. Sanneman, Ernest Stalder, Robert C. Chaffee
  • Patent number: 4005253
    Abstract: A grade-level enclosure for transformers and other electrical apparatus used in utility electric distribution systems, comprising a hollow, open-ended concrete box adapted to be partially embedded in the ground and to extend above ground level, and an open-bottomed cover for the box, whereby to complete the enclosure for the electrical apparatus, special provisions being made for supporting the apparatus in the enclosure, ventilating the enclosure interior efficiently, but preventing the insertion of foreign objects through the ventilation openings, and rendering access for installation, maintenance and servicing of the equipment easy and convenient, while at the same time providing a high degree of security against tampering or entry by unauthorized persons, and a high degree of safety against electrical shock or other injury.
    Type: Grant
    Filed: May 14, 1975
    Date of Patent: January 25, 1977
    Inventor: Gerald W. Walter
  • Patent number: 3998317
    Abstract: A wear detector for conveyor chains consisting of a tapered gauge member insertable laterally of the chain into an open link of the chain, its degree of entry being governed by the effective internal length of the link, which is in turn governed by the wear of the chain links or the pins connecting the links, and a device operable by entry of the gauge member more than a predetermined degree into the chain to give a signal, or to mark the worn link, or both. The detector functions effectively on a continuously moving conveyor chain, and its sensitivity may be easily adjusted to indicate any desired degree of chain wear.
    Type: Grant
    Filed: July 30, 1975
    Date of Patent: December 21, 1976
    Inventor: Arvil L. Stinnett
  • Patent number: 3998371
    Abstract: A spring edge for a furniture deck, the deck consisting of a wire fabric deck sheet resiliently supported over a rigid frame, the spring edge consisting of a series of vertically V-shaped spring elements distributed along the forward edge of the frame opening forwardly, with their apices being connected to the deck, each element consisting of a single strand of spring wire configurated to present a horizontally transverse top reach, downwardly and rearwardly inclined legs extending from each end of the top reach to the apex, horizontally transverse torsion legs extending from the lower end of each inclined leg, the torsion legs defining the apex of the element and being secured to the deck, and a forwardly extending bottom leg extending from the opposite ends of the torsion legs and being secured at their forward ends to the frame.
    Type: Grant
    Filed: March 31, 1976
    Date of Patent: December 21, 1976
    Assignee: Flex-O-Lators, Inc.
    Inventor: Lloyd E. Tieman
  • Patent number: 3995894
    Abstract: In a dump truck having a dump bucket pivotally mounted along one of its upper side edges to a bed, and a power device for tilting said bucket to dump its contents, said bed being supported by two axles carrying ground-engaging wheels, being pivotally mounted on one of said axles on a fore-and-aft axis, a stabilizer for locking the bed against tilting on its fore-and-aft axis during the dumping operation, the stabilizer consisting of cooperating ratchets and pawls carried respectively by the bed and pivoted axle and normally engaged to prevent tilting of the bed, the dump bucket being operable by movement thereof to its normal upright position to disengage the pawls and ratchets.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: December 7, 1976
    Assignee: Gilmore-Tatge Manufacturing Co., Inc.
    Inventor: Jerald W. Bishop
  • Patent number: 3994505
    Abstract: A shopping cart including a wheeled basket having a hinged cover and locks both for the cover and for the wheels. Mechanism is provided whereby the wheels are locked when the cover is open, and unlocked when the cover is closed, although the wheel lock may be operated manually if the cover is held open by overloading the cart. A key lock mechanism is provided for locking both the wheels and the cover in the event the user desires to leave the cart unattended.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: November 30, 1976
    Assignee: Lock-A-Cart, Inc.
    Inventor: Frances R. Balha
  • Patent number: 3994482
    Abstract: A spring edge for a furniture deck, the deck consisting of a wire fabric deck sheet resiliently supported over a rigid frame, the spring edge consisting of a series of generally V-shaped sinuous spring elements distributed along the forward edge of the frame, opening forwardly, the lower legs of the elements being fixedly related at their forward ends to the frame and deck, and the apices of the elements being connected to the deck for forward and rearward sliding movement, the upper legs of the spring elements being inclined upwardly and forwardly and supporting a transversely extending horizontal border wire at their upper ends.
