Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Reexamination Certificate
2005-03-22
2005-03-22
Ryan, Patrick (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer or spacer insulating structure
C429S164000, C429S094000, C429S129000, C429S133000, C429S140000, C429S145000, C429S247000
Reexamination Certificate
active
06869725
ABSTRACT:
The center pin20is cylindrical and tube-shaped, and each of the planes formed by the external surface of the center pin20in the vicinity of the edges22aand22bof the slit21is angled toward the inside of the center pin20. The edges22aand22bare therefore arranged to be more inward than the imaginary circumference that complements the gap from the slit21of the center pin20, and consequently, the edges22aand22bhave less possibility of contacting and damaging the spiral-wound electrode assembly10in the event an external force deforms the center pin20.Further, the planes formed by the external surface of the center pin20in the vicinal areas23aand23bof the edges22aand22bare angled so as to form an angle of no greater than 120 degrees.
REFERENCES:
patent: 4-332481 (1992-11-01), None
patent: 8-250155 (1996-09-01), None
patent: 9-270251 (1997-10-01), None
patent: 11-224689 (1999-08-01), None
Iwanaga Masato
Ogi Masanori
Yamashita Syuichi
Yasutake Zensaku
Martin Angela J.
Ryan Patrick
Sanyo Electric Co,. Ltd.
Westerman Hattori Daniels & Adrian LLP
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