Patents by Inventor Richard A. Davidson

Richard A. Davidson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190255275
    Abstract: A mask system includes a frame (20) adapted to attach headgear, a sealing arrangement (40) releasably connectable to the frame, and an elbow (70) provided to the sealing arrangement and adapted to be connected to an air delivery tube that delivers breathable gas to the patient. The sealing arrangement defines a breathing chamber and is adapted to form a seal with the patient's face. The sealing arrangement includes structure (50) to establish a positive connection with the frame and with the elbow.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 22, 2019
    Inventors: Brent James DRAVITZKI, Enrico BRAMBILLA, Lemmy NGA, Nigel QUARMBY, Aaron Samuel DAVIDSON, Joel Edward GIBSON, Anthony Paul BARBARA, Justin John FORMICA, Angelene Marie OZOLINS, Robert Thomas BURNHAM, Lachlan Richard GOLDSPINK
  • Publication number: 20190226340
    Abstract: A gasket for concrete structures such as tunnel segments includes a gasket body having a bottom face configured to be positioned against a surface of an associated tunnel segment. First and second anchor members protrude from opposed side edges of the gasket adjacent the bottom face of the gasket. The anchor members are configured to attach the gasket to the tunnel segment during casting of a precast concrete member. The gasket body forms a groove in the concrete member and the anchor members form side channels in the groove. Should a defect be found in the original gasket, the gasket body can be removed from the groove of the concrete member relatively easily, even in the field, and a replacement gasket having corresponding anchor members can be snapped into the groove.
    Type: Application
    Filed: January 15, 2019
    Publication date: July 25, 2019
    Applicant: Vertex, Inc.
    Inventors: William C. Andrick, Richard J. Bowers, Troy Davidson, James A. Westhoff
  • Patent number: 7468063
    Abstract: Frame assembly for external fixation device and associated method. The frame assembly includes a first arc segment and a second arc segment. The first arc segment is for interconnection to a first bone portion. The second arc segment is for interconnection to a second bone portion. The first arc segment is coupled to the second arc segment for controlled relative rotation.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: December 23, 2008
    Assignee: EBI, LLC
    Inventors: Stephen B. Walulik, Kirk J. Bailey, Takkwong Ross Leung, Richard Davidson
  • Patent number: 7449023
    Abstract: An external fixation device includes a frame assembly having a first arc segment and a second arc segment. The first arc segment is for interconnection to a first bone portion. The second arc segment is for interconnection to a second bone portion. The first arc segment is coupled to the second arc segment for relative rotation. The external fixation assembly additionally includes an articulating module. The articulating module includes a central member, a first pivot segment and a second pivot segment. The first pivot segment is coupled to the central member for driven rotation about a first pivot axis. The second pivot segment is coupled to the central member for driven rotation about a second pivot axis. The second pivot axis is substantially perpendicular to the first pivot axis.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: November 11, 2008
    Assignee: EBI, LLC
    Inventors: Stephen B. Walulik, Kirk J. Bailey, Takkwong Ross Leung, Richard Davidson
  • Publication number: 20050211882
    Abstract: A laser measuring method in a laser measuring system, which comprises a rotary laser system for projecting a laser beam by rotary irradiation and at least one photodetection system having at least one photodetector for receiving the laser beam, comprising a step of emitting at least two fan-shaped laser beams by the rotary laser system, at least one of the fan-shaped laser beams being tilted, a step of receiving the laser beams at least at three known points by the photodetection system, a step of obtaining elevation angles with respect to the rotary laser system based on photodetection signals which are formed when the photodetector receives the laser beam, and a step of measuring an installing position of the rotary laser system based on elevation angles and position data at the three known points.
    Type: Application
    Filed: March 3, 2005
    Publication date: September 29, 2005
    Inventors: Fumio Ohtomo, Kazuki Osaragi, Kunihiro Hayashi, Richard Davidson, Clyde Goad, Vernon Brabec, Eduardo Falcon, Richard Jackson
  • Publication number: 20050113829
    Abstract: An external fixation device includes a frame assembly having a first arc segment and a second arc segment. The first arc segment is for interconnection to a first bone portion. The second arc segment is for interconnection to a second bone portion. The first arc segment is coupled to the second arc segment for relative rotation. The external fixation assembly additionally includes an articulating module. The articulating module includes a central member, a first pivot segment and a second pivot segment. The first pivot segment is coupled to the central member for driven rotation about a first pivot axis. The second pivot segment is coupled to the central member for driven rotation about a second pivot axis. The second pivot axis is substantially perpendicular to the first pivot axis.
    Type: Application
    Filed: July 15, 2003
    Publication date: May 26, 2005
    Applicant: EBI, L.P.
