HELMUT J DRAXLER
Engineering in Cincinnati, OH
License number
Massachusetts 22773
Issued Date
Jun 27, 1969
Expiration Date
Jun 30, 2002
Type
Heating and Ventilation Engineer
Address
Address
Cincinnati, OH 45238
Professional information
Expansion Tanks For Pressurized Fluids And Diaphragms Therefor
US Patent:
4315527, Feb 16, 1982
Filed:
Jan 14, 1980
Appl. No.:
6/111551
Inventors:
Leon Donnenberg - Levittown NY
Helmut J. Draxler - Cincinnati OH
Helmut J. Draxler - Cincinnati OH
Assignee:
TMI Sales Corporation - Forest Hills NY
International Classification:
F16L 5504
US Classification:
138 30
Abstract:
The diaphragm of the invention is for expansion tanks comprising a pair of shell halves and is for interposition between such shell halves to seal the joint between the shell halves and to anchor the diaphragm so as to divide the tank into a pair of chambers. The diaphragm includes a central sheet of elastomeric material terminating in a peripheral edge that includes an outer peripherally extending column integral with the central sheet and having a pair of integral flange elements and a central web element extending inwardly therefrom. Each of the flange elements is spaced from the central web element to form an annular slot therewith. The slots are dimensioned so as to releasably and sealingly receive the respective skirts of the shell halves.