Patents Represented by Law Firm Bielen & Peterson
  • Deaerator unit with gravity circulation
    Patent number: 5405435
    Abstract: An economical deaerator unit for use in boiler feedwater systems for eliminating non-condensible gases, the unit having a containment vessel with a divided internal chamber with an upper scrubbing section and a lower heating and deaerating section with gases flowing from the lower section to the upper section for venting, and with water flowing from the upper section to the lower section for supply to a boiler system with water circulation in the deaerator unit being accomplished by gravity without a transfer pump.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: April 11, 1995
    Inventor: Martin Bekedam
  • Fire retardant foam generator
    Patent number: 5404957
    Abstract: A generator for fire retardant foam utilizes a foamable liquid in a fire hose terminating in a nozzle. The generator includes a housing having an inner chamber with a first entrance opening and a second exit opening. A moveable screen is disposed within the housing to aid in the generation of the foam. A connector is also employed for fastening the housing to the fire hose nozzle utilizing a plurality of hingable elements connected to the housing and a clamp for fixing the plurality of elements to the exterior of the fire hose.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: April 11, 1995
    Inventor: Pat McCormack
  • Aircraft structure
    Patent number: 5402969
    Abstract: An aircraft structure, such as a glider including a wing having a substantially flat, upper, first surface and a convex, lower, second surface. The wing first and second surfaces converge to a leading edge and a trailing edge. A weighted member is used to determine the center of gravity of the wing as being 15 to 25% of the length of the chord from the leading edge. The weight structure is fixed to the wing and may also serve as a structural member.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: April 4, 1995
    Inventor: Brian Shea
  • Fuel injector system
    Patent number: 5397055
    Abstract: A high pressure fuel injector having high pressure fuel admission passages and low pressure fuel return passages with a needle valve hydraulically operated by high pressure fuel from the high pressure fuel admission passage by a distributor valve which selectively directs a hydraulic pressure fuel against one side or the other of a piston body forming part of the needle valve whereby the needle valve is urged to a position closing discharge orifices or position opening discharge orifices the distributor valve being controlled by an electronic actuator.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: March 14, 1995
    Inventors: Marius A. Paul, Ana Paul
  • Integrated thermo-electro engine
    Patent number: 5397922
    Abstract: An internal combustion unit having a cylinder with at least one power piston with thermal means for reciprocating the power piston in the cylinder, the power piston and cylinder defining a combustion chamber, and a generator unit having a linear inductor piston coupled to the power piston for reciprocation together with the power piston and a stationary coil stator constructed in the configuration of an annulus, wherein the inductor piston reciprocates in the annulus of the coil stator and electrical current is generated in the stator.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: March 14, 1995
    Inventors: Marius A. Paul, Ana Paul
  • X-ray cassette casing
    Patent number: 5377254
    Abstract: A casing for x-ray cassettes for comfort of a patient during x-ray procedures, the casing being fabricated of a padded material with a surface that can be cleaned and disinfected, the casing being flat and generally square in configuration with corner handles for adjustment of the casing when used against a patient.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: December 27, 1994
    Inventor: Michael A. Walling
  • Engine fuel flow control mechanism
    Patent number: 5372159
    Abstract: An engine fuel line flow control mechanism utilizing a valve located within a fuel line. The valve includes a seat and a movable seal which is capable of regulating the flow of fuel through the fuel line. An actuator is linked to the valve and may include a piston found within a chamber which is connected to the seal of the valve. The piston is also connected to an engine manifold pressure conduit such that the piston moves in response to changes in manifold pressure of the engine.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: December 13, 1994
    Assignee: Bjork Investment Group, Inc.
