Patents Assigned to Nova
  • Projector apparatus
    Patent number: 4838686
    Abstract: Projector apparatus including a light source, a projection head and a projection stage aperture for an object, the image of which is to be produced. The aperture is situated in the ray path between the light source and the projection head. An ellipsoidal mirror is situated in the light path between the light source and the aperture. One focal point of the ellipsoidal mirror substantially coincides with the light source and the other focal point of the mirror substantially coincides with the projection head. The projection head includes a deflection means. The projection head is situated substantially in a plane constituting a normal plane to the aperture plane and containing the front edge line of the aperture, as observed in the generally horizontal projection direction.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: June 13, 1989
    Assignee: Optica Nova ONAB AB
    Inventor: Stig Berglund
  • Beam-type work station system
    Patent number: 4838177
    Abstract: A work station suitable for mounting electrical and/or communication equipment including a straight, elongate hollow support beam of rectangular cross-section. Hollow support legs mount the beam in a horizontal position above a floor. Support brackets are detachably connected to one or both sides of the beam and these brackets include vertical leg portions that are bolted to the side of the beam and further arm portions that extend outwardly and upwardly. Rigid work surfaces are mounted on outer sections of the outwardly and upwardly extending arm portions. The work surfaces are positioned horizontally away from and above the top of the support beam. A housing can be provided to mount display and key pad equipment on the beam side of the work surface so that a lower portion of the display and key pad equipment is positioned below a horizontal plane defined by the top of the work surface.
    Type: Grant
    Filed: April 29, 1987
    Date of Patent: June 13, 1989
    Assignee: Nova-Link Limited
    Inventor: Antonius A. Vander Park
  • Patient transfer arrangement
    Patent number: 4837872
    Abstract: A transfer system including a specially-equipped bed for transferring a patient from a reclining position on the bed to a seated position on a wheelchair or to a standing position on the floor.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: June 13, 1989
    Assignee: Nova Technologies, Inc.
    Inventors: Paul DiMatteo, Robert Segnini
  • Fluidized bed combustion system
    Patent number: 4836116
    Abstract: A fluidized bed combustion system particularly suited for use in a residential or light industrial heating system comprising a fluidized bed combustor housing a combustion chamber wherein fuel is burned to generate hot flue gas, a heat exchanger disposed inside of the combustion chamber, a particulate collector for removing fine particles entrained in the flue gas before the flue gas is vented to the atmosphere, and a fan for supplying air into the combustion chamber. The combustor features an insulated non-adiabatic combustion chamber with a cooling and heat exchange in the combustion zone and in the free-board area above the combustion zone. Electric heating means are disposed within the fluidizing region of the combuston chamber to provide the capability of heating the slumped bed during shut down to maintain bed temperature above the ignition point.
    Type: Grant
    Filed: December 17, 1987
    Date of Patent: June 6, 1989
    Assignee: The Technical University of Nova Scotia
    Inventors: G. David M. MacKay, Gordon S. Trivett
  • Screw and nut device equipped with a rotation brake
    Patent number: 4832550
    Abstract: In a device for bringing about rotational braking in a screw and nut device incorporating a nut, which is rotatable and displaceable relative to a threaded bar, and a helical spring enclosing the bar, which spring at braking is clamped against the bar, for effecting a big braking moment and a small wear in the thread of the bar, there is arranged a helical element with a loose fit in the thread groove of the bar, which element extends radially outside the thread flank tip. The helical spring is futhermore arranged with radial pretension of the thread flank tip between the winding turns of the helical element.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: May 23, 1989
    Assignee: SKF Nova AB
    Inventor: Sven W. Nilsson
  • Railway panel replacement method and apparatus with temporary track
    Patent number: 4827848
    Abstract: The invention concerns a method and apparatus for replacing railway panels, including switches by providing a pair of cars adapted to carry a temporary track, the replacement panel and gantries, the car carrying the gantries being located over the panel required to be replaced and the gantries located in position; the old panel is raised by the gantries, the temporary track is located in the vacant space and the car carrying the new panel is rolled on to the temporary track and the new panel raised by the gantries, the temporary track removed and the new panel dropped into position.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: May 9, 1989
    Assignee: R A Nova Inc.
    Inventor: Peter G. Kusel
  • Peat pellets
    Patent number: 4829045
    Abstract: Peat is provided in the form of pellets for use in absorbing liquids and breaking emulsions. The hydrophilic/hydrophobic properties of the pellets may be varied, depending on the manner of drying. Calcium sulphate may be used as a binder, fire-retardant, absorbency enhancement, and emulsion breaker.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: May 9, 1989
    Assignee: Nova-Huskey Research Corporation, Ltd.
