Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Reexamination Certificate
2008-10-20
2011-11-15
Trieu, Theresa (Department: 3748)
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
C418S055100, C418S142000, C277S394000, C277S397000, C277S549000
Reexamination Certificate
active
08057202
ABSTRACT:
A scroll compressor including a non-orbiting and an orbiting scroll member having mating involute wraps extending therefrom. In one exemplary embodiment, at least one of the non-orbiting and orbiting scroll members includes an inner wall forming a groove in an end of the involute wrap and extending substantially entirely along the length thereof. Positioned within the groove is a tip seal having outwardly extending projections configured to engage the inner walls of the involute wrap along at least a portion thereof. In one exemplary embodiment, the tip seal has a length that is less than the length of the groove. As a result, a gap is formed at the innermost portion of the involute wrap between the end of the groove and the end of the tip seal.
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Foreign patent document together with English language abstract.
Office Action dated Sep. 13, 2010 in corresponding Canadian Application No. 2,641,765.
Japanese patent document with English language abstract.
Baker & Daniels LLP
Tecumseh Products Company
Trieu Theresa
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