Seal for a joint or juncture – Seal between relatively movable parts – Circumferential contact seal for other than piston
Reexamination Certificate
2007-06-12
2007-06-12
Pickard, Alison K. (Department: 3673)
Seal for a joint or juncture
Seal between relatively movable parts
Circumferential contact seal for other than piston
C277S536000, C277S651000, C277S652000, C428S373000, C428S376000, C428S378000
Reexamination Certificate
active
10460345
ABSTRACT:
Ordered elastomeric composites comprise an ordered arrangement of a number of first elastomeric phases distributed uniformly within a continuous matrix second elastomeric phase. The second phase can be formed from an elastomeric material that is relatively harder than an elastomeric material that is used to form the first phases. Each first phase can be in the form of a core having a defined length and diameter, and the second phase can be formed from a number of shells that each surround a respective core. In a preferred embodiment, the arrangement of cores and shells are aligned coaxially with one another to provide a cellular structure. Ordered elastomeric composites of this invention can be used to form part of or an entire elastomeric seal, e.g., in the form of an annular ring adapted for use in a rotary cone drill bit.
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Denton Robert
Griffo Anthony
Heel Patricia
Keshavan Madapusi K.
Siracki Michael A.
Jeffer Mangels Butler & Marmaro LLP
Pickard Alison K.
Smith International Inc.
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