    Inventor: Peter B. Fransham
  • Mounting device with a clamping sleeve
    Patent number: 4824277
    Abstract: A device for securing a first machine element to a second machine element comprising a clamping sleeve disposed between said machine elements having first and second opposed clamping surfaces forming opposing angles .alpha. and .beta. with the axis of said sleeve, one of the machine elements having complementary clamping surfaces confronting and engaging said first and second clamping surfaces, the angles (.alpha., .beta.) formed between the sleeve axis and said opposed clamping surfaces being smaller than the friction angle in each associated clamping contact whereby relative rotation of said sleeve and one of the machine elements produces a clamping action over substantially the entire length of said sleeve.
    Type: Grant
    Filed: June 19, 1987
    Date of Patent: April 25, 1989
    Assignee: SKF Nova AB
    Inventor: Rune Adolfsson
  • Invalid transfer arrangement
    Patent number: 4821352
    Abstract: An arrangement of a wheelchair with a movable seat and leg rest and a bed equipped with transfer apparatus provided with rollers, a movable sheet and lift arms, for transporting an invalid comfortably across the bed to a sitting position in the wheelchair. The invalid can also be transferred to a standing position at the end of the bed.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: April 18, 1989
    Assignee: Nova Technologies, Inc.
    Inventors: Paul DiMatteo, Charles F. Chubb, Robert Segnini
  • Device for coupling dentures to tooth crowns
    Patent number: 4820158
    Abstract: A denture can be coupled to a sleeve-like socket of a tooth crown by a dentent member a first portion of which is anchored in the denture and a sleeve-like second portion of which is receivable in the socket. The second portion has an open end which is remote from the first portion, a conical internal surface which diverges in a direction toward the open end and a conical external surface which diverges in a direction away from the open end. The detent member is made of a tough and wear-resistant plastic material, such as a fiber-reinforced polyamide or polycarbonate. The shank of a screw is driven into a tapped bore of the first portion of the detent member and the head of the screw has a conical outer surface which can expand the second portion of the detent member in response to rotation of the screw so that the head is driven into the second portion by way of the open end.
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: April 11, 1989
    Assignee: Nova-Pro Attachment GmbH
    Inventor: Frank Speckmann
  • Invalid transfer arrangement
    Patent number: 4819283
    Abstract: An arrangement of a wheelchair with a movable seat and leg rest and a bed equipped with transfer apparatus provided with rollers, a movable sheet and lift arms, for transporting an invalid comfortably across the bed to a sitting position in the wheelchair. The invalid can also be transferred to a standing position at the end of the bed.
    Type: Grant
    Filed: December 2, 1986
    Date of Patent: April 11, 1989
    Assignee: Nova Technologies Inc.
    Inventors: Paul DiMatteo, Charles F. Chubb, Robert Segnini
  • Driveway truck restraining apparatus
    Patent number: 4818170
    Abstract: A driveway truck restraining apparatus including a sealed casing embedded partially in the ground, a ram mounted in the casing for movement between a storage position and an operative position blocking the travel of the ICC bar located on the back of a truck, a pneumatic piston and cylinder assembly mounted on the loading dock and being operatively connected to the ram, and an indoor signal assembly mounted on the inside of the loading dock and an outdoor signal assembly mounted on the outside of the loading dock, the signal assemblies being electrically connected to the piston and cylinder assembly to provide control signals indicating the position of the ram and the absence or presence of a truck at the loading dock.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: April 4, 1989
    Assignee: Nova Technologies, Inc
    Inventors: Patrick W. Fisher, James P. Hagen, Jr.
  • Person transfer arrangement
    Patent number: 4813088
    Abstract: A transfer system including a transfer module that operates in conjunction with a compatibly equipped bed and a standard wheelchair to transport a person from a supine position on the bed to a seated position on the wheelchair.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: March 21, 1989
    Assignee: Nova Technologies, Inc.
