Patents by Inventor Ping Duan

Ping Duan 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: 9181781
    Abstract: A method of making a reconfigurable article is disclosed. The method includes providing a powder comprising a plurality of base material particles. The method also includes providing a powder comprising a plurality of removable material particles; and forming a base article from the base material comprising a plurality of removable material particles. A method of using a reconfigurable article is also disclosed. The method includes forming a base article, the base article comprising a base material and a removable material, wherein the base article comprises a downhole tool or component. The method also includes inserting the base article into a wellbore. The method further includes performing a first operation utilizing the base article; exposing the removable material of the base article to a wellbore condition that is configured to remove the removable material and form a modified article; and performing a second operation using the article.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: November 10, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Gaurav Agrawal, Zhiyue Xu, Ping Duan, James Goodson, James B. Crews
  • Patent number: 9144925
    Abstract: Disclosed is a process for making shape memory polyphenylene sulfide, comprising: curing polyphenylene sulfide to produce cured polyphenylene sulfide; comminuting the cured polyphenylene sulfide to form cured polyphenylene sulfide particles; disposing the cured polyphenylene sulfide particles in a mold; heating the mold for flowing the cured polyphenylene sulfide; compressing, by applying a compressive force, the cured polyphenylene sulfide; cooling the cured polyphenylene sulfide; relieving the compressive force; and de-molding the cured polyphenylene sulfide to produce the shape memory polyphenylene sulfide.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: September 29, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Jiaxiang Ren, David P. Gerrard, James E. Goodson, Ping Duan, Gaurav Agrawal
  • Patent number: 9120898
    Abstract: A method of preparing a cured thermoplastic material includes curing a thermoplastic polymer having a thermal decomposition temperature greater than or equal to about 200° C., at a temperature of about 200° C. to about 400° C., for a total time of less than or equal to 200 hours. A method of making a shape memory material also includes curing a thermoplastic polymer to prepare a cured thermoplastic material.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: September 1, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Jiaxiang Ren, David Peter Gerrard, James Edward Goodson, Ping Duan, Lillian Guo
  • Patent number: 9051819
    Abstract: A flow control device and a method of controlling a flow, the flow control device including a flow path for a fluid therethrough and a material at least partially defining the flow path, the material operatively arranged with a surface energy less than that of the fluid for passively impeding an undesirable component of the fluid more than a desirable component of the fluid.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: June 9, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Anil K. Sadana, Jiaxiang Ren, Ping Duan, David P. Gerrard
  • Patent number: 9040818
    Abstract: An electronic device with an inbuilt mechanism sealing unused interface holes, or gaps, against dust is disclosed. The dust-proof mechanism includes two blocking members and two elastic members. The two blocking members are movably mounted on a bottom wall of a housing and close an interface hole in the manner of drawn curtains. The two blocking members are urged together by the elastic members. When an object is inserted into the interface hole, the guiding surfaces guide and ride over the inserted object, moving the two blocking members away from each other. When the object is pulled out of the interface hole, the two blocking members are moved back toward each other by the elastic members.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: May 26, 2015
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Ju-Ping Duan
  • Patent number: 8980799
    Abstract: A method of deploying a borehole filtration device is provided utilizing the steps of: deploying a filtration device comprising a polymer foam having a first cell structure, a portion of the molecular structure of which polymer foam is degradable by exposure to a post-treatment fluid, into a borehole; and exposing the polymer foam to the post-treatment fluid, thereby modifying the cell structure of the polymer foam to a second cell structure.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: March 17, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Gaurav Agrawal, Ping Duan
  • Patent number: 8940841
    Abstract: A crosslinked product of a polyarylene is disclosed, having high-temperature elastomeric properties and excellent chemical resistance. The crosslinked materials are useful in oil and gas downhole applications in the form of either solids or foams. Methods for the manufacture of the crosslinked product and articles comprising the product are also disclosed.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: January 27, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Ping Duan, Gaurav Agrawal, David P. Gerrard
  • Patent number: 8939222
    Abstract: A downhole element to isolate or complete a wellbore includes a shape memory material including polyphenylene sulfide. The polyphenylene sulfide is the cure product of being cured at a temperature of about 200° C. to about 400° C., for a total time of less than or equal to 200 hours. The shape memory material is thermally activated between an actuated and unactuated shape, and the polyphenylene sulfide in the shape memory material is a closed cell foam, open cell foam, or solid.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: January 27, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Jiaxiang Ren, David P. Gerrard, James E. Goodson, Li Guo, Ping Duan