    Inventors: Harold Ziegelmeyer, deceased, Arnold Bjork
  • Stop mechanism for a door
    Patent number: 5369840
    Abstract: A stop mechanism for a door associated with a jamb utilizing an arresting element. The arresting element is capable of withstanding force asserted on an object normally positioned between the door and the jamb. In addition, the arresting element is sized to provide a gap between the door and the jamb when the door is swung toward a closed position. A tether is also employed in the present invention which is connected to the arresting element, and permits the arresting element to lie in a first position in the vicinity of the closed door and associated jamb and in a second position between the door and the jamb when the door is again motivated toward closing. The tether is supported to the vicinity of the door jamb at a selected level above the ground surface.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: December 6, 1994
    Inventors: Wayne J. Salvador, Julie L. Salvador
  • Internal combustion engine with compound air compression
    Patent number: 5362219
    Abstract: A rotary air compressor with a housing forming an epitrochoidal chamber in which a multilobed rotor with a ring gear eccentrically rotates on an internal central gear in the housing, the rotor dividing the chamber into multiple subchambers of changing volume as the rotor rotates, the chamber having intake ports of variable size opening to change the quantity of gas that is compressible and outlet ports having spring biased plunger valves to prevent flow of discharged compressed air back into the compressor.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: November 8, 1994
    Inventors: Marius A. Paul, Ana Paul
  • High pressure differential fuel injector
    Patent number: 5355856
    Abstract: A fuel injector system designed to generate an ultra-high, injection pulse with an instant cut-off, the injector system including a distributor component for distributing high pressure fluid from a fuel supply to a fuel injector component and a connected booster component in which the high pressure fuel is increased in pressure to an ultra high fluid pressure by a piston mechanism having large diameter and small diameter pistons. The high pressure fuel hydraulically lifts a needle valve and is ejected through discharge nozzles at the end of the injector component. High pressure fuel in the injector component forces the reseating of the needle valve after fuel discharge.
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: October 18, 1994
    Inventors: Marius A. Paul, Ana Paul
  • Trailer hitch assembly system
    Patent number: 5344172
    Abstract: A trailer hitch system utilizing a support member which includes a well that is accessible at the exterior of a vehicle. The support member is connected to the frame of the vehicle. A hitch element including a base portion, is capable of lying within the well of the support member such that a fitting for hitching a trailer is available for use external to the well. A lock removably holds the hitch element to base portion within the well. Thus a variety of hitch elements are interchangeable with the present assembly system.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: September 6, 1994
    Inventor: Fritz Jaun
  • Device for inducing saccadic eye movement
    Patent number: 5343261
    Abstract: A device for inducing saccadic eye movement in a subject utilizing a source of power which activates a multiplicity of visual signaling elements. The visual signaling elements are mounted in a structure such that the elements are placed at a certain level and angle relative to the eye or eyes of the subject. The visual signaling elements are sequentially activated in a back and forth manner.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: August 30, 1994
    Inventor: David L. Wilson
  • Gas turbine engine operating method
    Patent number: 5341636
    Abstract: A gas turbine engine that can operate at a very high efficiency over a wide range of load conditions. In one important feature of the invention, combustion gases are discharged along two paths, one with constant energy and the other with energy that varies in accordance with the engine load. The constant energy discharge drives a turbine that, in turn, operates a compressor for the engine at a constant, high efficiency. Alternatively, the compressor is driven at a speed that varies inversely with the engine load such that the engine operates at a high efficiency for all loads. In another, independent feature of the invention, the combustion occurs at a stoichiometric ration of fuel and air, with the turbine blades being protected from the vastly increased combustion gas temperatures by an internal array of passageways through which cooling liquid, e.g., liquid fuel, and air are channeled.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: August 30, 1994
    Inventor: Marius A. Paul
  • Extruded frame molding for glass block structures
    Patent number: 5339588
    Abstract: An extruded molding configured to frame glass masonary block for building structures, particularly wood frame structures, the molding having a substantially flat base portion on which the block is seated and raised side elements forming a channel, the molding having a topside of the base portion with a pair of bracket elements constructed to engage and retain the tab segment of a panel anchor and having an underside of the base portion with a weather flash and a nailing flange to prevent water seepage under the molding.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: August 23, 1994
    Inventor: George Ballstadt
  • Portable x-ray unit
    Patent number: 5339349
    Abstract: A light-weight portable x-ray unit utilizable in a field environment having a high voltage transformer and electronic circuitry for emulating a full-wave power supply to a radiation emitting x-ray tube.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: August 16, 1994
    Inventor: Millan Y. Xeno
  • Exercise apparatus
    Patent number: 5338278
    Abstract: An exercise apparatus utilizing a platform which is slidable on a frame. The platform moves on the frame against a resistance force provided by a spring connected to the platform and the frame. A foot support connects the frame and includes a contact surface which is adjustable along first and second dimensions. A head rest which adjusts in multiple direction is also supported by the carriage.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: August 16, 1994
    Inventor: Ken Endelman
  • Frame for a physical exerciser
    Patent number: D354780
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: January 24, 1995
    Inventor: Ken Endelman
  • Frame for a physical exerciser
    Patent number: D354781
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: January 24, 1995
    Inventor: Ken Endelman
  • Manifold
    Patent number: D354799
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: January 24, 1995
    Inventor: Fred Self
  • Breakable seal for fire extinguisher
    Patent number: D355054
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: January 31, 1995
    Inventor: Fred Self