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).
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Publication number: 20170260781Abstract: 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: ApplicationFiled: March 10, 2016Publication date: September 14, 2017Inventors: John W. Shiffler, Steven T. Webb, John R. Erickson, Charles R. Anspach, Zeljko T. Medved
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Patent number: 8265083Abstract: 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: GrantFiled: September 26, 2011Date of Patent: September 11, 2012Assignee: Vonage Network, LLCInventors: Eugene Peter Cannon, Ka-yui Kevin Ma, John R Erickson
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Publication number: 20110172563Abstract: 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: ApplicationFiled: July 22, 2010Publication date: July 14, 2011Applicant: MEDICAMETRIX, INC.Inventors: Ian Peter Kellett, John R. Erickson, Robert Schelsinger
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Publication number: 20090069721Abstract: 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: ApplicationFiled: November 20, 2007Publication date: March 12, 2009Inventors: Ian Peter Kellett, John R. Erickson, Robert Schlesinger
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Patent number: 7309319Abstract: 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: GrantFiled: November 24, 2004Date of Patent: December 18, 2007Assignee: Sensors for Medicine, Inc.Inventors: Ian Peter Kellett, John R. Erickson, Robert Schlesinger
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Patent number: 6551007Abstract: 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: GrantFiled: June 28, 2001Date of Patent: April 22, 2003Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Gary J. Lichtenberg, John R. Erickson, Robert Ross, Dwight Flach
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Publication number: 20020034416Abstract: 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: ApplicationFiled: June 28, 2001Publication date: March 21, 2002Inventors: Gary J. Lichtenberg, John R. Erickson, Robert Ross, Dwight Flach
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Patent number: 6276209Abstract: 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: GrantFiled: December 17, 1999Date of Patent: August 21, 2001Assignees: Perceptron, Inc., The United States of America as represented by the Secretary of AgricultureInventors: Mark E. Schafer, Robert J. Ross, John R. Erickson, Rodney C. DeGroot
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Patent number: 5637978Abstract: 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: GrantFiled: November 6, 1995Date of Patent: June 10, 1997Assignee: Kendrick Products CorporationInventors: I. Peter Kellett, John R. Erickson, Edward T. Cline, III
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Patent number: 5172259Abstract: 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: GrantFiled: February 27, 1991Date of Patent: December 15, 1992Assignee: AT&T LaboratoriesInventors: Thomas J. Cloonan, John R. Erickson, Anthony L. Lentine, Frederick B. McCormick, Jr., Gaylord W. Richards
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Patent number: 5153757Abstract: 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: GrantFiled: February 27, 1991Date of Patent: October 6, 1992Assignee: AT&T Bell LaboratoriesInventors: Thomas J. Cloonan, John R. Erickson, Anthony L. Lentine, Frederick B. McCormick, Jr., Gaylord W. Richards
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Patent number: 5001424Abstract: 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: GrantFiled: February 3, 1989Date of Patent: March 19, 1991Assignee: Product Resources, Inc.Inventors: I. Peter Kellett, John R. Erickson
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Patent number: 4053004Abstract: 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: GrantFiled: May 12, 1975Date of Patent: October 11, 1977Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Robert D. Barwise, Rodger A. Arola, John R. Erickson