Gregory J Duncan MD 1200 Marshall St, Crescent City, CA 95531 7074651126 (phone), 7074650937 (fax)
Education:
Medical School Johns Hopkins University School of Medicine Graduated: 1986
Procedures:
Carpal Tunnel Decompression Hallux Valgus Repair Shoulder Arthroscopy Shoulder Surgery Arthrocentesis Knee Arthroscopy Lower Arm/Elbow/Wrist Fractures and Dislocations Lower Leg/Ankle Fractures and Dislocations Wound Care
Conditions:
Fractures, Dislocations, Derangement, and Sprains Hallux Valgus Internal Derangement of Knee Internal Derangement of Knee Cartilage Internal Derangement of Knee Ligaments
Languages:
English Spanish
Description:
Dr. Duncan graduated from the Johns Hopkins University School of Medicine in 1986. He works in Crescent City, CA and specializes in Orthopaedic Surgery and Hand Surgery. Dr. Duncan is affiliated with Sutter Coast Hospital.
Gregory S Duncan DPM 3526 Jersey Rdg Rd, Davenport, IA 52807 5633553233 (phone), 5633558990 (fax)
Trinity Center For Wound Care 4480 Utica Rdg Rd STE 110, Bettendorf, IA 52722 5637425100 (phone), 5637425105 (fax)
Procedures:
Arthrocentesis Hallux Valgus Repair
Conditions:
Hallux Valgus Plantar Fascitis Tinea Pedis
Languages:
English
Description:
Dr. Duncan works in Davenport, IA and 1 other location and specializes in Podiatric Medicine. Dr. Duncan is affiliated with Genesis Medical Center-Davenport West, UnityPoint Health Trinity Bettendorf and Unitypoint Health Trinity Regional Medical Center.
Gregory S. Duncan - Huntington Beach CA Eric L. Forman - Rancho Cucamonga CA
Assignee:
Wilden Pump & Engineering Co. - Colton CA
International Classification:
F04B 4306
US Classification:
417395
Abstract:
A pump having a center section including an actuator housing and an air valve is arranged with air chambers to either side of the actuator housing. Diaphragms are associated with the air chambers to create enclosed cavities for alternately pressurizing and venting the air chambers. Pumping chambers are positioned outwardly of the diaphragms and assembled with intake and exhaust manifolds and one-way valves to pump materials with operation of the diaphragms. The actuator uses a pilot shifting shaft which is shuttled by movement of the diaphragms. An air valve is controlled by the pilot shifting shaft to control flow to and from the air chambers. Diffusers include outwardly tapered oblong holes with ports from the air valves. An expansion chamber surrounds the diffusers and a exit to a standard muffler provides a smaller cross-sectional area than the diffuser outlet cross-sectional area.