Patents by Inventor Julian Liu

Julian Liu 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: 12090115
    Abstract: A cable tension adjuster for a manually operated, height-adjustable wheeled vehicle. The vehicle includes a brake assembly including a brake cable assembly and a brake cable housing shaped to enclose an excess portion of the brake cable assembly. The brake assembly includes a cable adjuster coupled to the brake cable assembly, where the cable adjuster is enclosed by the brake cable housing. The brake cable housing provides an access port to access the cable tension adjuster.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: September 17, 2024
    Inventor: Julian Liu
  • Patent number: 11648922
    Abstract: A brake assembly for a manually-operated, height-adjustable wheeled vehicle according to a first aspect includes a brake cable assembly. The brake assembly includes a brake cable housing shaped to enclose an excess portion of the brake cable assembly. The brake assembly includes a cable adjuster coupled to the brake cable assembly. The cable adjuster is enclosed by the brake cable housing. There is additionally provided a wheel fork assembly for a manually-operated, height-adjustable wheeled vehicle according to a first aspect. The vehicle includes a frame member. The wheel fork assembly includes a mount shaped to couple with a lower end of the frame member of the vehicle. The mount has a longitudinal axis. The wheel fork assembly includes a wheel fork having a longitudinal axis offset from the longitudinal axis of the mount. The wheel fork is integrally coupled to and formed with the mount.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: May 16, 2023
    Assignee: Evolution Technologies Inc.
    Inventor: Julian Liu
  • Publication number: 20220347042
    Abstract: The present application relates to a cable tension adjuster for a manually operated, height-adjustable wheeled vehicle. The vehicle includes a brake assembly including a brake cable assembly and a brake cable housing shaped to enclose an excess portion of the brake cable assembly. The brake assembly includes a cable adjuster coupled to the brake cable assembly, where the cable adjuster is enclosed by the brake cable housing. The brake cable housing provides an access port to access the cable tension adjuster.
    Type: Application
    Filed: September 28, 2019
    Publication date: November 3, 2022
    Inventor: Julian LIU
  • Patent number: 11220246
    Abstract: A patient transport apparatus includes a height-adjustable assembly having a longitudinal axis. The apparatus includes a brake cable. The brake cable includes an elongate portion extending along the height-adjustable assembly and includes a slack portion. The apparatus includes a brake cable housing coupled to and axially offset from the height-adjustable assembly. The slack portion of the brake cable is enclosed within a hollow interior of the brake cable housing.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: January 11, 2022
    Assignee: Evolution Technologies Inc.
    Inventor: Julian Liu
  • Publication number: 20200346627
    Abstract: There is provided a patient transport apparatus. The apparatus includes a height-adjustable assembly having a longitudinal axis. The apparatus includes a brake cable. The brake cable includes an elongate portion extending along the height-adjustable assembly and includes a slack portion. The apparatus includes a brake cable housing coupled to and axially offset from the height-adjustable assembly. The slack portion of the brake cable is enclosed within a hollow interior of the brake cable housing.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Inventor: Julian LIU
  • Patent number: 10730489
    Abstract: A patient transport apparatus includes a height-adjustable assembly having a longitudinal axis, and a brake assembly comprising a brake cable. The brake cable includes an elongate portion extending along the height-adjustable assembly and a slack portion. The patient transport apparatus further includes a brake cable housing coupled to and axially offset from the height-adjustable assembly. The slack portion of the brake cable is enclosed within a hollow interior of the brake cable housing.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: August 4, 2020
    Assignee: Evolution Technologies Inc.
    Inventor: Julian Liu
  • Publication number: 20200146926
    Abstract: A brake assembly for a manually-operated, height-adjustable wheeled vehicle according to a first aspect includes a brake cable assembly. The brake assembly includes a brake cable housing shaped to enclose an excess portion of the brake cable assembly. The brake assembly includes a cable adjuster coupled to the brake cable assembly. The cable adjuster is enclosed by the brake cable housing. There is additionally provided a wheel fork assembly for a manually-operated, height-adjustable wheeled vehicle according to a first aspect. The vehicle includes a frame member. The wheel fork assembly includes a mount shaped to couple with a lower end of the frame member of the vehicle. The mount has a longitudinal axis. The wheel fork assembly includes a wheel fork having a longitudinal axis offset from the longitudinal axis of the mount. The wheel fork is integrally coupled to and formed with the mount.
    Type: Application
    Filed: January 9, 2020
    Publication date: May 14, 2020
    Inventor: Julian LIU
  • Publication number: 20190009758
    Abstract: There is provided a patient transport apparatus. The apparatus includes a height-adjustable assembly having a longitudinal axis. The apparatus includes a brake cable. The brake cable includes an elongate portion extending along the height-adjustable assembly and includes a slack portion. The apparatus includes a brake cable housing coupled to and axially offset from the height-adjustable assembly. The slack portion of the brake cable is enclosed within a hollow interior of the brake cable housing.
    Type: Application
    Filed: August 21, 2018
    Publication date: January 10, 2019
    Inventor: Julian LIU
  • Patent number: 10053062
    Abstract: A brake assembly for a height-adjustable walker apparatus is provided. The brake assembly includes a brake actuator, a wheel-engaging brake member and a brake cable assembly. The brake cable assembly includes a flexible, inner cable. The brake cable assembly includes a flexible, outer casing through which the inner cable extends and is moveable relative to. The inner cable has a first end coupled to the brake actuator and a second end coupled to the wheel-engaging brake member. The brake assembly includes a brake cable housing shaped to enclose a slack portion of the brake cable assembly.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: August 21, 2018
    Assignee: Evolution Technologies Inc.
