Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2005-10-19
2011-10-25
Sells, James (Department: 1745)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S499000, C156S544000, C156S555000, C156S574000, C156S582000
Reexamination Certificate
active
08043451
ABSTRACT:
The invention relates to a wedge-shaped heating element (or heating wedge) for an apparatus for contact welding of plastic films or plastic sheets (2, 3) and to a method for producing it. In order to provide that the heating element (1) is usable for different plastic materials and has high strength, high abrasion resistance, and high temperature and thermal shock resistance to approximately 800° C., as well as corrosion resistance to the chemical factors that occur in welding various polymer materials, the invention proposes that a ceramic material be used as the material for the heating element (1). In order furthermore to provide that the heating element (1) also has a thermal conductivity that is comparable to metals, it has proved especially advantageous if the heating element (1) comprises a composite material, the latter being composed of a ceramic basic material and a heat-conducting material, in particular a metal or metalloid, so that the heating element (1) on the one hand has the mechanical and chemical properties of the ceramic basic material and also approximately the heat-conducting properties of the heat-conducting metal.
REFERENCES:
patent: 2730161 (1956-01-01), Langer
patent: 4591087 (1986-05-01), Frasch
patent: 4894112 (1990-01-01), Lippman
patent: 4923829 (1990-05-01), Yasutomi et al.
patent: 5051148 (1991-09-01), Resch
patent: 5880432 (1999-03-01), Radmacher
patent: 2002/0158060 (2002-10-01), Uchiyama et al.
patent: 0406223 (1991-01-01), None
patent: 1452261 (2004-09-01), None
patent: 1647392 (2006-04-01), None
patent: 817913 (1959-08-01), None
patent: 05278114 (1993-10-01), None
patent: 05278115 (1993-10-01), None
European Search Report dated May 4, 2007 from counterpart European patent application.
Herz Franz-Josef
Werner Jan
Herz GmbH
Klima Timothy J.
Sells James
Shuttleworth & Ingersoll, PLC
LandOfFree
Wedge-shaped heating element and method for producing it does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wedge-shaped heating element and method for producing it, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wedge-shaped heating element and method for producing it will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4280713