Plastic thermal barrier for use in constructing thermally insulated windows, doors and/or frames and the like

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Description

FIG. 1 is a perspective view of a plastic thermal barrier for use in constructing thermally insulated windows, doors, frames and the like shown fragmentarily to indicate indeterminate length;

FIG. 2 is a side view thereof;

FIG. 3 is a sectional view taken along line 3--3 of FIG. 2.

Referenced Cited
U.S. Patent Documents
3099335 July 1963 Sklar
3216538 November 1965 Miller
3282016 November 1966 Dennery
3566561 March 1971 Tozer
3774366 November 1973 Baker
Patent History
Patent number: D242624
Type: Grant
Filed: May 27, 1975
Date of Patent: Dec 7, 1976
Assignee: Capitol Products Corporation (Mechanicsburg, PA)
Inventor: Dietrich F. Schmidt (Carlisle, PA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Larry Jones
Attorney: Donald L. Johnson
Application Number: 5/580,931
Classifications
Current U.S. Class: D25/74
International Classification: D2501;