Patents Represented by Law Firm Bielen & Peterson
  • Patent number: 5806474
    Abstract: A fuel injection system for an engine having a combustion chamber, the injection system having at least one fuel injector with a hydraulically operated actuator for amplifying the pressure of fuel injected from the injector into the combustion chamber, the hydraulic actuator communicating with a hydraulic pulse pump having a slide piston displaced by the pressure of compression and combustion gases within the combustion chamber, the fuel pressure having an amplified pressure profile paralleling the developed pressure profile of gases compressed and combusted in the combustion chamber, and in an alternate embodiment the pulse pump delivers high pressure hydraulic fluid to a common rail for use by multiple injectors and including a further embodiment where the high pressure fluid in the common rail is used as the motive fluid for actuating the engine combustion chamber valves.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: September 15, 1998
    Inventors: Marius A. Paul, Ana Paul
  • Patent number: 5809343
    Abstract: A loading apparatus for photographic film which is used in conjunction with a camera that may be booth mounted. The apparatus includes a platform which is rotatably linked to a base, such as the booth structure or the floor of the booth. The platform includes a surface and a multiplicity of holders for film containers or cartridges which are located in side-by-side configuration. The platform is turned or rotated relative to the base member and is used in conjunction with an elevator mechanism for removing the film containers from the surface of the platform, to the vicinity of a portion of the camera for exposure, and back to the platform when the film has been exposed.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: September 15, 1998
    Inventor: John Biondo
  • Patent number: 5801968
    Abstract: A monitor device for determining end point measurements of an environmental parameter such as temperature, humidity and the like. The monitor employs a probe which consecutively measures consecutive values of such environmental parameter. Transducing means converts the measured values into an electrical signal. Clock means determines a time window which is stored in memory means. Memory means obtains a value of the span of the parameter value by determining the difference between an initial value and a selected subsequent value of the parameter. End point selection means compares the selected minimum ratio with the actual ratio within the time window set by the clock means. When the actual ratio lies within the preset minimum ratio, display means exhibits indicia representing the actual environmental parameter.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: September 1, 1998
    Assignee: Deltatrak, Inc.
    Inventors: Frederick L. Wu, Richard L. Foreman
  • Patent number: 5797276
    Abstract: Methods and devices for energy conservation to be retrofitted to refrigerated chambers or boxes of the type comprising an insulated chamber and an associated compression-type refrigeration system. The energy conservation devices disclosed are adapted to be mounted within the refrigerated chamber, on or within the evaporator, and connected to the thermostatic switch and the evaporator fans located within the refrigerated chamber.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: August 25, 1998
    Inventors: Mervin W. Howenstine, Allan E. Schrum
  • Patent number: 5794271
    Abstract: A helmet shell structure utilizing a first inner layer of epoxy resin shaped into a head covering of a desired size and configuration. A second layer of woven fabric is placed atop the first layer of epoxy. A third outer layer of epoxy resin is laid atop the second layer and is cured to a transparent state such that the second layer of woven fabric is visible through the third outer layer of cured epoxy.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: August 18, 1998
    Inventor: Dale Hastings
  • Patent number: 5789060
    Abstract: A composite web structure utilizing a thin first layer of material having a plurality of structural fibers arranged to lie essentially in a unidirectional orientation. A thin second layer of material is positioned adjacent the first layer and includes a plurality of structural fibers. First and second layers are impregnated with a matrix material for binding fibers within the first and second layers and for binding the first and second layers together. The web may be formed into a composite structure such as a honeycomb core for fabrication into a panel.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: August 4, 1998
    Assignee: Specialty Cellular Products Company
    Inventors: Andrew C. Marshall, Michael L. Fellman
  • Patent number: 5788616
    Abstract: A mechanical weightlifting machine for use with free weights in which the machine has a support structure with an elevated pivot having a pivot axis and an articulating mechanism engaging the pivot. The articulating mechanism having projecting lever arms connected to the pivot with depending rod members to which the free weights are connected, the articulating mechanism having a counterweight on a lever arm with one end connected to the support structure and another having a link connected to a displaceable connection member on the articulating mechanism, the machine having a user controlled actuator to displace the displaceable connection member to vary the effective weight applied to or removed from the free weights.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: August 4, 1998
    Inventor: Richard Polidi
  • Patent number: 5784761
    Abstract: A load retainer useable with tie down lines on a vehicle. The retainer includes a flexible body having first and second end portions and an intermediate end portion between the first and second end portions. Sites on the flexible body are intended for engaging the tie down lines. The flexible body is also adjustable along a certain dimension to permit the flexible body to fit around a load. The adjustment means includes a first flap, anchor place, and fastener for the first flap and anchor.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: July 28, 1998
    Inventor: Paul Dean Allen
  • Patent number: 5782001
    Abstract: A hold-and-release device for the movable lower guard of a hand-operated circular saw in which the guard is held in its out-of-the-way position by a magnet or latch while a saw cut is being made but is automatically released to assume its normal protective position when the motor power is removed. Alternatives are described having different degrees of complexity, for example, one requires the operator to apply pressure to the trigger switch while engaging the guard-holding device.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: July 21, 1998
    Inventor: John W. Gray
  • Patent number: 5775334
    Abstract: A limb positioning apparatus utilizing a structural member having a compartment with an opening thereto. The structural member is supported at a predetermined position relative to the limb and at a certain distance from the limb. A first line is linked or attached to the limb and connected to a constant force spring located within the compartment of the structural member. A second line is attachable to the limb and is also connected to a constant force spring lying within the compartment of the structural member. The forces exerted by the first and second constant force springs are applied cumulatively or alternatively to provide a pre-determined tension force on the limb of the patient.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: July 7, 1998
    Assignee: Orthopedic Systems, Inc.
