PAUL L WELLENER III
Engineers in Pittsburgh, PA
License number
Pennsylvania PE013575E
Category
Engineers
Type
Professional Engineer
Address
Address
Pittsburgh, PA 15228
Personal information
See more information about PAUL L WELLENER III at radaris.comName
Address
Phone
1160 Washington Rd, Pittsburgh, PA 15228
2274 Country Club Dr, Pittsburgh, PA 15241
1160 Washington St, Pittsburgh, PA 15228
2274 Country Club Dr, Pittsburgh, PA 15241
8023 Meadowridge Dr, Champion, PA 15622
Professional information
Gas Cylinder Valve With Non-Perforated Diaphragms
US Patent:
5516078, May 14, 1996
Filed:
Aug 16, 1994
Appl. No.:
8/291380
Inventors:
Paul L. Wellener - Pittsburgh PA
Alan F. Dunn - Houston PA
James R. Daniels - McDonald PA
Alan F. Dunn - Houston PA
James R. Daniels - McDonald PA
Assignee:
Amcast Industrial Corporation - Washington PA
International Classification:
F16K 3100
US Classification:
2513352
Abstract:
A gas cylinder valve with minimum wetted area has a one-piece valving assembly comprising a valve member, a non-perforated diaphragm member and a valve stem, the latter including a threaded stud and a stem shaft threaded on to the stud. The threaded stud, diaphragm member and valve member are fused together by a YAG laser weld applied through a central, blind bore in the valve member. Another through weld is applied around the peripheral edge of the threaded stud. A rim on the stem shaft clamps the diaphragm outside the peripheral weld through a pair of washers which absorb the torsional load. A helical compression spring bears on a valve stem shaft shoulder outside the wetted area to bias the valve open. A resilient bushing supported by a metal cup backs up the diaphragm member.