Static structures (e.g. – buildings) – Framing to receive door – doorjamb – or window sash – With one movable door section and at least one fixed section
Patent
1992-11-19
1994-12-13
Friedman, Carl D.
Static structures (e.g., buildings)
Framing to receive door, doorjamb, or window sash
With one movable door section and at least one fixed section
49239, 49368, 49470, 494751, 494891, E06B 520
Patent
active
053719875
ABSTRACT:
An acoustic door system including an improved peripheral seal and a lower adjustable seal. An acoustic door swings on camming hinges which raise the door upon opening. A lower vertically adjustable U bracket has a lower neoprene sealing strip which contacts the threshold of the door frame. The peripheral seal has a portion compressed between the marginal edge of the door and frame and a portion compressed between the door panel and frame, providing acoustical sealing between the frame and two perpendicular surfaces of the door. In another form, an improved astragal gasket is compressed in the central gap between a pair of doors, the gasket also contacting an inner panel of both doors.
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Xerox copies of pages from Krieger Steel Products Co. "Kriegersonic Acoustical Doors" BuyLine 5236.
Xerox copies of pages from Overly Manufacturing Co. "Sound-Retardant Doors and Windows".
Hirsch James A.
Stewart Scott C.
Friedman Carl D.
Security Metal Products Corp.
Wilkens Kevin D.
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