Distillation: apparatus – Apparatus – Elements
Reexamination Certificate
2005-07-12
2005-07-12
Caldarola, Glenn (Department: 1764)
Distillation: apparatus
Apparatus
Elements
C202S248000, C202S267100, C202S268000, C202S269000, C202S270000
Reexamination Certificate
active
06916406
ABSTRACT:
A coke oven door comprises a generally rectangular outer frame, a generally rectangular inner frame positioned within the outer frame and a seal operably mounted to the inner frame and adapted for effecting sealing against a jamb of a coke oven. The outer frame is adapted for moving the seal toward the jamb and the outer and inner frames are pivotally connected so as to be able to pivot relative to one another about a longitudinal pivot axis.
REFERENCES:
patent: 3629094 (1971-12-01), Silverblatt
patent: 4186055 (1980-01-01), Baird et al.
patent: 4189352 (1980-02-01), Stanke
patent: 4263101 (1981-04-01), Thiersch et al.
patent: 4400240 (1983-08-01), Abendroth
patent: 4770749 (1988-09-01), Schlosser
patent: 5238539 (1993-08-01), Baird
patent: 5443696 (1995-08-01), Baird et al.
patent: 5670025 (1997-09-01), Baird
patent: 5720855 (1998-02-01), Baird
patent: 2156846 (1985-10-01), None
Caldarola Glenn
Saturn Machine & Welding Co. Inc.
Wachtel Alexis
Wood Herron & Evans LLP
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