    Inventors: Stephen Walulik, Kirk Bailey, Takkwong Leung, Richard Davidson
  • Publication number: 20030072426
    Abstract: A method is provided for screening telemarketing, or other potentially unwanted, calls to jurisdictions where such calls may be made from only public telephone numbers. If such call is from a private telephone number and if the called party subscribes to and has activated a telemarketing-do-not-disturb feature, an announcement is issued to the calling party stating that if the call is a not a telemarketing call, the calling party must enter a designated override digit in order to complete the call. If such override digit is dialed, the call is completed whereas if any other digit, ringing of the called party's telephone is prevented. If, on the other hand, such call is from a public number, a determination is made as to whether the called party has a caller ID feature, and if not, the announcement is issued to the calling party. If the override digit is dialed, the call is completed whereas if any other digit is dialed, ringing of the called party's telephone is prevented.
    Type: Application
    Filed: September 26, 2001
    Publication date: April 17, 2003
    Inventors: Richard Davidson, Ronald McClain
  • Patent number: 6119858
    Abstract: This invention is directed to a carrying case for fishing rods and reels and related equipment. The case contains one or more portions comprising support surfaces and recessed compartments where the rods and reels are securely fastened. Interposed between the recessed compartments are storage compartments that can be utilized to store other equipment. The case is designed to afford easy accessibility to the rods as well as the storage compartments while still providing the necessary protection and ease of transportation. The fasteners for the rods and reels are situated so as to secure the rods and reels in alternately disposed positions. Because of this design, the carrying case furnishes protection for multiple rods and reels while providing extra storage compartments for additional equipment, thereby maximizing the space used by the case.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: September 19, 2000
    Assignee: The Fishing Locker, Inc.
    Inventor: Richard A. Davidson
  • Patent number: 5694917
    Abstract: A gas-fired barbecue grill, comprising: a grill body integrally formed with at least one side element selected from the group comprising a side table and a base member of a side burner. In another embodiment, the grill comprises a grill body and first and second side elements selected from the group comprising a side table and a base member of a side burner, wherein a first piece of the grill comprises a first portion of the grill body integrally formed with the first side element, and a second piece of the grill comprises a second portion of the grill body integrally formed with the second side element, and further wherein the first and second pieces of the grill are secured together. In yet another embodiment, the grill comprises a grill body and first and second side elements selected from the group comprising a side table and a base member of a side burner, wherein the side elements are attached directly to the grill body.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: December 9, 1997
    Assignee: Sunbeam Products, Inc.
    Inventors: Michael Giebel, Steven Speck, Michael Franks, Richard Davidson, Rainer B. Teufel
  • Patent number: 5475741
    Abstract: This system is for use by a visitor to a facility that has multiple occupants, public-subscriber or other phone service, and an individual phone outlet at each occupant's part of the facility. A microphone and speaker are provided so that a visitor seeking access can speak with an occupant. A communication circuit carries signals between (1) the mike and speaker and (2) the phone service--to enable the conversation through an individual phone outlet. Manual controls, preferably including a standard phone keypad, are positioned for use by the visitor. An electronic memory holds directory information, particularly including occupant names and corresponding dial-up codes. An LCD, behind a protective window, shows the visitor the directory data. Names and other directory data can be fed into the memory remotely, preferably through either: ordinary phone connections using standard DTMF signals--with automated confirmation of input data by a voice-synthesis chip--or a modem.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: December 12, 1995
    Assignee: Sentex Systems, Inc.
    Inventors: William R. Davis, Dennis W. Mowers, Richard P. Greenthal, Paul Szymanski, Ronald A. Wray, Richard A. Davidson
  • Patent number: 5252955
    Abstract: A liquid-crystal display, preferably twenty-five lines of eighty characters each, is mounted in a case. The temperature of the display medium is maintained within operating limits for the display--notwithstanding ambient temperature and humidity variations over generally normal ranges for at least the temperate zones, and even if the display unit is placed to receive direct sunlight. The unit works outdoors as well as in buildings that lack temperature control. This is accomplished preferably by circulating air from outside the case through a space between the display face and an unperforated protective polycarbonate window. Intake and exhaust plena are long and narrow enough to deter manual access to the display and thus van dalism; however, the plena are straight and sufficiently free of obstructions that the fan can be a very small, low-power, quiet unit. A temperature sensor controls the fan, and also the contrast-adjusting voltage of the display --based on data in a digital-memory "look up" table.
