Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Chamber enclosing work during bonding and/or assembly
Patent
1996-12-23
1999-07-27
Lorin, Francis J.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Chamber enclosing work during bonding and/or assembly
156556, B29C 4356
Patent
active
059284633
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Heat insulating bodies with evacuated inner chamber are already known. Heat insulating bodies of that kind are described for instance in the laying open to the public inspections and the patent documents as follows DE OS 26 52 295, DE OS 34 14 665, DE PS 36 30 399, DE OS 37 41 239, DE OS 38 43 907, DE OS 39 40 649, DE OS38 28 669, DE OS39 15 170, DE OS 40 19 870 and DE OS 42 14 002. In their basic structure these solutions show on principle the same construction. The insulating layer bases upon the principle that a insulated body or container which has been evacuated shows a filling material of various kind. The filling serves for the stability of the evacuated insulating body. The presented documents differ essentially from the material of the fillings. The form of the evacuated insulating bodies may be of various size and shape.
The tenor of the documents U.S. Pat. No. 4,175,162 and U.S. Pat. No. 4,268,581 is heat impending panels in form of fire insulating glass pane structures and its production. These are distinguished by an built up of layers. In the document U.S. Pat. No. 4,175,162 these structures are brought together in an evacuated chamber and are brought together by means of an additional evacuation during the joining of the individual layers. A multiple chamber system has been proposed whereby in the preliminary chamber these structures are preheated.
The documents DE PS 40 40 144, EP O 380 812 and U.S. Pat. No. 3,996,725 give a description of procedures and arrangements which lead to hermetically packing of substances that are not supposed to contact the atmosphere during the process of filling. The documents DE PS 40 40 144 specify a method of filling powdered material, stored in a collecting tank, in a container e.g. a sac, connected with said container, as well as a device to carry out this method. The tenor of this document is the filling of powdered materials without letting escape pieces of said materials in the environment. At the same time the filled plastic sac is sealed with two opposing welding bars which are heated electrically and moved together mechanically. After having finished the process of filling, the device for filling has to be opened by means of a movable side wall and the filled sac is replaced by an empty one.
A similar process and a similar device are described in the document EP O 380 812. Thereby large packing till 100 1 especially for powdered milk are filled and sealed in a inner part of an evacuation chamber. This solution specifies a discontinuous process of filling and evacuation which becomes continuous by means of several chambers.
The document U.S. Pat. No. 3,996,725 describes a device for filling solid and liquid materials under vacuum in thermoplastic containers. These containers are filled in a evacuating chamber and are sealed owing to heat sealing by means of a heating element. At the end of this process these containers fall out of the evacuation chamber, said chamber is open.
The documents mentioned above give a description of insulating bodies in itself respectively of processes and arrangements for evacuating and filling plastic containers with powdered or free-flowing materials. The size of this container is very limited owing to the use of evacuating chambers. These stated containers are of a capacity till 100 1. As a consequence these arrangements are not suitable for the production of insulating bodies in form of panels or other sizes of larger dimensions. The sealing of the plastic containers is based upon the heat welding of the used plastic, so that materials of different quality may not be used.
The invention mentioned in claim 1 involves the problem of producing heat insulating bodies, by means of a device, of any size and shape with an evacuated inner chamber with at least one filling at a wide variety of points.
The archived advantages of this invention consist in particular in the production of insulating bodies of any size and shape with an evacuated inner chamber. The insulating body should be composed of a
REFERENCES:
patent: 2921422 (1960-01-01), Sprinkle
patent: 3562078 (1971-02-01), Zumstein
patent: 5017252 (1991-05-01), Aldrich et al.
patent: 5139595 (1992-08-01), Taylor
Kasper Horst M.
Lorin Francis J.
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