Patents by Inventor Tanjil Mustafa

Tanjil Mustafa 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: 11745981
    Abstract: An elevator car or counterweight, comprising a frame, the frame including an upright structure in which a safety brake is mounted so as to allow for lateral movement of the safety brake relative to the upright structure; at least a first vertically or obliquely extending cantilever spring; wherein a first end of the first cantilever spring is mounted to the upright structure; and wherein the first cantilever spring is arranged such that a point remote from the first end provides a biasing force to the safety brake when the safety brake moves away from a default position. As the safety brake is mounted to allow for lateral movement relative to the frame, the safety brake essentially floats relative to the car or counterweight.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: September 5, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Javier Muñoz Sotoca, Tanjil Mustafa, James M. Draper
  • Patent number: 11724912
    Abstract: A method of resetting a braking device includes moving an elevator car upward, sliding a support member coupled to the braking device relative to the elevator car, and moving a brake wedge of the braking device along a sloped slide path.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: August 15, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Tanjil Mustafa
  • Publication number: 20220098006
    Abstract: A method of resetting a braking device includes moving an elevator car upward, sliding a support member coupled to the braking device relative to the elevator car, and moving a brake wedge of the braking device along a sloped slide path.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 31, 2022
    Inventor: Tanjil Mustafa
  • Patent number: 11242222
    Abstract: A support member of a braking device includes a body configured to couple to the braking device. The body has a first portion including a first inclined body surface and a second inclined body surface. The first portion is receivable within an opening having a first inclined opening surface and second inclined opening surface. The first inclined body surface is complementary to the first inclined opening surface and the first portion of the body is movable within the opening.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: February 8, 2022
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Tanjil Mustafa
  • Publication number: 20200354192
    Abstract: An elevator car or counterweight, comprising a frame, the frame including an upright structure in which a safety brake is mounted so as to allow for lateral movement of the safety brake relative to the upright structure; at least a first vertically or obliquely extending cantilever spring; wherein a first end of the first cantilever spring is mounted to the upright structure; and wherein the first cantilever spring is arranged such that a point remote from the first end provides a biasing force to the safety brake when the safety brake moves away from a default position. As the safety brake is mounted to allow for lateral movement relative to the frame, the safety brake essentially floats relative to the car or counterweight.
    Type: Application
    Filed: May 6, 2020
    Publication date: November 12, 2020
    Inventors: Javier Muñoz Sotoca, Tanjil Mustafa, James M. Draper
  • Publication number: 20200270098
    Abstract: An elevator system includes a traveling component movable along a guide rail within an elevator hoistway, the traveling component including a structural member; a safety block mounted to the structural member, the safety block translatable in a first direction and a second direction, the safety block including a first brake element and a second brake element; a biasing member configured to position the safety block in a first position corresponding to a first state in which neither the first brake element nor the second brake element is in contact with the guide rail; an actuator configured to translate the safety block in the first direction.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 27, 2020
    Inventors: Tanjil Mustafa, Yu Pu
  • Publication number: 20200131000
    Abstract: A support member of a braking device includes a body configured to couple to the braking device. The body has a first portion including a first inclined body surface and a second inclined body surface. The first portion is receivable within an opening having a first inclined opening surface and second inclined opening surface. The first inclined body surface is complementary to the first inclined opening surface and the first portion of the body is movable within the opening.
    Type: Application
    Filed: October 26, 2018
    Publication date: April 30, 2020
    Inventor: Tanjil Mustafa