Patents by Inventor John R. Erickson

John R. Erickson 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: 20170260781
    Abstract: A door security device includes a support bar, a first support member, a second support member, and an engagement portion. The first support member is provided on one end of the support bar and is adapted to abut against a surface of an associated door. The second support member is provided at another end of the support bar and is adapted to abut an associated structural surface. The engagement portion is secured to the support bar and is configured to releasably engage a door part of the associated door or an emergency entry device affixed to the associated door. The engagement portion applies a pulling force on the door part in a direction toward the support bar.
    Type: Application
    Filed: March 10, 2016
    Publication date: September 14, 2017
    Inventors: John W. Shiffler, Steven T. Webb, John R. Erickson, Charles R. Anspach, Zeljko T. Medved
  • Patent number: 8265083
    Abstract: An IP telephony system allows users of the IP telephony system to register extension telephony devices with the IP telephony system. An extension telephony device is one that is provided with service by a separate telephony service provider. Once an extension telephony device is registered, a user can obtain communications services from the IP telephony system using the extension telephony device. A extension telephony device may be tied to a user's main telephony services account with the IP telephony system such that when the user obtains communications services from the IP telephony system using an extension telephony device, the user will be billed for those communications services through the user's main account.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: September 11, 2012
    Assignee: Vonage Network, LLC
    Inventors: Eugene Peter Cannon, Ka-yui Kevin Ma, John R Erickson
  • Publication number: 20110172563
    Abstract: A method and system for measuring the size of the palpable surface of the prostate in the physician's office. In one embodiment a membrane with a grid pattern is located proximate the prostate. A physician moves a measurement system, formed at the end of the index finger and located in a glove, between opposite margins of the prostate. The measurement system counts the grid elements between the margins that translate into a quantitative measurement of size of the palpable surface of the prostate. In another embodiment an accelerometer attaches to the end of the index finger to produce signals along multiple axes that a processing system converts into a measurement of the size.
    Type: Application
    Filed: July 22, 2010
    Publication date: July 14, 2011
    Applicant: MEDICAMETRIX, INC.
    Inventors: Ian Peter Kellett, John R. Erickson, Robert Schelsinger
  • Publication number: 20090069721
    Abstract: A method and system for measuring the size of the palpable surface of the prostate in the physician's office. In one embodiment a membrane with a grid pattern is located proximate the prostate. A physician moves a measurement system, formed at the end of the index finger and located in a glove, between opposite margins of the prostate. The measurement system counts the grid elements between the margins that translate into a quantitative measurement of size of the palpable surface of the prostate. In another embodiment an accelerometer attaches to the end of the index finger to produce signals along multiple axes that a processing system converts into a measurement of the size.
    Type: Application
    Filed: November 20, 2007
    Publication date: March 12, 2009
    Inventors: Ian Peter Kellett, John R. Erickson, Robert Schlesinger
  • Patent number: 7309319
    Abstract: A method and system for measuring the dimensions of the palpable surface of the prostate in the physician's office and calculating prostate volume, rate of growth and changes in rate of growth. A membrane with a grid pattern is located proximate the prostate. A physician moves a measurement system, formed at the end of the index finger and located in a glove, between opposite margins of the prostate. The measurement system counts the grid elements between the margins that translate into a quantitative measurement of size of the palpable surface of the prostate.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: December 18, 2007
    Assignee: Sensors for Medicine, Inc.
    Inventors: Ian Peter Kellett, John R. Erickson, Robert Schlesinger
  • Patent number: 6551007
    Abstract: A self-centering and self-aligning joint is presented for bonding a first and second wood segment, wherein the joint includes a single tenon extending from the end face of the first segment, and a void disposed within the end face of the second segment. And adhesive is applied to the outer surface of the tenon, or to the inner surface of the void to join the two segments.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: April 22, 2003
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Gary J. Lichtenberg, John R. Erickson, Robert Ross, Dwight Flach
  • Publication number: 20020034416
    Abstract: A self-centering and self-aligning joint is presented for bonding a first and second wood segment, wherein the joint includes a single tenon extending from the end face of the first segment, and a void disposed within the end face of the second segment. And adhesive is applied to the outer surface of the tenon, or to the inner surface of the void to join the two segments.