    Type: Grant
    Filed: May 24, 1991
    Date of Patent: October 12, 1993
    Inventors: William R. Davis, Dennis W. Mowers, Richard P. Greenthal, Paul Szymanski, Ronald A. Wray, Richard A. Davidson
  • Patent number: 5027111
    Abstract: A liquid-crystal display, preferably twenty-five lines of eighty characters each, is mounted in a case. The temperature of the display medium is maintained within operating limits for the display--notwithstanding ambient temperature and humidity variations over generally normal ranges for at least the temperate zones, and even if the display unit is placed to receive direct sunlight. The unit works outdoors as well as in buildings that lack temperature control. This is accomplished preferably by circulating air from outside the case through a space between the display face and an unperforated protective polycarbonate window. Intake and exhaust plena are long and narrow enough to deter access to the display and thus vandalism; however, the plena are straight and sufficiently free of obstructions that the fan can be a very small, low-power, quiet unit. A temperature sensor controls the fan, and also the contrast-adjusting voltage of the display--based on data in a digital-memory "look up" table.
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: June 25, 1991
    Assignee: Sentex Systems, Incorporated
    Inventors: William R. Davis, Dennis W. Mowers, Richard P. Greenthal, Paul Szymanski, Ronald A. Wray, Richard A. Davidson
  • Patent number: 4215366
    Abstract: A method and apparatus for encoding and decoding of standard television signals are provided for enabling reception thereof in an intelligible manner only by authorized subscribers. The scrambling of the video signals is effected by inversion of the video signals of some horizontal scan lines on a pseudo-random basis to produce a picture having some video signals inverted and others not inverted which is unpleasant to view and virtually unintelligible. The scrambling of the audio signals is effected by conversion of analog audio signals to coded digital audio signals. A plurality of unique pulse coded control signals consisting of 32-bit binary pulse trains are transmitted separately to identify individual authorized subscribers and to provide information needed to unscramble the scrambled video and audio signals.
    Type: Grant
    Filed: April 24, 1979
    Date of Patent: July 29, 1980
    Assignee: Feature Film Services
    Inventor: Richard A. Davidson
  • Patent number: 4116586
    Abstract: A housing contains a slidable spool operable to port a first pressurized fluid line to a fluid motor, and a housing reservoir has a float movable with a fluid level. The motor drives a pump which "pumps down" the reservoir. A second pressurized fluid line is directed through a primary fixed orifice and against one end of the spool, acting against a spring bias, and is permitted to exit through an end orifice to the reservoir. The float moves in response to the fluid level and operates to shut off the end orifice flow, thereby building up backpressure to shift the spool, and thus varying outlet flow from the valve in accordance with the reservoir level. Therefore, the reservoir is pumped down in accordance with reservoir build-up.
    Type: Grant
    Filed: May 9, 1977
    Date of Patent: September 26, 1978
    Assignee: Cincinnati Milacron Inc.
    Inventors: Richard Davidson Forney, Richard Samuel Hernandez, Richard Anderson Curless
  • Patent number: 4076997
    Abstract: A monostable multivibrator circuit is disclosed which uses a feedback diode to couple the output signal of the monostable back to one terminal of the timing capacitor and thereby maintain the voltage at this capacitor terminal at a constant level for a duration equal to the pulse duration of the monostable output. A transistorized internal combustion engine ignition system is illustrated which incorporates the diode feedback monostable circuit. A trigger input signal actuates a first transistor switch which creates an abrupt negative transition that is coupled across a timing capacitor and results in turning off a second transistor for a predetermined amount of time. A third transistor monitors and inverts the output of the second transistor and produces an output signal at its collector. This inverted output signal forms the output of the monostable multivibrator and this signal is fed back to one terminal of the timing capacitor by a feedback diode.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: February 28, 1978
    Assignee: Motorola, Inc.
    Inventor: John Richard Davidson
  • Patent number: RE31735
    Abstract: A method and apparatus for encoding and decoding of standard television signals are provided for enabling reception thereof in an intelligible manner only by authorized subscribers. The scrambling of the video signals is effected by inversion of the video signals of some horizontal scan lines on a pseudo-random basis to produce a picture having some video signals inverted and others not inverted which is unpleasant to view and virtually unintelligible. The scrambling of the audio signals is effected by conversion of analog audio signals to coded digital audio signals. A plurality of unique pulse coded control signals consisting of 32-bit binary pulse trains are transmitted separately to identify individual authorized subscribers and to provide information needed to unscramble the scrambled video and audio signals.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: November 13, 1984
    Assignee: Feature Film Services
    Inventor: Richard A. Davidson
  • Patent number: D627120
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 9, 2010
    Assignee: Design Styletto inc.
    Inventor: M. Richard Davidson
  • Patent number: D654644
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: February 21, 2012
    Assignee: Design Styletto inc.
    Inventor: Richard Davidson