U.S. patents available from 1976 to present.
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Class 53/433 - Receptacle forming


Subclass of Class 53 - Package making
Definition: Methods including the step of fabricating a cover into contents-retaining
No. of patents: 206
Last issue date: 02/21/2012


          6  
NumberTitleIssue Date
3958390Packaging
The method of and apparatus for packaging units in flexible sheet material which is heat-sealable at least on one side, in which a web of the material is formed into a tube with an inside-face-to-inside-face longitudinal seam by bringing the side margins ...
05/25/1976
3956867Method of producing a package
In the present method a package is produced by forming a pouch in a first foil thereby stretching the material thus creating latent shrinking forces. The package is sealed using a second flat foil or a foil having a pouch extending to the opposite directi...
05/18/1976
3950919Apparatus and process for vacuum skin packaging
The invention disclosed is directed to a new improved apparatus for vacuum skin packaging an article between two flexible web layers. The apparatus includes two molds, each having an inner wall defining a generally concave open cavity and terminating to a...
04/20/1976
3938659Frangible bonding using blush lacquer and packaging bonded therewith
A frangible bonding system utilizes blush lacquer as the frangible link in a system for bonding a substrate to a surface, such as the surface of a cover layer. The system is particularly adapted for packaging sterilized products. A substrate, such as pape...
02/17/1976
3938298System for inflation and sealing of air cushions
A system providing an improved inflatable cushion of the type comprising two films of a thermoplastic fused together to provide a plurality of inflatable chambers between the films, with each chamber communicating with a central inlet opening through an i...
02/17/1976
3930350Packaging assembly and process
The invention disclosed is directed to a packaging assembly including a body having an open channel for supporting a trough-shaped web having a product disposed therein; a cover cooperable with the body and the web to form a substantially air-tight chambe...
01/06/1976
          6  
 
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