    Inventor: Julian Liu
  • Patent number: 9763545
    Abstract: The present invention relates to a bath seat. The bath seat has a top, a front end, and a back end opposite thereof. The top extends between the front end and the back end of the bath seat. The top includes a centrally disposed channel. The channel includes an enlarged first end, a second end opposite thereof, and a connecting portion connecting the ends of the channel together. The second end of the channel aligns with one of the front end and the back end of the seat. Fluid entering into the channel is directed to the second end of the channel, past said one of the front end and the back end of the seat and thereby drains from the seat.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: September 19, 2017
    Assignee: EVOLUTION TECHNOLOGIES INC.
    Inventor: Julian Liu
  • Patent number: 9744094
    Abstract: There is provided a walker apparatus having a pair of spaced-apart, upright frame members. The walker apparatus includes a seat operatively connected to the upright frame members. The walker apparatus has a backrest cantilevered from the frame members. The backrest has at least one opening extending therethrough for permitting a user's vision past the backrest when the user grips the upright frame members.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: August 29, 2017
    Assignee: Evolution Technologies Inc.
    Inventors: Julian Liu, Nicolas Cinguino
  • Patent number: 9623888
    Abstract: The present invention provides a folding mechanism for a walker apparatus. The folding mechanism includes a pair of spaced-apart inner frame members. Each of the inner frame members has a first part and a second part hingedly connected together. The folding mechanism includes a pair of link members diagonally extending between and pivotally connecting to the inner frame members. The link members operatively connect the inner frame members together. According to another aspect, there is provided a walker apparatus having a pair of spaced-apart, foldable inner frame members and a pair of diagonally-extending link members. The link members connect the inner frame members together.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: April 18, 2017
    Assignee: EVOLUTION TECHNOLOGIES INC.
    Inventor: Julian Liu
  • Publication number: 20170058930
    Abstract: There is provided an assembly for selectively coupling together elongate members, of a walker apparatus. The assembly includes-a push-responsive actuator actuation of a first portion, of which promotes coupling of the elongate members together. The assembly includes an actuator-engagement member moveable from an unengaged position spaced-apart from the, actuator to an engaged position in which the actuator-engagement member extends across and actuates the first portion of the actuator.
    Type: Application
    Filed: September 1, 2016
    Publication date: March 2, 2017
    Inventor: Julian LIU
  • Publication number: 20170057473
    Abstract: There is provided a brake assembly for a height-adjustable walker apparatus. The brake assembly includes a brake actuator, a wheel-engaging brake member and a brake cable assembly. The brake cable assembly includes a flexible, inner cable. The brake cable assembly includes a flexible, outer casing through which the inner cable extends and is moveable relative to. The inner cable has a first end coupled to the brake actuator and a second end coupled to the wheel-engaging brake member. The brake assembly includes a brake cable housing shaped to enclose a slack portion of the brake cable assembly.
    Type: Application
    Filed: December 11, 2015
    Publication date: March 2, 2017
    Inventor: Julian LIU
  • Publication number: 20160250095
    Abstract: There is provided a walker apparatus having a pair of spaced-apart, upright frame members. The walker apparatus includes a seat operatively connected to the upright frame members. The walker apparatus has a backrest cantilevered from the frame members. The backrest has at least one opening extending therethrough for permitting a user's vision past the backrest when the user grips the upright frame members.
    Type: Application
    Filed: May 9, 2016
    Publication date: September 1, 2016
    Inventors: Julian LIU, Nicolas CINGUINO
  • Patent number: 9415635
    Abstract: There is provided a mounting assembly for connecting a wheel fork to a walker apparatus. The assembly comprises a frame portion of the walker apparatus having an upper bore, lower bore, and passageway extending between and positioned radially inwards relative to the bores. The frame portion has a first annular seat located between the upper bore and the passageway. A second annular seat is located between the lower bore and the passageway. The mounting assembly comprises a shaft assembly having a threaded upper end and an annular shoulder positioned below and extending radially outwards relative to the upper end. The annular shoulder is shaped to abut the second annular seat. The shaft assembly includes a lower portion spaced-apart from the upper end and rotatably connecting to the wheel fork. The mounting assembly comprises a connecting member threadably engageable with the upper end and abuttable with the first annular seat.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: August 16, 2016
    Assignee: Evolution Technologies Inc.
    Inventor: Julian Liu
  • Publication number: 20160183735
    Abstract: The present invention relates to a bath seat. The bath seat has a top, a front end, and a back end opposite thereof. The top extends between the front end and the back end of the bath seat. The top includes a centrally disposed channel. The channel includes an enlarged first end, a second end opposite thereof, and a connecting portion connecting the ends of the channel together. The second end of the channel aligns with one of the front end and the back end of the seat. Fluid entering into the channel is directed to the second end of the channel, past said one of the front end and the back end of the seat and thereby drains from the seat.
    Type: Application
    Filed: March 7, 2016
    Publication date: June 30, 2016
    Inventor: Julian LIU
  • Patent number: 9339432
    Abstract: There is provided a walker apparatus having a pair of spaced-apart, upright frame members. The walker apparatus includes a seat operatively connected to the upright frame members. The walker apparatus has a backrest cantilevered from the frame members. The backrest has at least one opening extending therethrough for permitting a user's vision past the backrest when the user grips the upright frame members.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: May 17, 2016
    Assignee: Evolution Technologies Inc.
    Inventors: Julian Liu, Nicolas Cinguino
  • Patent number: D828701
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: September 18, 2018
    Assignee: EVOLUTION TECHNOLOGIES INC.
    Inventor: Julian Liu
  • Patent number: D886494
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: June 9, 2020
    Assignee: EVOLUTION TECHNOLOGIES INC.
    Inventor: Julian Liu