Patents by Inventor Chi Hoang

Chi Hoang 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).

  • Patent number: 9810971
    Abstract: There is disclosed a compact motorized dolly including an elongated casing incorporating a power source and at least one drive motor, a first circular wheel rotably affixed to the distal end of the elongated casing and the at least one drive motor such that actuation of the at least one drive motor causes the first circular wheel to turn, and a device mount secured to the compact motorized dolly such that a device mounted to the device mount moves along with the compact motorized dolly when the drive motor is activated.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: November 7, 2017
    Inventor: Chi Hoang
  • Publication number: 20160259229
    Abstract: There is disclosed a compact motorized dolly including an elongated casing incorporating a power source and at least one drive motor, a first circular wheel rotably affixed to the distal end of the elongated casing and the at least one drive motor such that actuation of the at least one drive motor causes the first circular wheel to turn, and a device mount secured to the compact motorized dolly such that a device mounted to the device mount moves along with the compact motorized dolly when the drive motor is activated.
    Type: Application
    Filed: February 29, 2016
    Publication date: September 8, 2016
    Inventor: Chi Hoang
  • Patent number: 8401994
    Abstract: A plurality of mid-tier databases form a single, consistent cache grid for data in a one or more backend data sources, such as a database system. The mid-tier databases may be standard relational databases. Cache agents at each mid-tier database swap in data from the backend database as needed. Consistency in the cache grid is maintained by ownership locks. Cache agents prevent database operations that will modify cached data in a mid-tier database unless and until ownership of the cached data can be acquired for the mid-tier database. Cache groups define what backend data may be cached, as well as a general structure in which the backend data is to be cached. Metadata for cache groups is shared to ensure that data is cached in the same form throughout the entire grid. Ownership of cached data can then be tracked through a mapping of cached instances of data to particular mid-tier databases.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: March 19, 2013
    Assignee: Oracle International Corporation
    Inventors: Chi Hoang, Tirthankar Lahiri, Marie-Anne Neimat, Chih-Ping Wang, John Miller, Dilys Thomas, Nagender Bandi, Susan Cheng
  • Publication number: 20110072217
    Abstract: A plurality of mid-tier databases form a single, consistent cache grid for data in a one or more backend data sources, such as a database system. The mid-tier databases may be standard relational databases. Cache agents at each mid-tier database swap in data from the backend database as needed. Consistency in the cache grid is maintained by ownership locks. Cache agents prevent database operations that will modify cached data in a mid-tier database unless and until ownership of the cached data can be acquired for the mid-tier database. Cache groups define what backend data may be cached, as well as a general structure in which the backend data is to be cached. Metadata for cache groups is shared to ensure that data is cached in the same form throughout the entire grid. Ownership of cached data can then be tracked through a mapping of cached instances of data to particular mid-tier databases.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 24, 2011
    Inventors: Chi Hoang, Tirthankar Lahiri, Marie-Anne Neimat, Chih-Ping Wang, John Miller, Dilys Thomas, Nagender Bandi, Susan Cheng
  • Patent number: 7479056
    Abstract: An automated drill bit sharpening and verification system employing one or more electronic optical assemblies for gathering orientation data of a drill bit to be sharpened. The drill bit is rotated and aligned to a grinding assembly based on the orientation data. The orientation data of the drill bit may be gathered by illuminating a cutting tip of the drill bit with an illumination ring. Additionally, the orientation data of the drill bit may be gathered by capturing two views (e.g., orthogonal views or front and side views) of the cutting tip of the drill bit.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: January 20, 2009
    Assignee: Kycera Tycom Corporation
    Inventors: Paul D Mortell, Chi Hoang, David M. McElrone, Gary P Erpenbeck, Walter James Frandsen, Jr., Charles Shafee Slemon
  • Patent number: 7338344
    Abstract: A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof. The apparatus comprises a housing having a pair of cassette trays, a pair of grinding assemblies, a pair of optical assemblies, a pair of primary cleaning assemblies, a pair of secondary cleaning assemblies, a pair of inversion assemblies, a pair of workhead assemblies, a bumping assembly, and a loader assembly attached thereto. The workhead and loader assemblies are used to transport drill bits between the cassette trays and other assemblies in a selected sequence which is controlled and coordinated by a programmable control device. The control device is electrically interfaced to each of the assemblies and allows the cutting tip re-sharpening and locating ring re-positioning processes to be conducted simultaneously on at least two drill bits.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: March 4, 2008
    Inventors: Paul D Mortell, Chi Hoang, David M. McElrone, Gary P Erpenbeck, Walter James Frandsen, Jr., Charles Shafee Slemon
  • Publication number: 20070141963
    Abstract: A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof. The apparatus comprises a housing having a pair of cassette trays, a pair of grinding assemblies, a pair of optical assemblies, a pair of primary cleaning assemblies, a pair of secondary cleaning assemblies, a pair of inversion assemblies, a pair of workhead assemblies, a bumping assembly, and a loader assembly attached thereto. The workhead and loader assemblies are used to transport drill bits between the cassette trays and other assemblies in a selected sequence which is controlled and coordinated by a programmable control device. The control device is electrically interfaced to each of the assemblies and allows the cutting tip re-sharpening and locating ring re-positioning processes to be conducted simultaneously on at least two drill bits.
