Plastic thermal barrier for use in constructing thermally insulated windows, doors, 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
3216538 November 1965 Miller
3267631 August 1966 Hammitt
3282016 November 1966 Dennery
3327438 June 1967 Cooper
3566561 March 1971 Tozer
Patent History
Patent number: D242625
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: 5/580,959
Classifications
Current U.S. Class: D25/75
International Classification: D2501;