Title: Closure members

Abstract: A closure for an opening into a combustion chamber or a distillation chamber which tightly seals said opening. The closure has a central portion with a lip at its periphery having at least one sealing surface thereon. A member adjacent to the opening has a seat portion located out of proximity of said opening which contacts the sealing surface of the lip when the closure is closed. A hinge mechanism mounting the closure adjacent to the opening and permitting removal of the closure from the opening and a locking lever supported adjacent to the opening to force the sealing surface of the lip against the seat portion to seal the opening when the closure is closed. The seal is located out of proximity of a passageway in communication with the opening.

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Inventors: Leumann, Hans E. (Washington, PA, US)

Application Number: 804909
Filing Date: 1977-06-09
Publication_date: 1979-03-20
Assignee: Bloom Engineering Company, Inc. (Pittsburgh, PA)
Primary Class(es): 202/248 16/370, 49/483.1, 110/173R, 202/242, 220/314, 220/849, 292/260
Other Classes:
US Patent Ref:

204576	Jun, 1878	Jamin	202/247.
248631	Oct, 1881	Balmorf	202/247.
309938	Dec, 1884	Farnum	292/260.
725745	Apr, 1903	Moore	202/248.
1109828	Sep, 1914	Goff	220/314.
1956665	May, 1934	Cahall	220/314.
1973461	Sep, 1934	Barringer	49/483.
2154545	Apr, 1939	Thwaits	220/314.
2162446	Jun, 1939	Scott	220/314.
2273186	Feb, 1942	Fischer	220/327.
2442391	Jun, 1948	Wilputte	292/256.
3172825	Mar, 1965	Maloney	202/248.
3352006	Nov, 1967	Satoh et al.	277/236.
3526409	Sep, 1970	Heinlein	277/169.

Other Refs: 1433401268313

Nov, 1966	FR
Aug, 1927	GB

Primary Examiner: Price, William
Assistant Examiner: Shoap, Allan N.
Attorney: Webb, Burden, Robinson & Webb