    Type: Application
    Filed: February 8, 2007
    Publication date: June 21, 2007
    Inventors: Paul Mortell, Chi Hoang, David McElrone, Gary Erpenbeck, Walter Frandsen, Charles Slemon
  • Patent number: 7070483
    Abstract: A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof. The apparatus comprises a housing having a pair of cassette trays, a pair of grinding assemblies, a pair of optical assemblies, a pair of primary cleaning assemblies, a pair of secondary cleaning assemblies, a pair of inversion assemblies, a pair of workhead assemblies, a bumping assembly, and a loader assembly attached thereto. The workhead and loader assemblies are used to transport drill bits between the cassette trays and other assemblies in a selected sequence which is controlled and coordinated by a programmable control device. The control device is electrically interfaced to each of the assemblies and allows the cutting tip re-sharpening and locating ring re-positioning processes to be conducted simultaneously on at least two drill bits.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: July 4, 2006
    Assignee: Kycera Tycom Corporation
    Inventors: Paul D Mortell, Chi Hoang, David M. McElrone, Gary P. Erpenbeck, Walter James Frandsen, Jr., Charles Shafee Slemon
  • Publication number: 20060128272
    Abstract: A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof. The apparatus comprises a housing having a pair of cassette trays, a pair of grinding assemblies, a pair of optical assemblies, a pair of primary cleaning assemblies, a pair of secondary cleaning assemblies, a pair of inversion assemblies, a pair of workhead assemblies, a bumping assembly, and a loader assembly attached thereto. The workhead and loader assemblies are used to transport drill bits between the cassette trays and other assemblies in a selected sequence which is controlled and coordinated by a programmable control device. The control device is electrically interfaced to each of the assemblies and allows the cutting tip re-sharpening and locating ring re-positioning processes to be conducted simultaneously on at least two drill bits.
    Type: Application
    Filed: February 7, 2006
    Publication date: June 15, 2006
    Inventors: Paul Mortell, Chi Hoang, David McElrone, Gary Erpenbeck, Walter Frandsen, Charles Slemon
  • Publication number: 20060027045
    Abstract: A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof. The apparatus comprises a housing having a pair of cassette trays, a pair of grinding assemblies, a pair of optical assemblies, a pair of primary cleaning assemblies, a pair of secondary cleaning assemblies, a pair of inversion assemblies, a pair of workhead assemblies, a bumping assembly, and a loader assembly attached thereto. The workhead and loader assemblies are used to transport drill bits between the cassette trays and other assemblies in a selected sequence which is controlled and coordinated by a programmable control device. The control device is electrically interfaced to each of the assemblies and allows the cutting tip re-sharpening and locating ring re-positioning processes to be conducted simultaneously on at least two drill bits.
    Type: Application
    Filed: October 4, 2005
    Publication date: February 9, 2006
    Inventors: Paul Mortell, Chi Hoang, David McElrone, Gary Erpenbeck, Walter Frandsen, Charles Slemon
  • Patent number: 6517411
    Abstract: A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof. The apparatus comprises a housing having a pair of cassette trays, a pair of grinding assemblies, a pair of optical assemblies, a pair of primary cleaning assemblies, a pair of secondary cleaning assemblies, a pair of inversion assemblies, a pair of workhead assemblies, a bumping assembly, and a loader assembly attached thereto. The workhead and loader assemblies are used to transport drill bits between the cassette trays and other assemblies in a selected sequence which is controlled and coordinated by a programmable control device. The control device is electrically interfaced to each of the assemblies and allows the cutting tip re-sharpening and locating ring re-positioning processes to be conducted simultaneously on at least two drill bits.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: February 11, 2003
    Assignee: Tycom Corp.