    Inventors: Paul DiMatteo, Charles F. Chubb, Robert Segnini
  • Method and apparatus for mixing two or more components such as immiscible liquids
    Patent number: 4806019
    Abstract: Method and apparatus is disclosed for mixing two or more materials normally considered difficult to evenly and homogeneously intermix such as, for example, viscous fluids. The apparatus is also effectively usable to entrain a gas in a liquid and for ceramic particle formation. The mixing portion of the apparatus includes a mixing chamber in the form of a narrow gap between two walls movable relative to one another. The mixing chamber has individual inlets thereto at one end thereof for individually introducing the different elements to be mixed therein and an outlet at the opposite end for discharge therefrom of the mixed elements. The mixing chamber is preferably an annular chamber in the form of a truncated cone and defined by spaced apart walls, one of which is movable relative to the other by rotation. The distance between the walls defining the mixing chamber is preferably selectively adjustable.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: February 21, 1989
    Assignee: Nova Scotia Research Foundation Corporation
    Inventors: Gerald D. Lutwick, James D. MacAulay
  • Driving wheel with a belt pulley
    Patent number: 4804354
    Abstract: The invention relates to a driving wheel for car engines or the like, incorporating a gear wheel, which is intended to cooperate with a cogged belt, and a pulley attached to one side of the gear wheel and arrested to this. The gear wheel molded from a plastic or similar material having a coefficient of thermal expansion higher than steel's coefficient of thermal expansion and by having a helix of steel or another material with a coefficient of thermal expansion similar to or identical with that of steel embedded in the gear of the wheel radially inside the cogs, whereby the helix has such strength and dimension that it determines the thermal expansion properties of the gear rim.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: February 14, 1989
    Assignee: SKF Nova AB
    Inventor: Stig Hallerback
  • Bradykinin antagonist peptides
    Patent number: 4801613
    Abstract: The substitution of the L-Pro at the 7-position of the peptide hormone bradykinin or other substituted analogs of bradykinin with an aromatic amino acid or the D-configuration converts bradykinin agonists into a bradykinin antagonist. The invention further includes additional modifications at other positions within the novel 7-position modified bradykinin antagonists which increase enzyme resistance, antagonist potency and/or specificity of the new bradykinin antagonists. The analogs produced are useful in treating conditions and diseases of the mammal and human body in which an excess of bradykinin or related kinins are produced or injected as by bites into the body.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: January 31, 1989
    Assignee: Nova Technology Limited Partnership
    Inventors: John M. Stewart, Raymond J. Vavrek
  • Gear wheel
    Patent number: 4799918
    Abstract: The invention relates to a gear wheel consisting of plastic material or a similar material having a coefficient of thermal expansion higher than that of steel. The gear wheel further includes a helix of steel or another material having a coefficient of thermal expansion similar to or identical with that of steel embedded in the gear rim of the wheel radially inside the teeth, whereby the helix has such a strength and dimension that it determines the coefficient of thermal expansion of the gear rim.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: January 24, 1989
    Assignee: SKF Nova AB
    Inventor: Stig Hallerback
  • Patient transfer arrangement
    Patent number: 4797960
    Abstract: An arrangement of a wheelchair with a movable seat and leg rest and a bed equipped with transfer apparatus provided with rollers, a movable sheet and lift arms, for transporting a patient comfortably across the bed to a sitting position in the wheelchair.
    Type: Grant
    Filed: February 12, 1987
    Date of Patent: January 17, 1989
    Assignee: Nova Technologies Inc.
    Inventors: Joseph G. Vaiana, Paul DiMatteo, Charles F. Chubb
  • Invalid transfer arrangement
    Patent number: 4796313
    Abstract: Apparatus used in conjunction with a bed and having rollers and a transfer sheet to transport a patient over the bed and partially onto a horizontal seat of a wheelchair. The patient is then raised to a normal seated position, without requiring any effort on the part of the patient. The patient can also be transported to a sitting position at the end of the bed, or to a standing position on the floor. The apparatus is arranged for installation on existing hospital or home-type beds so that a patient can be comfortably transported to a seated position on a wheelchair, commode, surface, or to a seated or standing position at the end of the bed.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: January 10, 1989
    Assignee: Nova Technologies Inc.
    Inventors: Paul DiMatteo, Charles F. Chubb, Stewart Senator
  • Blanket remover arrangement
    Patent number: 4787107
    Abstract: An arrangement for removing a blanket from a bed to clear the bed for transferring a person. The person lies on a transport sheet, and a cover sheet extends across and above the transport sheet and person. The cover sheet is removably fastened to a lift member in vicinity of a side of the bed. The lift member is operated by a motor to remove the cover sheet. The motor is controllable to remove or replace the cover sheet.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: November 29, 1988
    Assignee: Nova Technologies, Inc.
    Inventors: Paul DiMatteo, Charles F. Chubb