Search Patents
  • MULTIPLE VALVE HEAD COMPRESSOR APPARATUS
    Publication number: 20130055887
    Abstract: A multiple valve compressor head having a casing defining an intake chamber in selective communication with a cavity through a plurality of one-way intake valves and an exhaust chamber in selective communication with the cavity through a plurality of one-way exhaust valves is disclosed. The casing further defines an inlet port for the entry of gas into the intake chamber and an outlet port for forcing out compressed gas from the exhaust chamber. In operation, the multiple valve compressor head is in operative engagement with a reciprocating diaphragm that draws the gas into the intake chamber and then the cavity during the intake stroke of the diaphragm, while expelling compressed gas from the cavity and through the outlet port during the exhaust stroke of the diaphragm.
    Type: Application
    Filed: September 2, 2011
    Publication date: March 7, 2013
    Applicant: ALLIED HEALTHCARE PRODUCTS INC.
    Inventors: Kevin Kroupa, Steve Palmer
  • SHUTTLING BY-PASS COMPRESSOR APPARATUS
    Publication number: 20130064687
    Abstract: A compressor apparatus having a first compressor head for generating a first gas flow and a second compressor head for generating a second gas flow with a shuttling by-pass component in fluid flow communication between the first and second compressor heads for allowing the output of a portion of either the first gas flow or the second gas flow to be diverted to the other compressor head. The shuttling by-pass component allows a portion of the first gas flow to be diverted from the first compressor head to the second compressor head during an exhaust stroke of the first compressor head, while also allowing a portion of the second gas flow to be diverted from the second compressor head to the first compressor head during an exhaust stroke of the second compressor head in alternating sequence such that a more steady output of gas flow may be attained.
    Type: Application
    Filed: September 9, 2011
    Publication date: March 14, 2013
    Applicant: ALLIED HEALTHCARE PRODUCTS INC.
    Inventors: Kevin Kroupa, Stephen Palmer
  • Mask restraining system
    Publication number: 20070215158
    Abstract: A mask restraining system used with a bag mask resuscitator for securely seating a mask on a patient's face is disclosed. The mask restraining system may include a retainer defining upper and lower slots adapted to engage first and second cords, respectively. The bag mask resuscitator may include hollow, flexible tubing having a distal end in communication with a resuscitation bag for forcing air through the flexible tubing and a proximal end in communication with a valve assembly that is rotatably engaged with the mask. The mask includes a port adapted to engage an aperture defined by the retainer in order to engage the mask to the retainer. The first and second cords may be engaged to the upper slots and lower slots, respectively, in order to securely seat the mask on the patient' face when the first and second cords are tightened relative to the retainer.
    Type: Application
    Filed: March 16, 2006
    Publication date: September 20, 2007
    Applicant: Allied Healthcare Products, Inc.
    Inventors: Kevin Kroupa, William Kullmann, Stephen Palmer
  • Shuttling by-pass compressor apparatus
    Patent number: 9022746
    Abstract: A compressor apparatus having a first compressor head for generating a first gas flow and a second compressor head for generating a second gas flow with a shuttling by-pass component in fluid flow communication between the first and second compressor heads for allowing the output of a portion of either the first gas flow or the second gas flow to be diverted to the other compressor head. The shuttling by-pass component allows a portion of the first gas flow to be diverted from the first compressor head to the second compressor head during an exhaust stroke of the first compressor head, while also allowing a portion of the second gas flow to be diverted from the second compressor head to the first compressor head during an exhaust stroke of the second compressor head in alternating sequence such that a more steady output of gas flow may be attained.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: May 5, 2015
    Assignee: Allied Healthcare Products, Inc.
    Inventors: Kevin Kroupa, Stephen Palmer
  • Monitoring system
    Publication number: 20070103290
    Abstract: A monitoring system to enable a facility to monitor variables for out-of-limit conditions and to signal in response to such an out-of-limit condition, including one or more monitoring panels or so-called alarm panels located for sensing one or more variables at one or more given location within a facility such as a hospital or laboratory to sense and respond to data associated with out-of-limit condition. The one or more panels recognize the existence of an out-of-limit condition so as to determine the nature of the out-of-limit condition, such as underpressure or overpressure, and provide the information regarding such condition so as to enable such a condition to be remedied. One or more panels are selectively provided with one or more circuit modules which can be selectively configured for sensing different conditions in the facility, and the modules provide an assembly of grouped modular configuration with each module monitoring multiple possible variables.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 10, 2007
    Applicant: Allied Healthcare Products, Inc.
    Inventors: Kevin Kroupa, James Wilson, Christopher Scholz
  • Surge prevention device
    Patent number: 6901962
    Abstract: A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves located within a housing and integrating a pressurization orifice. The initial opening of the valve in an axial direction enables gas to flow through the pressurization orifice at a first flow rate. The full opening of the valve in the axial direction enables the gas to flow through the second valve at a second flow rate, which is much higher than the first flow rate. The controlled pressurization of the gas through the orifice delays the time during which the gas reaches full recompression.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: June 7, 2005
    Assignee: Allied Healthcare Products, Inc.