    Type: Grant
    Filed: November 12, 1975
    Date of Patent: November 30, 1976
    Assignee: Flex-O-Lators, Inc.
    Inventors: John G. Platt, Robert O. Isaacs
  • Patent number: 3993280
    Abstract: A drafting stool having electric motors both for moving it along the floor parallel to the forward edge of a drafting table, and for changing the elevation of the seat. Provision is made for guiding its travel along the floor, for preventing overturning thereof, for initiating any desired adjusting movement by the occupant's lurching of his weight in various directions, and for bringing the stool to a halt at any desired position of adjustment either manually, or by means of preset limit control devices.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: November 23, 1976
    Assignee: Paul R. Distler
    Inventor: Richard M. Surbaugh
  • Patent number: 3986281
    Abstract: A safety system for garment pressers which have a head movable against a buck with a garment therebetween and steam vents opening through the head and buck, the safety system being operable to deactivate the press and raise the head in the event the operator's hand or arm should be caught in the press, and including an involuntary safety comprising a bar movable relative to the press during normal operation to engage a portion of the operator's hands or arms, if caught in the press, regardless of the attitude of the hands or arms, mechanism operable by such engagement to deactivate the press, possibly also including a voluntary, manually operable safety for deactivating the press intentionally, and a device for preventing either the involuntary or voluntary safety devices from being used to shorten the pre-set pressing cycle time to gain production at the expense of quality.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: October 19, 1976
    Inventor: Frank S. Darwin
  • Patent number: 3982737
    Abstract: A spring assembly for a seat having a rigid frame including front and rear rails, comprising a flexible deck sheet connected at its rearward edge to said rear frame rail, with its forward edge spaced rearwardly from the front frame rail, a series of angled levers spaced across the forward edge of the deck sheet and vertically pivoted thereon, the longer upper legs of the levers being inclined upwardly to be spaced at their upper ends above the front frame rail to form a bolster support, links connecting the free ends of the shorter lower legs of the levers to the front frame rail, and springs applying elastic tension to the deck sheet, lower level legs and links between the front and rear frame rails.
    Type: Grant
    Filed: April 9, 1975
    Date of Patent: September 28, 1976
    Assignee: Flex-O-Lators, Inc.
    Inventors: John G. Platt, Harmon W. Arnold, Lloyd E. Tieman, Robert O. Isaacs
  • Patent number: 3981034
    Abstract: A box spring assembly for a two-person bed consisting of a rectangular frame, a pair of flat, fabric-type spring sheets extending the length of the frame at opposite sides thereof so that each forms the mattress support for one person, the sheets being secured at their distal edges to the frame, and secured together at their contiguous edges by a series of laterally extending springs, the frame providing a vertical support for the springs generally at the level of the distal edges of the sheets.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: September 21, 1976
    Assignee: Flex-O-Lators, Inc.
    Inventors: Robert D. MacMorran, Lloyd E. Tieman, Raymond L. McQuitty
  • Patent number: 3978606
    Abstract: In combination with a fishhook having the head portion of a plastic worm lure inserted over the hook shank to a position adjacent the eye of the hook, a helical spring wire coil affixed coaxially at one end to the hook shank and adapted to be threaded into the lure in the manner of a screw, the object being to provide an extremely secure, but still resiliently yieldable, connection of the lure to the fishhook.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: September 7, 1976
    Inventor: Royal W. Riggs
  • Patent number: 3977103
    Abstract: A clamp bar for drapery tables consisting of a length of extruded metal which may be cut to any desired length, and along which a series of manual handle-operated clamps may be secured at any desired intervals for securing an edge of a sheet of drapery fabric thereto, the clamps being applicable separately, a lever member extending substantially the full length of the bar and being pivotal relative thereto about a longitudinal axis to release all of the clamps simultaneously, and a power mechanism operable from a central station to pivot the lever.