    Inventors: Steven R. Lamb, Eugene M. Wolf, Russel E. Klein
  • Patent number: 5773797
    Abstract: The steam generating system utilizing a first container having a liquid chamber. The first container is surrounded by a conducting coil for generating a field and producing eddy currents on the container. Steam produced in the first container is sent to a second container which is similarly heated by an induced eddy current. Steam in the second container is superheated for use.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: June 30, 1998
    Assignee: Daihan, Co., Ltd.
    Inventor: Motoaki Uemura
  • Patent number: 5769610
    Abstract: A high pressure gas compressor in one embodiment having an internal two staged compression with a compression chamber formed in part by a positive displacement, stepped piston and cylinder configuration, providing a first stage compression by an enlarged diameter segment of the piston and a second stage compression provided by a smaller diameter segment of the piston, and in another embodiment having an internal, single stage compression with a high compression ratio.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: June 23, 1998
    Inventors: Marius A. Paul, Ana Paul
  • Patent number: 5765472
    Abstract: A food slicer for slicing a variety of food items, the food slicer having a cutting platform with a housing supporting an adjustable sizing plate, fixed horizontal cutting blade and a receiving plate flush with the cutting blade, the housing having a guide for a food transport sled, the transport sled having a food item guide conduit providing a well for receiving food items to be sliced, and a flange slidably engageable with the housing guide, the food items being sliced when the transport sled is displaced from over the sizing plate, across the cutting blade to the receiving plate, the food slicer having a food container on which the cutting platform is seated to receive the food slices.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: June 16, 1998
    Inventor: Sun Y. Kim
  • Patent number: 5762211
    Abstract: An article organizer and display system constructed with a front display panel having a plurality of constricted apertures in an array and a plurality of suspension tethers each having one end that engages nd is retained by a selected constricted aperture and an opposite end that attaches to an article such as a tool or sale item to display the item against the panel, the system including a backing panel with a plurality of studs aligned with the constricted apertures with a displacement mechanism to displace the backing panel to a position proximate the display panel locking the tethers on the display panel.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: June 9, 1998
    Inventor: Lance Ensign
  • Patent number: 5759075
    Abstract: A guard for a marine propeller utilizing a flange found on the lower drive unit or power leg, thereof. The guard includes a cage which at least partially encloses the propeller and a support member for holding the cage to the lower drive unit. A support member includes a bracket having a pair of legs with an intermediate portion between the two legs. The bracket is joined to the cage and fixed to the flange found in the lower drive unit of the marine engine having the marine propeller.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: June 2, 1998
    Assignee: PropGuard, Inc.
    Inventors: Donald T. Steep, Keith A. Jackson
  • Patent number: 5753807
    Abstract: A brake adjustment monitoring system, including a sensor having a movable actuator for mounting in or on a brake service chamber and circuitry which responds to the actuator's position to generate a display indicating whether the brake is correctly adjusted (after actuation of the brake). In preferred embodiments mounted in a motor vehicle having several brake assemblies each including a service chamber, a sensor is mounted in each service chamber, and a display panel mounted to the dashboard indicates the status of each brake assembly or each pair of the brake assemblies. Preferably, each sensor is designed for use with an air brake assembly including a service chamber, a push rod having one end outside the chamber and another end in the chamber, and a slack adjuster connected to the push rod's outer end.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: May 19, 1998
    Inventors: Wayne Trueman, Theodore P. Spero
  • Patent number: 5752811
    Abstract: A linear actuator and pump unit for precision displacement of fluids in which a positive displacement, piston pump is coupled to an actuator mechanism having a carriage on a guide that is displaced by a rotary drive connected to a take-up drum on an anchor structure that has a pulley line anchored to the anchor structure looped around a first idler pulley on the carriage, looped around an idler pulley on the anchor structure, looped around a second anchor structure on the carriage, and connected to the take-up drum, the positioning of the carriage being detected by a sensor and the rotary drive that controls the precision operation of the piston pump.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: May 19, 1998
    Inventor: John P. Petro
  • Patent number: 5745243
    Abstract: A photometer for measuring electromagnetic radiation absorption of a sample utilizing a source of the electromagnetic radiation. Electromagnetic radiation is conducted from the source, to a sample sensor, and is passed through the sample utilizing a sample cell. The electromagnetic radiation is then directed to a detection system which determines absorbance of electromagnetic radiation by the sample at the sample cell. The detection system includes a beam splitter which receives the electromagnetic radiation and outputs first and second beams. A first detector having a first wavelength filter and a second detector having a second wavelength filter receives the two beams from the splitters. One detector may be employed to produce a reference signal. The remaining detector or detectors produce an output signal which is a representation of a characteristic, such as absorbance of the sample. The output signals are operated on by a reference signal, and converted into a measurement absorbance.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: April 28, 1998
    Assignee: Optical Solutions, Inc.
    Inventors: Steven Wilcox, Don S. Goldman
  • Patent number: D394884
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: June 2, 1998
    Inventor: Joseph Paolucci
  • Patent number: D396909
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: August 11, 1998
    Inventor: James R. Carter