JEFFREY MARC MATTHEWS
Pilots at Doctor Jack Rd, Conowingo, MD
License number
Maryland A1214140
Issued Date
Jul 2015
Expiration Date
Jul 2016
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
1113 Doctor Jack Rd, Conowingo, MD 21918
Personal information
See more information about JEFFREY MARC MATTHEWS at radaris.comName
Address
Phone
5247 Fleming Mill Rd, Pocomoke City, MD 21851
3327 Ingleside Ave, Baltimore, MD 21215
408 Maple St, Pocomoke City, MD 21851
7736 Lake Shore Dr, Owings, MD 20736
1212 Garst Ct, Hagerstown, MD 21742
Professional information
Quick Disconnect Coupling
US Patent:
H12262, Sep 7, 1993
Filed:
Aug 26, 1992
Appl. No.:
7/935701
Inventors:
Daniel R. VanReenen - Aberdeen MD
Jeffrey M. Matthews - Conowingo MD
Jeffrey M. Matthews - Conowingo MD
Assignee:
The United States of America as represented by the Secretary of the Army - Washington DC
International Classification:
E03B 100
US Classification:
13761404
Abstract:
A quick disconnect coupling device formed from a female coupling portion a male portion for mating therewith. The outside diameter of the male portion is equal to the inside diameter of the female portion from the axial outer end of the male coupling to a point less than the total distance of penetration and a reduced outside diameter axially inward thereof. Each coupling portion has a valve to close the portions when they are disconnected. The coupling portions are configured to have a difference between the inside diameter of the female coupling portion and the reduced diameter of the male coupling. The female coupling portion is free to rotate about a point of maximum penetration by the male coupling portion to permit quick disconnection upon application of force to the outer end of either of the coupling portions. The edge of the male coupling portion may be tapered inwardly to assist in the rotation.