    Type: Grant
    Filed: July 9, 1975
    Date of Patent: August 31, 1976
    Inventor: Robert V. Strickland
  • Patent number: 3973369
    Abstract: A roofing shingle having apertures formed therein in upwardly spaced relation from the lower or free edges of the tab or tabs thereof adapted to receive the lower corners of the tabs of the shingles in the next higher course of shingles, when said shingles are applied in courses, in order to anchor said tabs to reduce any likelihood of damage commonly resulting when free, unanchored shingle tabs are peeled away from the roof by high winds. The apertures may permit the passage of some rain or other moisture therethrough, but any such moisture is trapped and safely disposed of by a special backing applied to the shingle, the backing also serving as a "dry-ply" between the shingles and the sheathing boards of the roof.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: August 10, 1976
    Assignee: Billy G. Powers
    Inventor: Robert L. Smith
  • Patent number: 3967697
    Abstract: A crankcase oil drainage and collection device consisting of a threaded drainage plug especially designed to present an enlarged head at its outer end normally having sealing contact with the crankcase, but not to initiate any appreciable drainage of oil until the enlarged head has been retracted to a substantial distance from the crankcase, and a container for oil having a special neck engageable over the plug head when said plug is partially retracted, the neck having a funnel extension engageable with the crankcase to direct oil from the crankcase to the container, the plug being operable to effectively open the crankcase drain opening when it is screwed still further from the crankcase, but before it is disengaged from the crankcase.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: July 6, 1976
    Inventor: Manfred H. Guenther
  • Patent number: 3964186
    Abstract: A drapery table having a clamp bar extending the width thereof and supported thereon parallel to the forward table edge, or to a reference line of the table, clamp devices for securing one edge of a large sheet of fabric to the clamp bar, and a power device for moving said bar laterally to draw said fabric sheet across the table, so as to insure that the line of the fabric at the table edge, or at the reference line, is precisely parallel to the clamped fabric edge. Devices are provided for automatically stopping the bar at the limits of its travel, for adjusting the limits at which bar travel is stopped, for adjusting the bar into precise parallelism with the table edge, or the reference line thereof, and providing for allowing individual application of the clamp devices, but for simultaneous release of all of the clamp devices from a single station.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: June 22, 1976
    Inventor: Robert V. Strickland
  • Patent number: 3964735
    Abstract: An adaptor for converting a vehicle spring suspension for use with a torsion bar connecting an axle housing affixed to the midpoint of the suspension spring directly to the vehicle chassis, when the suspension was not previously equipped with a torsion bar, the adaptor consisting of a plate adapted to be mounted between the original axle spring mount, which is not adapted to anchor one end of a torsion bar, and the spring itself, the adaptor plate having means anchoring it rigidly on the spring mount, and having projections operable to receive and anchor one end of a torsion bar.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: June 22, 1976
    Inventors: Oliver L. Wright, Wilbur D. Wright
  • Patent number: 3964621
    Abstract: A lifter and carrier for large cylindrical bales of hay consisting of a flat, wheeled bed adapted to be transported by a towing vehicle, and having a horizontal rearward edge spaced above the ground, and a cable winch carried by the bed, the cable of the winch having at its extended end a device adapted to be secured in a hay bale resting on the ground, whereby the bale may be tilted upwardly and forwardly over the rearward edge of the bed to be supported and secured on the bed.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: June 22, 1976
    Assignee: Leland B. Bock
    Inventor: John H. Youngkamp
  • Patent number: 3958357
    Abstract: A package for fish bait of the odor type commonly known as "dough bait" consisting of a hollow cylindrical tube of foraminous material adapted to contain the bait, and secured closed at both ends, said tube being adapted to be threaded over the point of a fishhook. The means securing at least one end of said tube may consist of a resiliently yieldable binding, whereby when the hook is inserted through said binding, it assists in securing and retaining the package on the hook.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: May 25, 1976
    Inventor: Robert Frank
  • Patent number: 3958393
    Abstract: A package for transporting live fish consisting of a pliable, open-mouthed bag having an elastic band secured around its mouth and partially gathering said mouth, and the mode of use of said package consisting of filling the bag partially with water and fish, twisting the sack intermediate the water and the open mouth to form a seal, and everting the portion of the bag between its mouth and the twist around the portion thereof containing water and fish. An open, buoyant ring may be secured in the sack mouth by the elastic band to float the bag in an aquarium to acclimate the fish to the water temperature of the aquarium.
    Type: Grant
    Filed: July 11, 1974
    Date of Patent: May 25, 1976
    Inventor: Kevin F. Whitener