Patents Represented by Attorney George A Rolston
  • Patent number: 7008051
    Abstract: The invention provides an expanded ink supply system for inkjet printers. The expanded ink supply system fluidically supplies an ink cartridge, which is intermittently fluidically connected to an array of movable printheads. Described are various means for creating the necessary pressure to force the ink from the expanded supply to a print cartridge. In one described embodiment, the ink supply is in the form of a bag, placed at a level higher than the ink cartridge, thereby utilizing gravity to force the liquid ink via tubing into the ink cartridge's inner part fill port or alternatively, the cartridge's pump channel. Also described are steps to attach a fitting in the cartridge's inner part fill port or pump channel and steps for releasing trapped air from the ink supply system.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: March 7, 2006
    Inventor: Per G. Akermalm
  • Patent number: 5934447
    Abstract: A roller drive sprocket system, in which a drive roller mounts sprockets for driving a belt, and having a general cylindrical drive drum, semi-cylindrical grooves formed axially along the surface of the drive drum, sprockets formed of plastic with drive teeth for driving a belt, cylindrical metal keys located in the sprockets, spaced radially, the keys fitting in the semi-cylindrical grooves in the surface of the cylindrical drive drum, portions of the keys extending inwardly to interengage with the semi-cylindrical grooves.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: August 10, 1999
    Inventor: Alexander Dimitrius Kanaris
  • Patent number: 4788804
    Abstract: A skylight window having a window base frame to be received in a window opening, a window housing to receive glazing, and, a glazing frame to be attached to the housing for retaining the glazing, the base, housing and frame all being formed of extruded thermoplastic.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: December 6, 1988
    Assignee: Viceroy Homes Limited
    Inventor: Fred Haas
  • Patent number: 4781705
    Abstract: A mineral applicator adapted to be worn on the person and having a holder body adapted to be placed against the skin, a retaining device for retaining the holder body on the skin, and a plurality of mineral objects on the holder body for contacting the skin.
    Type: Grant
    Filed: June 16, 1987
    Date of Patent: November 1, 1988
    Assignee: Zyton Inc.
    Inventors: Charles G. Shepherd, Margaux A. Greenhouse
  • Patent number: 4779136
    Abstract: A reference image for use with color camera systems and having a support screen, an opening through the screen and a reference image object in registration with the opening, a light panel movably mounted on the screen, whereby the panel may be moved into a variety of different orientations with respect to the screen, and direct light towards the opening.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: October 18, 1988
    Inventor: Ferrand D. E. Corley
  • Patent number: 4776376
    Abstract: A method of slicing wood by moving a wooden workpiece on a linear path, and forcing one end against a blade directed longitudinally along the grain, applying pressure on both sides of the workpiece, on opposite sides of the blade by means of pressure pads, and, allowing the pressure pads to move relative to the blade, while maintaining equal spacing between themselves, so as to equalize the compressive force on both sides of the workpiece in the region of the blade, and an apparatus for carrying out the method.Also disclosed is a wood slicing blade with angled cutting edges, which is short and stiff, and a blade holder assembly arranged to tension the blade laterally.
    Type: Grant
    Filed: December 19, 1986
    Date of Patent: October 11, 1988
    Inventor: Troels A. Jaeger
  • Patent number: 4768316
    Abstract: A thermoplastic window having a window border to be received in a window opening, a first engagement device formed on the window border extending continuously along all sides, a window housing, a second engagement device extending continuously around all four sides of the housing, the second engaging device being interengageable with the first engagement device in mutually interlocking relation, and a locking strip for retaining the glazing.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: September 6, 1988
    Assignee: Viceroy Homes Limited
    Inventor: Fred Haas
  • Patent number: 4763757
    Abstract: A support device having two end members, a pair of spacer members with hinges at their outer ends and intermediate hinges at their inner ends and swingable between a stored position and an extended position, a pair of transverse support panels with hinges at their outer ends and intermediate hinges at their inner ends, the support panels being swingable between an upwardly stored position, and a downwardly extended position in which they lie in a common transverse plane, adjacent the upper edges of the spacer members, with the support panels resting on the upper edges of the spacer members.
    Type: Grant
    Filed: September 16, 1987
    Date of Patent: August 16, 1988
    Inventor: Kirk S. Cheney
  • Patent number: 4756030
    Abstract: A fluid controller for a fluid supply system such as the plumbing supply system for a bathroom comprises hot and cold fluid temperature sensors and flow sensors which are installed in respective ones of the hot and cold fluid supply pipes upstream of the fluid discharge outlet. Hot and cold fluid flow control valves operated by valve motors are also installed in such pipes. The sensors and motors are connected to a microprocessor including a comparator means which is operative to compare values programmed in a memory means with signals received from the sensors so as to generate control signals for the motors so as to obtain a desired fluid temperature and flow rate at the discharge outlet. The controller can be installed in an existing plumbing system without disturbing the existing faucets and manual control valves. Alternatively, the controller can be used in a new installation with or without manual control valves.