  • Publication number: 20140374086
    Abstract: A reconfigurable downhole article is disclosed. The article comprises a base material. The article also comprises a removable material disposed on or within the base material that is configured for removal from the base material in response to a wellbore condition, wherein the base material and the removable material define a base article that is configured to perform a first function, and wherein upon removal of the removable material, the base material defines a modified article that is configured to perform a second function that is different than the first function.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Gaurav Agrawal, Zhiyue Xu, Ping Duan, James Goodson, Andre Porter, James B. Crews
  • Patent number: 8902586
    Abstract: An electronic device includes a housing, a circuit board and a volume button. The housing defining a slot, and includes a fixing block. The fixing block is formed on an inner wall of the housing and positioned adjacent to one end of the slot. A through hole is formed in the fixing block. The circuit board received in the housing includes a volume control module and a mute control module positioned adjacent to the slot. The volume button is movably positioned in the slot and exposed out of the housing. The volume button includes a volume increasing portion and the volume decreasing portion. The volume increasing portion and the volume decreasing portion can be pushed on the volume control module. One end of the volume button passes through the through hole and is capable of triggering the mute control module.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: December 2, 2014
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Ju-Ping Duan, Ming-Fu Luo
  • Patent number: 8902609
    Abstract: A portable electronic device includes a housing defining a mounting slot; and a chip card holding mechanism assembled within the housing for holding a chip card. The chip card holding mechanism includes a receiving tray slidably mounted on the housing, and an unlocking assembly for unlocking and ejecting the receiving tray. The receiving tray includes a tray body and a draw-off portion formed at one end of the tray body. The draw-off portion has an inclined resisting surface towards the tray body. The unlocking assembly is mounted in the housing and capable of resisting the inclined resisting surface to drive the receiving tray to move relative to the housing, and thereby eject the receiving tray.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: December 2, 2014
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Ju-Ping Duan, Ming-Fu Luo
  • Patent number: 8897026
    Abstract: A locking assembly includes a guiding post and a hollow locking member. The guiding post includes a locking portion. A clamp hook is formed on a flange of the locking portion. The locking member includes an opening end. The locking member sleeves on the locking portion of the locking member, in which at least one clamping depression is formed on an inner wall of the locking member corresponding to the clamp hook, and the clamp hook is clamped in one clamping depression.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: November 25, 2014
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventor: Ju-Ping Duan
  • Patent number: 8861223
    Abstract: An electronic device includes a housing and at least one connector assembly. The housing includes a bottom wall and a sidewall. The sidewall includes an outer side surface, a top surface and an inner side surface. At least one insertion interface is defined through the outer side surface. One resisting groove is defined on each end wall of the insertion interface. The top surface forms at least one receiving groove communicating with the corresponding insertion interface. Each connector assembly includes a connecting member and a connector. The connecting member includes a main body and two positioning ends protruding from the main body. The main body is received in the receiving groove. Each positioning end passes through the receiving groove and extends into the insertion interface to resist a side wall of one resisting groove. The connector is received in the insertion interface and resists between the two positioning ends.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: October 14, 2014
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Ju-Ping Duan, Ming-Fu Luo
  • Patent number: 8829119
    Abstract: A crosslinked product of a polyarylene is disclosed, having high-temperature elastomeric properties and excellent chemical resistance. The crosslinked materials are useful in oil and gas downhole applications in the form of either solids or foams. Methods for the manufacture of the crosslinked product and articles comprising the product are also disclosed.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: September 9, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Ping Duan, Gaurav Agrawal, David P. Gerrard
  • Publication number: 20140167312
    Abstract: A method of preparing a cured thermoplastic material includes curing a thermoplastic polymer having a thermal decomposition temperature greater than or equal to about 200° C., at a temperature of about 200° C. to about 400° C., for a total time of less than or equal to 200 hours. A method of making a shape memory material also includes curing a thermoplastic polymer to prepare a cured thermoplastic material.