    Inventors: Paul D Mortell, Chi Hoang, David M. McElrone, Gary P. Erpenbeck, Walter James Frandsen, Jr., Charles Shafee Slemon
  • Publication number: 20020168922
    Abstract: A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof. The apparatus comprises a housing having a pair of cassette trays, a pair of grinding assemblies, a pair of optical assemblies, a pair of primary cleaning assemblies, a pair of secondary cleaning assemblies, a pair of inversion assemblies, a pair of workhead assemblies, a bumping assembly, and a loader assembly attached thereto. The workhead and loader assemblies are used to transport drill bits between the cassette trays and other assemblies in a selected sequence which is controlled and coordinated by a programmable control device. The control device is electrically interfaced to each of the assemblies and allows the cutting tip re-sharpening and locating ring re-positioning processes to be conducted simultaneously on at least two drill bits.
    Type: Application
    Filed: April 30, 2002
    Publication date: November 14, 2002
    Inventors: Paul D. Mortell, Chi Hoang, David M. McElrone, Gary P. Erpenbeck, Walter James Frandsen, Charles Shafee Slemon
  • Publication number: 20010021626
    Abstract: A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof. The apparatus comprises a housing having a pair of cassette trays, a pair of grinding assemblies, a pair of optical assemblies, a pair of primary cleaning assemblies, a pair of secondary cleaning assemblies, a pair of inversion assemblies, a pair of workhead assemblies, a bumping assembly, and a loader assembly attached thereto. The workhead and loader assemblies are used to transport drill bits between the cassette trays and other assemblies in a selected sequence which is controlled and coordinated by a programmable control device. The control device is electrically interfaced to each of the assemblies and allows the cutting tip re-sharpening and locating ring re-positioning processes to be conducted simultaneously on at least two drill bits.
    Type: Application
    Filed: March 12, 2001
    Publication date: September 13, 2001
    Inventors: Paul D. Mortell, Chi Hoang, David M. McElrone, Gary P. Erpenbeck, Walter James Frandsen, Jr., Charles Shafee Slemon
  • Patent number: 6283824
    Abstract: A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof. The apparatus comprises a housing having a pair of cassette trays, a pair of grinding assemblies, a pair of optical assemblies, a pair of primary cleaning assemblies, a pair of secondary cleaning assemblies, a pair of inversion assemblies, a pair of workhead assemblies, a bumping assembly, and a loader assembly attached thereto. The workhead and loader assemblies are used to transport drill bits between the cassette trays and other assemblies in a selected sequence which is controlled and coordinated by a programmable control device. The control device is electrically interfaced to each of the assemblies and allows the cutting tip re-sharpening and locating ring re-positioning processes to be conducted simultaneously on at least two drill bits.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: September 4, 2001
    Assignee: Tycom Corporation
    Inventors: Paul D Mortell, Chi Hoang, David M. McElrone, Gary P. Erpenbeck, Walter James Frandsen, Jr., Charles Shafee Slemon
  • Patent number: 6030276
    Abstract: A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof. The apparatus comprises a housing having a pair of cassette trays, a pair of grinding assemblies, a pair of optical assemblies, a pair of primary cleaning assemblies, a pair of secondary cleaning assemblies, a pair of inversion assemblies, a pair of workhead assemblies, a bumping assembly, and a loader assembly attached thereto. The workhead and loader assemblies are used to transport drill bits between the cassette trays and other assemblies in a selected sequence which is controlled and coordinated by a programmable control device. The control device is electrically interfaced to each of the assemblies and allows the cutting tip re-sharpening and locating ring repositioning processes to be conducted simultaneously on at least two drill bits.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: February 29, 2000
    Assignee: Tycom Corporation
    Inventors: Paul D. Mortell, Chi Hoang, David M. McElrone, Gary P. Erpenbeck, Walter James Frandsen, Jr., Charles Shafee Slemon
  • Patent number: D1128218
    Type: Grant
    Filed: March 19, 2025
    Date of Patent: May 26, 2026
    Inventor: Chi Hoang