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Research Plastics, Inc. Patents |
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Assignee: Research Plastics, Inc.
Address: Windsor, CA
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5749499 |
Caulking tube air escape structure |
May 12, 1998 |
| An improved tube for handling fluent materials such as caulking includes a plurality of ribs that form air escape spaces. The ribs extend inwardly from an inner peripheral wall of the tube for a very small distance. The ribs form an air space between a plunger and the tube allowing air t |
| 5628433 |
Caulking tube air escape structure |
May 13, 1997 |
| An improved tube for handling fluent materials such as caulking includes a plurality of ribs that form air escape spaces. The ribs extend inwardly from an inner peripheral wall of the tube for a very small distance. The ribs form an air space between a plunger and the tube allowing air t |
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