Patents by Inventor Yehia Mahmoud Amr

Yehia Mahmoud Amr 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).

  • Transport refrigeration unit
    Patent number: 6543244
    Abstract: A transport refrigeration unit is utilized to cool a transport refrigerated container. Air cooled by an inclined evaporator is drawn through the evaporator by an evaporator transverse fan and discharged in the refrigerated container. Air drawn through a condenser by a condenser transverse fan approximately 1.2 to 1.5 times the size of the evaporator transverse fan is discharged outside the refrigeration unit. The axes of the pair of heat exchanger fans are substantially parallel to an axis of a motor shaft which drives the fans. A continuous belt passes over pulleys of the fans and motor shaft to drive the fans as the motor operates. A corrugated partition between the evaporator and the condenser insulates the walls of the refrigerated container and the frame of the refrigerated unit.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: April 8, 2003
    Assignee: Carrier Corporation
    Inventor: Yehia Mahmoud Amr
  • Method of assembling a high solidity axial fan
    Patent number: 6508628
    Abstract: The subject invention is a method of fabricating a high solidity axial fan assembly to improve fan stall properties to allow the fan assembly to run at slower speeds. The method includes the steps of providing a first plurality of fan blades attached to a first hub, providing a second plurality of fan blades attached to a second hub, interfitting said second plurality of fan blades between said first plurality of fan blades; and interlocking and securing with fasteners the second hub onto the first hub.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: January 21, 2003
    Assignee: Carrier Corporation
    Inventor: Yehia Mahmoud Amr
  • Method of assembling a high solidity axial fan
    Publication number: 20020114699
    Abstract: The subject invention is a method of fabricating a high solidity axial fan assembly to improve fan stall properties to allow the fan assembly to run at slower speeds. The method includes the steps of providing a first plurality of fan blades attached to a first hub, providing a second plurality of fan blades attached to a second hub, interfitting said second plurality of fan blades between said first plurality of fan blades; and interlocking and securing with fasteners the second hub onto the first hub.
    Type: Application
    Filed: February 20, 2001
    Publication date: August 22, 2002
    Applicant: Carrier Corporation
    Inventor: Yehia Mahmoud Amr
  • Filter apparatus
    Patent number: 5935281
    Abstract: A filter assembly 10 includes a housing 12 defining a filter chamber having a first region forming a contaminated air inlet chamber 30 and a second region forming a clean air outlet chamber 40. A filter element 20 extends within the housing between the inlet chamber 30 and the outlet chamber 40. A flow barrier member 60 protrudes from the housing into a cooperating groove 70 provided in the end face of the filter element 20. The flow barrier forms a labyrinth type seal blocking contaminated air from bypassing the filter element.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: August 10, 1999
    Assignee: Carrier Corporation
    Inventors: Jordan Rotheiser, Kenneth B. Barrett, Yehia Mahmoud Amr