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Class Information
Number: 277/508
Name: Seal for a joint or juncture > Seal between relatively movable parts (i.e., dynamic seal) > Circumferential contact seal for other than piston > Accommodates gyratory or oscillatory motion > Axially spring biased
Description: Accommodates gyratory or oscillatory motion including an elastic contrivance or body to force the seal in a direction along an axis of motion of the relatively movable parts.










Sub-classes under this class:

Class Number Class Name Patents
277/509 Coaxial spring 6


Patents under this class:

Patent Number Title Of Patent Date Issued
8690534 Backup seals in rotary pumps Apr. 8, 2014
7883094 Offset stacked sealing system Feb. 8, 2011
7163206 Fluid seal Jan. 16, 2007
7001159 Motor-driven pump for pool or spa Feb. 21, 2006
6354597 Sealed rotating connection device allowing great motions Mar. 12, 2002
5048847 Stuffing box for sealing large-scale deflection shafts Sep. 17, 1991











 
 
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