Patents Represented by Attorney, Agent or Law Firm Eric C. Spencer
  • Patent number: 7214315
    Abstract: A pressure exchange device is provided that utilizes an integral high pressure boost pump that is in fluid communication with a pressure exchange unit. An optional low pressure boost pump unit may also be provided. The pressure exchange unit comprises a rotating rotor assembly inside a housing to transfer the pressure of a fluid from one high pressure fluid to another low pressure fluid.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: May 8, 2007
    Inventor: Scott Shumway
  • Patent number: 7207781
    Abstract: A pressure exchange device is provided that utilizes a rotor assembly inside a housing to transfer the pressure of a fluid from one high pressure fluid to another low pressure fluid. The housing may comprise a pressurized fluid contained therein to provide a sealing force to reduce fluid leakage between the spinning rotors and the housing. The sealing force and wear characteristics may be controlled to reduce leakage and wear of the pressure exchange device. The rotor assembly may be driven in either direction and the high pressure ports may be switched with the low pressure ports if desired.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: April 24, 2007
    Inventor: Scott Shumway
  • Patent number: 6698106
    Abstract: A dehydration device and method is provided for the quick and efficient drying of garments wherein said dehydration device may be specifically adapted to receive an individual garment and may direct forced air into the interior volume of the garment to rapidly remove liquid and/or vapor from the garment. An optional heater may also be provided that is configured to accelerate the drying process.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: March 2, 2004
    Inventors: Fredrick C. Reithel, Henry J. Sobota
  • Patent number: 6276916
    Abstract: A failsafe device, or pressure relief mechanism, for a shooting pot actuator in an injection molding machine. The shooting pot actuator has a multiple pusher rods mounted on one, or more, plates. Moving the plate holding the pusher rods depresses the shooting pot injection pistons and injects molten material into a number of mold cavities. To avoid damage to the machine from the pusher rods if an injection piston seizes, a failsafe device is used to mount the pusher rods to the plates. A shearing member is interposed, or sandwiched, between first and second apertures. Typically, the shearing member is a plate that, in normal operating conditions, blocks rearward movement of the pusher rod. However, when a predetermined shear force is applied to the shear plate, the shearing member shears and the pusher rod retracts within the channel, thereby alleviating the pressure.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: August 21, 2001
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Robert D. Schad, Robert Sicilia, Ronald Ing, Bruce Catoen, Robert Domodossola
  • Patent number: 6220850
    Abstract: An injection molding machine, and stack assembly, employing a novel mold gate insert that can decrease the cycle time of the machine, and crystallinity and other defects in the mold gate area of plastic articles. A mold gate insert is described that is formed in two pieces. A first portion of the insert can forms a gate land for valve gated machines, and can thermally shield the nozzle tip. This first portion is made of a wear resistant material having a relatively low thermal conductivity, such as H13 tool steel. A second portion of the insert forms a section of the mold cavity and is made of a relatively highly thermally conductive material, such as beryllium copper. During the cooling phase of the injection cycle, the second portion provides rapid dissipation of heat to cool the section of the mold cavity, while the first portion creates a thermal barrier to shield the nozzle tip from the cooling of the second portion.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: April 24, 2001
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Bruce Catoen, Roberto D. Sicilia, Janet Lee
  • Patent number: 5713109
    Abstract: A multi-purpose seat belt retaining device which provides a means for lowering the path of a seat belt for use by a child by removably inserting the lap and shoulder portion of a seat belt into slots on the device thereby lowering the intersection points of the lap and shoulder portion of the seat belt. In addition, the device also provides a means for allowing a person to enter and exit the driver side of a car without unbuckling the seat belt by removably placing a hook portion around the steering wheel and inserting both the lap and shoulder portion of the seat belt in a common slot. To allow the seat belt to engage around the driver, the device is simply unhooked from the steering wheel but is left secured onto the seat belt.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: February 3, 1998
    Inventor: Jerry Edward Cech