Patents by Inventor Ayoub E. Maher

Ayoub E. Maher 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).

  • Publication number: 20210041037
    Abstract: A low profile solenoid cartridge valve with replaceable spool preferably includes a valve body, a valve spool, a spool return spring, a solenoid coil, a solenoid plunger and plunger return spring. The valve body includes a spool body, a solenoid body and a threaded manifold end. A spool inner diameter is sized to receive the valve spool. The valve spool includes a chamfered neck. A plunger bore is formed through the solenoid body to receive the solenoid plunger. The solenoid coil includes a coil body and an electrical connector. A solenoid counter bore is formed in the solenoid body to receive the coil body. A chamfered slot is formed on one end of the solenoid plunger. The chamfered slot engages the chamfered neck of the valve spool and forces the valve spool upward to open a flow path in a valve manifold.
    Type: Application
    Filed: August 9, 2019
    Publication date: February 11, 2021
    Inventors: Ayoub E. Maher, Shu Wang
  • Patent number: 10914395
    Abstract: A low profile solenoid cartridge valve with replaceable spool preferably includes a valve body, a valve spool, a spool return spring, a solenoid coil, a solenoid plunger and plunger return spring. The valve body includes a spool body, a solenoid body and a threaded manifold end. A spool inner diameter is sized to receive the valve spool. The valve spool includes a chamfered neck. A plunger bore is formed through the solenoid body to receive the solenoid plunger. The solenoid coil includes a coil body and an electrical connector. A solenoid counter bore is formed in the solenoid body to receive the coil body. A chamfered slot is formed on one end of the solenoid plunger. The chamfered slot engages the chamfered neck of the valve spool and forces the valve spool upward to open a flow path in a valve manifold.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: February 9, 2021
    Assignees: ZOOMLION HEAVY INDUSTRY NA, INC., ZOOMLION HEAVY INDUSTRY SCIENCE & TECHNOLOGY CO., LTD
    Inventors: Ayoub E. Maher, Shu Wang
  • Patent number: 7114433
    Abstract: A valve stack for a work machine is disclosed. The valve stack has first and second valve bodies, each with first and second mounting surfaces and first and second valve members. The valve stack further has a third valve body with a mounting surface configured to engage the second mounting surfaces of the first and second valve bodies, and at least one valve member disposed within the third valve body. The at least one valve member is movable between a first position at which movement of a first operator control device corresponds to movement of the first valve member and movement of a second operator control device corresponds to movement of the second valve member, and a second position at which movement of the first operator control device corresponds to movement of the second valve member and movement of the second operator control device corresponds to movement of the first valve member.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: October 3, 2006
    Assignee: Caterpillar, Inc.
    Inventors: Anil Kumar R. Shenoy, John R. Connolly, Ayoub E. Maher