Marvin Michael Christensen
Engineering at Mollylea Dr, Baton Rouge, LA
License number
Louisiana PE.0008031
Issued Date
Aug 8, 1961
Expiration Date
Mar 31, 2017
Category
Civil Engineer
Type
Mechanical Engineer
Address
Address
12382 Mollylea Dr, Baton Rouge, LA 70815
Professional information
Method To Fabricate Polymeric Membranes And Diaphragms
US Patent:
4263121, Apr 21, 1981
Filed:
Oct 10, 1979
Appl. No.:
6/083442
Inventors:
Marvin M. Christensen - Baton Rouge LA
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C25B 1308, C25B 900
US Classification:
204296
Abstract:
A method is disclosed to fabricate shaped membranes or diaphragms with substantially leak-free seams suitable for use in electrolytic cells to produce a halogen and an alkali metal hydroxide. A preferred polymeric sheet material is formed into a desired configuration and a fusible substance is placed at or near the edges of the polymeric material prior to applying heat and, optionally, pressure to the fusible substance.
Fusion Processing Of Synthetic Thermoplastic Resinous Materials
US Patent:
4289807, Sep 15, 1981
Filed:
Mar 3, 1980
Appl. No.:
6/126619
Inventors:
Marvin M. Christensen - Baton Rouge LA
Richard E. Zachary - Clinton LA
Andra P. Dupont - Plaquemine LA
Richard E. Zachary - Clinton LA
Andra P. Dupont - Plaquemine LA
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
B05B 100, B05D 102, B05B 124, B05D 112
US Classification:
427195
Abstract:
Apparatus and method for the fusion processing of synthetic thermoplastic resinous materials, utilizing a first high-velocity stream of gas to transport the resinous material through an elongated passageway which directs the stream of gas and transported material onto a workpiece, thereby fusing the resinous material. The elongated passageway is defined by at least one wall having a plurality of foramina or pores through which a second stream of gas is directed to heat the resinous material to a fusion temperature and to provide a slip stream on the inner surface of the wall thereby preventing the resinous material from sticking to the surface. The first stream of gas may be heated to initiate or supplement the heating of the resinous material.