Patents by Inventor Subba Narahari Rao

Subba Narahari Rao 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: 9956605
    Abstract: The present invention discloses a swaging die holder for the flexible shaft operations. In the preferred embodiment, the swaging die holder comprises of an elliptical die holder slot, a stress relief slot, a radius curve, a recess and an insert. The die holder slot at top of the die holder allows each die holder to mount to the machine. The insert is adapted through the recess at the bottom of each die holder and designed to produce the different output profiles at the end of the flexible shaft. The insert is made of HSS material with cobalt content to achieve optimal life. The insert is further re-grinded or re-sharpened for same or other profile applications of the flexible shaft.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: May 1, 2018
    Assignee: Suprajit Engineering Ltd.
    Inventors: Subba Narahari Rao, Pancham Koorana Anand
  • Publication number: 20170297083
    Abstract: The present invention discloses a swaging die holder for the flexible shaft operations. In the preferred embodiment, the swaging die holder comprises of an elliptical die holder slot, a stress relief slot, a radius curve, a recess and an insert. The die holder slot at top of the die holder allows each die holder to mount to the machine. The insert is adapted through the recess at the bottom of each die holder and designed to produce the different output profiles at the end of the flexible shaft. The insert is made of HSS material with cobalt content to achieve optimal life. The insert is further re-grinded or re-sharpened for same or other profile applications of the flexible shaft.
    Type: Application
    Filed: November 30, 2016
    Publication date: October 19, 2017
    Inventors: Subba Narahari RAO, Pancham KOORANA ANAND
  • Publication number: 20150252734
    Abstract: The present invention provides an assembly for lever shifter cable control having a choke return and a force enhancing mechanism. The assembly includes a first housing and a second housing. The first housing comprises of a first lever shifter movably mounted between the two halves of the casing for pivotal movement about a pivot axis. The second housing comprises of a second lever shifter with a torsion spring having two ends, wherein the one end of torsion spring is designed to hook to the second housing and the other end of torsion spring is designed to hook against the stiffing wall of the second lever shifter. The second housing is further attached with a wave spring to impart the lever force and to eliminate a friction bend in the cable assembly.
    Type: Application
    Filed: April 20, 2015
    Publication date: September 10, 2015
    Applicant: Suprajit Engineering Ltd.
    Inventors: Subba Narahari Rao, Basavaraj Ukanal, Mukund Rao
  • Patent number: 9046127
    Abstract: The assembly includes a casing having two halves defining a chamber there between and a lever shifter movably mounted between the two halves of the casing for pivotal movement, wherein the lever shifter configured for to and fro movement. The assembly has a roller-spring-sleeve unit operatively connected to the lever shifter for controlling the lever shifter. The assembly further has four numbers of snap fit units each comprising a flat spring configures into a U-shaped nylon molded part have been inserted into left and right covers to retain the casing to the panel. The assembly also has a cable assembly mounted on an abutment, wherein the abutment is housed within the casing by a snap fit and coupled to the lever shifter on one end and a control cable connected to the casing through the abutment through a hole in the casing on the other end.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: June 2, 2015
    Assignee: Suprajit Engineering Ltd.
    Inventors: Subba Narahari Rao, Basavaraj Ukanal, Mukund Rao
  • Publication number: 20140102241
    Abstract: The assembly includes a casing having two halves defining a chamber there between and a lever shifter movably mounted between the two halves of the casing for pivotal movement, wherein the lever shifter configured for to and fro movement. The assembly has a roller-spring-sleeve unit operatively connected to the lever shifter for controlling the lever shifter. The assembly further has four numbers of snap fit units each comprising a flat spring configures into a U-shaped nylon molded part have been inserted into left and right covers to retain the casing to the panel. The assembly also has a cable assembly mounted on an abutment, wherein the abutment is housed within the casing by a snap fit and coupled to the lever shifter on one end and a control cable connected to the casing through the abutment through a hole in the casing on the other end.
    Type: Application
    Filed: July 26, 2013
    Publication date: April 17, 2014
    Applicant: SUPRAJIT ENGINEERING LTD.
    Inventors: Subba Narahari Rao, Basavaraj Ukanal, Mukund Rao