Threaded heatless concentrator

Info

Patent number: D312691
Type: Grant
Filed: Dec 16, 1987
Date of Patent: Dec 4, 1990
Assignee: Supelco, Inc. (Bellefonte, PA)
Inventor: Paul S. Spock (Spring Mills, PA)
Primary Examiner: A. Hugo Word
Assistant Examiner: Stella M. Reid
Application Number: 7/133,695

Description

Description

FIG. 1 is a front elevational view of a threaded heatless concentrator, showing my new design;

FIG. 2 is a side elevational view thereof, turned 90.degree. with respect to FIG. 1;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a perspective view thereof.