    Type: Application
    Filed: August 15, 2013
    Publication date: June 19, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Jiaxiang Ren, David Gerrard, James Edward Goodson, Ping Duan, Lillian Guo
  • Patent number: 8749900
    Abstract: An electronic device using a lens module is disclosed. The lens module for a housing, comprises a barrel comprising a containing portion; and at least one lens insert molded mounted in the containing portion; wherein the containing portion comprises an inner sidewall, and a first latching portion in the inner sidewall; the at least one lens comprises a main body, and a second latching portion extends outward from a side surface of the main body; the second latching portion is received in the first latching portion.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: June 10, 2014
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Ju-Ping Duan, Ming-Fu Luo, Fa-Guang Shi
  • Patent number: 8739408
    Abstract: A shape memory polymer is initially fabricated to a size where its peripheral dimension will be at least as large as the borehole wall in which it is to be deployed. After the initial manufacturing the material temperature is elevated above the transition temperature and the material is stretched on a mandrel to retain its inside dimension as its outside dimension is reduced to size that will allow running the seal to a desired subterranean location without failing the material during the stretching. The material is allowed to cool below the transition temperature to hold the new shape. The material on the mandrel is then secured to a tubular string and delivered to the desired location. Wellbore fluid at given temperature raises the material again above the transition temperature, which causes the material to revert to its originally manufactured shape.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: June 3, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Ping Duan, Steve Rosenblatt
  • Patent number: 8722784
    Abstract: A polymer nanocomposite comprises a polymer; and a nanoparticle derivatized to include functional groups including carboxy, epoxy, ether, ketone, amine, hydroxy, alkoxy, alkyl, aryl, aralkyl, alkaryl, lactone, functionalized polymeric or oligomeric groups, or a combination comprising at least one of the forgoing functional groups. The variability in tensile strength and percent elongation for the polymer nanocomposite is less than the variability of these properties obtained where an underivatized nanoparticle is included in place of the derivatized nanoparticle.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: May 13, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Soma Chakraborty, Ping Duan, Gaurav Agrawal, Michael H Johnson
  • Publication number: 20140076599
    Abstract: An electronic device with an inbuilt mechanism sealing unused interface holes, or gaps, against dust is disclosed. The dust-proof mechanism includes two blocking members and two elastic members. The two blocking members are movably mounted on a bottom wall of a housing and close an interface hole in the manner of drawn curtains. The two blocking members are urged together by the elastic members. When an object is inserted into the interface hole, the guiding surfaces guide and ride over the inserted object, moving the two blocking members away from each other. When the object is pulled out of the interface hole, the two blocking members are moved back toward each other by the elastic members.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 20, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., FU TAI HUA INDUSTRY (SHENZHEN) CO., LTD.
    Inventor: JU-PING DUAN
  • Publication number: 20140071337
    Abstract: An electronic device includes a housing, a shield cover, a camera module, and a plurality of light emitting members. A connecting hole is defined in the housing. The transparent protective cover is positioned in the connecting hole. The shield cover is positioned in the housing facing the connecting hole. The camera module is positioned and is received in the shield cover. The plurality of light emitting members is positioned and is received in the shield cover around the camera module.
    Type: Application
    Filed: April 8, 2013
    Publication date: March 13, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., FU TAI HUA INDUSTRY (SHENZHEN) CO., LTD.
    Inventors: JU-PING DUAN, MING-FU LUO