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: July 12, 1988
    Inventor: Steven J. Juliver
  • Patent number: 4751092
    Abstract: A method of processing a first type of product and a second type of product in a common chamber, by passing of a first type of product into the chamber and causing it to dwell for a predetermined first dwell time, and then passing a batch of a second type of product into the chamber and causing it to dwell for a predetermined second dwell time different from the first dwell time.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: June 14, 1988
    Assignee: Knud Simonsen Industries Limited
    Inventor: Guy E. Buller-Colthurst
  • Patent number: 4750695
    Abstract: A bag holder to hold a plastic bag with an open mouth and handles and having two side members, dimensioned to accommodate a bag with handles, a top rim on each said side member over which said open mouth of said plastic bag can be folded, tongues on each of said side members located below the plane of the top rims and on which handles of said bag may be attached; and, mounting means for mounting the side members on a support.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: June 14, 1988
    Assignee: Zyton Inc.
    Inventor: Margaux A. Greenhouse
  • Patent number: 4749347
    Abstract: Topology body apparatus having an extrusion head for extruding a settable plastic material, a mounting arm on which the extrusion head is mounted, a carriage bar on which the mounting arm is mounted, a base, extrusion head drive means for driving the extrusion head relative to the carriage bar, carriage drive means for driving the carriage bar relative to the base, and control means for controlling the extrusion head, the extrusion head drive means and the carriage drive means, separately and independently from one another, to procure three axes of movement of the extrusion head to progressively extrude and deposit portions of a three-dimensional solid body having a predetermined topography.
    Type: Grant
    Filed: October 21, 1986
    Date of Patent: June 7, 1988
    Inventor: Viljo Valavaara
  • Patent number: 4734013
    Abstract: A pressure intensifier for a fluid comprises at least three piston assemblies disposed along mutually parallel axes equiangularly disposed with respect to a central axis of the intensifier and radially equidistant therefrom. Each piston assembly has two opposed high pressure cylinders and low pressure cylinders. Fluid is supplied to the low pressure cylinders and discharged through a low pressure valve operatively coupled by a swash plate to the pistons of each assembly so as to be driven thereby. A high pressure collector, optionally in the form of a closed circuit, is provided for receiving high pressure fluid from the high pressure cylinders.
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: March 29, 1988
    Assignee: V-Tech Industries Inc.
    Inventor: Viljo K. Valavaara
  • Patent number: 4732028
    Abstract: A rotary cutting and forming apparatus for strip material, having rotatable upper and lower roll units, the units being connected for synchronous rotation, each of the units having a carrier member with at least one recess extending parallel to its central axis, and at least one die support block, the block being rotatably received within the recess, and having two ends, and a surface to which a die may be affixed, leading and trailing control pins on the block, extending on parallel spaced apart axes, and leading and trailing cam surfaces engaging respective leading and trailing control pins, to control the position of the blocks during at least part of their rotation.
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: March 22, 1988
    Inventor: Ernest R. Bodnar
  • Patent number: 4730818
    Abstract: A holding device for holding a workpiece in an adjustable position while one or more operations are carried out thereon comprises a base having an annular flange which is received in arcuate recesses provided for such purpose in a pair of mutually spaced and mutually opposed support arms. At their opposite ends, such support arms are provided with opposed concave recesses receiving a generally spherical member carrying a workpiece attachment plate on which a workpiece can be supported. A shaft extends through the support arms intermediate their ends and spring means associated with that shaft bias the support arms toward each other to retain the annular flange within the arcuate recesses and the generally spherical member within the concave recesses.
    Type: Grant
    Filed: February 5, 1987
    Date of Patent: March 15, 1988
    Inventor: Douglas A. Price
  • Patent number: 4726281
    Abstract: A multistage cylinder having a partial force mode, a full force extended mode, and a full force retracted mode, and having an outer cylinder closed at one end and open at the other, one or more intermediate cylinders located within the outer cylinder, and extendable and retractable with respect thereto, an inner drive member within the intermediate cylinder, and extendable and retractable with respect thereto, intermediate hydraulic fluid conduits in the drive member for flow of hydraulic fluid and from the intermediate cylinder, and an intermediate valve for controlling flow of fluid thereto, outer cylindrical hydraulic fluid supply and return conduits connecting directly with an outer cylinder, separate from the intermediate conduits, and an outer cylinder valve for controlling flow of fluid independent of the intermediate cylinder and a fluid flow barrier between the intermediate cylinder and the outer cylinder so that fluid from the intermediate cylinder is maintained out of contact with the outer cylinde
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: February 23, 1988
    Inventor: Quinto De Filippi
  • Patent number: 4717572
    Abstract: A process ing system for processing batches of different products in the same process conditions, and having chamber means having zones, processing conditions means for each zone, to procure uniform process conditions within each zone, including water treatment means in at least one zone, first and second separate side by side conveyors passing through the chamber, batch supports maovable on respective first and second conveyors, for carrying batches of products, conveyor movement means for moving said separate batch supports at different timings, to procure different transit and dwell times of different products within the same zones of the chamber, and, control means connected to the conveyor, and a method of processing products in such a system.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: January 5, 1988
    Assignee: Knud Simonsen Industries Ltd.
    Inventor: Guy E. Buller-Colthurst
  • Patent number: D505226
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: May 17, 2005
    Inventor: Manivan Larprom
  • Patent number: D523325
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: June 20, 2006
    Inventor: Robert Peter Ignagni
  • Patent number: D529191
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: September 26, 2006
    Inventor: Giovanni Careri