A tapered magnetorheological (MR) valve includes a first fixed housing that remains in a fixed position along a central axis of the tapered MR valve. A second housing moves linearly along the central axis of the tapered MR valve. The first fixed housing and the second housing together define a first MR fluid chamber and a second MR fluid chamber for containing MR fluid interconnected by an MR fluid channel. The second housing moves linearly between a first position and a second position along the central axis of the tapered MR valve to control flow of the MR fluid through the MR fluid channel.
System And Method For Controlling Linear Movement Using A Tapered Mr Valve
- Dallas TX, US MOHAMED ALI AHMED - Richardson TX, US JUSTIN HUSSEY - Dallas TX, US
International Classification:
E21B 47/16 E21B 34/06
Abstract:
A tapered magnetorheological (MR) valve includes a first fixed housing that remains in a fixed position along a central axis of the tapered MR valve. The first fixed housing defines a first surface of a MR fluid channel that is at an angle with respect to the central axis of the tapered MR valve. A second housing moves linearly along the central axis of the tapered MR valve. The second housing defines a second surface of the MR fluid channel that is at the angle with respect to the central axis of the tapered MR valve. The first fixed housing and the second housing together define a first MR fluid chamber and a second MR fluid chamber interconnected by the MR fluid channel. The second housing moves linearly between a first position and a second position along the central axis of the tapered MR valve. The distance between the first surface of the MR fluid channel and the second surface of the MR fluid channel has a first value at the first position and a second value greater that the first value at the second position.
Rotating Control Device Having Seal Responsive To Outer Diameter Changes
A rotating control device for sealing about a drill string having a change in outer diameter can include a seal which rotates with the drill string, the seal including at least two chambers connected by a passage, and a fluid which flows between the chambers via the passage in response to displacement of the outer diameter change through the seal. A method of sealing can include forming at least two chambers in a resilient material of a seal, displacing the outer diameter change into the seal, thereby transferring fluid from a first chamber to a second chamber, and displacing the outer diameter change out of the seal, thereby transferring the fluid from the first chamber to the second chamber. One of the chambers can increase in volume while the other of the chambers decreases in volume.
Sep 2009 to Sep 2009 Broadcast Engineer"SHOWTIME "
May 2007 to Sep 2009 Technical Operator - NOCAl-Faris Computer
Jun 2004 to Nov 2005 Technical Support
Education:
Ibn Seena High School Dubai Jul 2007 O-Level in Math & PhysicsAjman University of Science & Technology Jun 2004 Bachelor's in Electrical & Communication Engineering
Feb 2014 to 2000 Research AssistantSuperior Asphalt Grand Rapids, MI Jul 2013 to Aug 2013 Traffic ControlStaples Washington, DC Aug 2008 to Oct 2010 Electronic Sales
Education:
Western Michigan University Kalamazoo, MI 2012 to 2015 Bachelor of Science in Civil Engineering
Skills:
Leadership Team Work Oral Presentations Native Arabic Speaker Microsoft Office AutoCAD MatLab C SAP2000 DAQ Mix Design Structural Analysis Fluid Mechanics Mechanics of Material Instrumentation Statistical Analysis
Dr. Ahmed graduated from the Nishtar Med Coll, Bahuddin Zakaria Univ, Multan, Pakistan in 1969. He works in Las Vegas, NV and 1 other location and specializes in Cardiovascular Disease and Interventional Cardiology. Dr. Ahmed is affiliated with Desert Springs Hospital Medical Center, Sunrise Hospital & Medical Center, Valley View Medical Center and Western Arizona Regional Medical Center.
Mohamed S Ahmed MD Phd 2931 Military Rd, Niagara Falls, NY 14304 7162984869 (phone), 8888473060 (fax)
Erie County Medical Center Hematology Oncology 462 Grider St FL 2, Buffalo, NY 14215 7168983948 (phone), 7169616969 (fax)
Education:
Medical School St. George's University School of Medicine, St. George's, Greneda Graduated: 2002
Procedures:
Bone Marrow Biopsy Chemotherapy
Conditions:
Anemia Iron Deficiency Anemia Leukemia Non-Hodgkin's Lymphoma Hemolytic Anemia
Languages:
English Spanish
Description:
Dr. Ahmed graduated from the St. George's University School of Medicine, St. George's, Greneda in 2002. He works in Niagara Falls, NY and 1 other location and specializes in Hematology/Oncology. Dr. Ahmed is affiliated with Erie County Medical Center, Mount Saint Marys Hospital and Niagara Falls Memorial Medical Center.
Northwell Health Physician PartnersNorth Shore University Hospital Neonatology 300 Community Dr, Manhasset, NY 11030 5165624665 (phone)
Education:
Medical School Suez Canal Univ, Fac of Med, Ismailia, Egypt Graduated: 1987
Procedures:
Pulmonary Function Tests
Conditions:
Acute Upper Respiratory Tract Infections Anemia Bacterial Pneumonia Cleft Palate and Cleft Lip Conditions of Pregnancy and Delivery
Languages:
English
Description:
Dr. Ahmed graduated from the Suez Canal Univ, Fac of Med, Ismailia, Egypt in 1987. He works in Manhasset, NY and specializes in Neonatal-Perinatal Medicine. Dr. Ahmed is affiliated with North Shore University Hospital and Steven & Alexandra Cohen Childrens Medical Center Of New York.
Dr. Ahmed graduated from the Univ of Cairo, Fac of Med, Cairo, Egypt (330 02 Prior 1/71) in 1981. He works in Oswego, NY and specializes in Internal Medicine. Dr. Ahmed is affiliated with Oswego Hospital.
Dr. Ahmed graduated from the Univ of Colombo, Fac of Med, Colombo, Sri Lanka in 2002. He works in Danbury, CT and specializes in Internal Medicine. Dr. Ahmed is affiliated with Danbury Hospital.
Dr. Ahmed graduated from the Univ of Cairo, Fac of Med, Cairo, Egypt (330 02 Prior 1/71) in 1992. He works in Baytown, TX and 1 other location and specializes in Psychiatry and Child & Adolescent Psychiatry. Dr. Ahmed is affiliated with Houston Methodist San Jacinto Hospital.
Amna Medical Center 300 E Pulaski Hwy STE 104A, Elkton, MD 21921 4103928182 (phone), 4432453736 (fax)
Education:
Medical School Ain Shams Univ, Fac of Med, Abbasia, Cairo, Egypt (330 04 Pr 1/71) Graduated: 1989
Languages:
English Spanish
Description:
Dr. Ahmed graduated from the Ain Shams Univ, Fac of Med, Abbasia, Cairo, Egypt (330 04 Pr 1/71) in 1989. He works in Elkton, MD and specializes in Anesthesiology and Pain Management.