    Inventors: Kevin D. Kroupa, William J. Kullmann, Ian F. Murphy
  • Surge prevention device
    Patent number: 7530365
    Abstract: A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves located within a housing and integrating a pressurization orifice. The initial opening of the valve in an axial direction enables gas to flow through the pressurization orifice at a first flow rate. The full opening of the valve in the axial direction enables the gas to flow through the second valve at a second flow rate, which is much higher than the first flow rate. The controlled pressurization of the gas through the orifice delays the time during which the gas reaches full recompression. The valve may be further provided with a vent for venting pressurized gas away from a nominally closed top surface of the lower valve element.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: May 12, 2009
    Assignee: Allied Healthcare Products, Inc.
    Inventors: Kevin D. Kroupa, William J. Kullmann
  • Surge prevention device
    Patent number: 7174909
    Abstract: A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves located within a housing and integrating a pressurization orifice. The initial opening of the valve in an axial direction enables gas to flow through the pressurization orifice at a first flow rate. The full opening of the valve in the axial direction enables the gas to flow through the second valve at a second flow rate, which is much higher than the first flow rate. The controlled pressurization of the gas through the orifice delays the time during which the gas reaches full recompression. The valve may be further provided with a vent for venting pressurized gas away from a nominally closed top surface of the lower valve element.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: February 13, 2007
    Assignee: Allied Healthcare Products, Inc.
    Inventors: Kevin D. Kroupa, William J. Kullmann
  • Surge prevention device
    Patent number: 6910504
    Abstract: A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves located within a housing and integrating a pressurization orifice. The initial opening of the valve in an axial direction enables gas to flow through the pressurization orifice at a first flow rate. The full opening of the valve in the axial direction enables the gas to flow through the second valve at a second flow rate, which is much higher than the first flow rate. The controlled pressurization of the gas through the orifice delays the time during which the gas reaches full recompression. The valve may be further provided with a vent for venting pressurized gas away from a nominally closed top surface of the lower valve element.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: June 28, 2005
    Assignee: Allied Healthcare Products, Inc.
    Inventors: Kevin D. Kroupa, William J. Kullmann
  • Surge prevention device
    Patent number: 6622743
    Abstract: A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure oxygen cylinder and a medical pressure regulator. The valve also may be used for other purposes. The surge prevention valve may have a housing with an inlet and an outlet. A seal unit may be used to close the main flow path from the inlet to the outlet, and a bleed passageway may be provided in the seal unit to bypass the main flow path. The valve may have an actuator for opening the bleed passageway and for moving the seal unit to open the main flow path. According to a preferred embodiment of the invention, a manual push-then-turn operation is used to open the valve. The actuator may be used to threadedly move the seal unit toward and away from the valve seat to close and open the main flow path. In addition, a valve rod may be provided for closing the bleed passageway.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: September 23, 2003
    Assignee: Allied Healthcare Products, Inc.
    Inventors: Gabriel S. Kohn, Kevin Donald Kroupa, David L. Boger
  • Pressure regulator with gauge
    Patent number: 6318407
    Abstract: A pressure regulator utilizing a gauge having rugged internal components. In one embodiment, the gauge has a low profile and is mounted to the regulator body. In another embodiment, the gauge is integral with the regulator body. In one preferred embodiment, the gauge includes a pressure pin and a bias, such as a spring. One side of the pressure pin communicates directly with the source pressure and is urged by the source pressure to move the pressure pin in a first direction, while the other side of the pressure pin is at a known pressure, such as ambient or atmospheric pressure, and is urged by the bias to move the pressure pin in a second direction opposed to the first direction. An indication of the position of the pressure pin is sensed by a user and is used to determine the source pressure or level. In one aspect, the indicator is a pointer or indicator mounted to move in response to movement of the pressure pin and mounted so that its position is visible (i.e., sensed by sight) to the user.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: November 20, 2001
    Assignee: Allied Healthcare Products, Inc.
    Inventors: Gabriel S. Kohn, Kevin Kroupa, Charles Michaely, David L. Boger
  • Surge prevention device
    Patent number: 7128080
    Abstract: A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves located within a housing and integrating a pressurization orifice. The initial opening of the valve in an axial direction enables gas to flow through the pressurization orifice at a first flow rate. The full opening of the valve in the axial direction enables the gas to flow through the second valve at a second flow rate, which is much higher than the first flow rate. The controlled pressurization of the gas through the orifice delays the time during which the gas reaches full recompression. The valve may be further provided with a vent for venting pressurized gas away from a nominally closed top surface of the lower valve element.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: October 31, 2006
    Assignee: Allied Healthcare Products, Inc.
    Inventors: Kevin D. Kroupa, William J. Kullmann
Narrow Results

Filter by US Classification