    Type: Application
    Filed: June 28, 2001
    Publication date: March 21, 2002
    Inventors: Gary J. Lichtenberg, John R. Erickson, Robert Ross, Dwight Flach
  • Patent number: 6276209
    Abstract: A system and method of detecting anomalies and/or grain variations in a wooden member. At least one ultrasonic transmitter applies an ultrasound waveform into a surface of a wooden member so as to generate a multiplicity of ultrasonic waves including, e.g., longitudinal and shear ultrasonic waves. These ultrasonic waves are measured after propagation through the wooden member by at least one ultrasonic receiver disposed on the same surface of the wooden member. At least one ultrasonic receiver may also be placed opposite the ultrasonic transmitter so as to detect radial transmission of the longitudinal ultrasonic wave at a point across from the wooden member. The received ultrasonic waves are processed to determine anomalies and/or grain variations in the wooden member at positions of the wooden member between the ultrasonic transmitter and the ultrasonic receiver(s). The ultrasonic transmitters and receivers may be placed in rollers to facilitate high-speed, in-line processing of wooden members.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: August 21, 2001
    Assignees: Perceptron, Inc., The United States of America as represented by the Secretary of Agriculture
    Inventors: Mark E. Schafer, Robert J. Ross, John R. Erickson, Rodney C. DeGroot
  • Patent number: 5637978
    Abstract: A self-contained emergency battery charger for use in motor vehicles for charging a fully or partially discharged starter storage battery which delivers current to a starter motor of the vehicle. The batter charger contains a 12 volt, sealed lead acid charging battery and a boost converter deriving its energy from the charging battery. The charging battery has a nominal terminal voltage equal to or less than the vehicle's battery. The boost converter circuit provides an additional 2 to 3 volts to the charging battery output.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: June 10, 1997
    Assignee: Kendrick Products Corporation
    Inventors: I. Peter Kellett, John R. Erickson, Edward T. Cline, III
  • Patent number: 5172259
    Abstract: A network comprising a plurality of successively interconnected node stages where each node has an associated data connection state and includes a control element, significantly implemented as part of the node itself, for controlling the data connection state of at least one node of the following stage. The network is well suited for optical implementation and is controlled by shifting bits into the network for storage by the control elements rather than relying on spatial light modulators.
    Type: Grant
    Filed: February 27, 1991
    Date of Patent: December 15, 1992
    Assignee: AT&T Laboratories
    Inventors: Thomas J. Cloonan, John R. Erickson, Anthony L. Lentine, Frederick B. McCormick, Jr., Gaylord W. Richards
  • Patent number: 5153757
    Abstract: A network arrangement and control method where, before any transmission of data occurs for a particular communication, a network controller determines an unused path to provide a connection, advantageously all the way through the network from a given inlet to a given outlet. Once the identity of the unused path is known, the controller determines control information for use in activating that path and transmits that control information into the network, significantly via the network inlets. The network responds by activating the determined path and communication is enabled via the activated path, but only for the single connection and no buffering of information is required within the network. The network is particularly well suited for optical implementation and control is effected without the use of spatial light modulators but rather by means of control elements embedded within the network itself.
    Type: Grant
    Filed: February 27, 1991
    Date of Patent: October 6, 1992
    Assignee: AT&T Bell Laboratories
    Inventors: Thomas J. Cloonan, John R. Erickson, Anthony L. Lentine, Frederick B. McCormick, Jr., Gaylord W. Richards
  • Patent number: 5001424
    Abstract: An apparatus for detecting magnetic particles suspended in a liquid, such as particles suspended in lubricating oil flowing through an engine. The oil is caused to pass through the area coupling two or more coils while the mutual inductance of the coils is monitored. When a magnetic particle enters the area coupling the coils, the mutual inductance of the coils will increase, thereby indicating the presence of the particle.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: March 19, 1991
    Assignee: Product Resources, Inc.
    Inventors: I. Peter Kellett, John R. Erickson
  • Patent number: 4053004
    Abstract: A cutting machine to sever elongated wood particles or fiber masses to a predetermined length in one self-feeding and continuous operation. Said cutting machine reduces naturally formed and partially processed wood into particles of controlled length and cross-sectional dimension. A rotating spiral cutting edge mounted on a drive shaft is of varying radial length increasing from zero on one end to a radial length greater than the cross-sectional dimension of the wood or fiber to be sheared. In back of the shearing section a separate degradation spiral is situated that gradually decreases back to a minimal radial length on the other end. An anvil is provided over the length of the shearing section against which the rotating cutting edge shears the wood. In the back or degradation section, a casing in the shape of a truncated cone is fitted loosely around the decreasing spiral. Wood is fed parallel to the drive shaft into the front end of the apparatus.
    Type: Grant
    Filed: May 12, 1975
    Date of Patent: October 11, 1977
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert D. Barwise, Rodger A. Arola, John R. Erickson