Claims
- 1. A hollow plastic container comprising:
- at least two separately molded adjacent portions formed of thermoplastic material,
- each portion being hollow and having an inner surface, an outer surface and a continuous end surface abutting a corresponding continuous end surface of the adjacent portion,
- said end surface being provided with a key groove extending axially inwardly therefrom continuously therearound;
- the key grooves in said adjacent portions cooperating to provide a jointing groove when said portions are held in assembled relationship;
- said container being provided with a continuous opening extending inwardly from said outer surface of at least one portion and continuously around the periphery thereof and communicating with said jointing groove;
- said opening being narrower in the axial direction than the axial length of said jointing groove;
- and a thermoplastic molding material of substantially the same material as said plastic material filling said jointing groove and said opening, said molding material being bonded to said two adjacent portions to rigidly connect and form a fluid-tight seal between said two adjacent portions.
- 2. A hollow plastic container according to claim 1 wherein the end surface of each of said portions includes a circumferential projection located radially inwardly of its respective key groove and extending axially beyond its respective groove toward the other portion, whereby said projections overlap each other radially inwardly of said jointing groove when said portions are in assembled relationship.
- 3. A hollow plastic container comprising:
- at least two separately molded adjacent portions formed of thermoplastic material,
- each portion being hollow and having an inner surface, an outer surface and a continuous end surface abutting a corresponding continuous end surface of the adjacent portion,
- said end surface being provided with a key groove extending axially inwardly therefrom continuously therearound;
- the end surface of each of said portions including a circumferential projection located radially inwardly of its respective key groove and extending axially beyond its respective groove toward the other portion, whereby said projections overlap each other radially inwardly of said jointing groove when said portions are in assembled relationship;
- the key grooves in said adjacent portions cooperating to provide a jointing groove when said portions are in assembled relationship;
- said container being provided with a continuous opening extending inwardly from said outer surface of at least one portion and continuously around the periphery thereof and communicating with said jointing groove;
- said opening being narrower in the axial direction than the axial length of said jointing groove;
- and a thermoplastic molding material of substantially the same material as said plastic material filling said jointing groove and said opening, said molding material being bonded to said two adjacent portions to rigidly connect and form a fluid-tight seal between said two adjacent portions.
Priority Claims (1)
Number |
Date |
Country |
Kind |
50-55691 |
May 1975 |
JPX |
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REFERENCE TO RELATED CO-PENDING APPLICATION
This is a continuation of U.S. patent application Ser. No. 683,468, filed May 5, 1976, now abandoned.
US Referenced Citations (6)
Non-Patent Literature Citations (1)
Entry |
Polyesters and Their Applications, Bjorksten Research Laboratories, Inc., 1956. |
Continuations (1)
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Number |
Date |
Country |
Parent |
683468 |
May 1976 |
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