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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Hammarstrom; Janet L.
Address:
Auburn, MA
No. of patents:
5
Patents:












Patent Number Title Of Patent Date Issued
6846223 Abrasive wheels with workpiece vision feature January 25, 2005
Abrasive grinding wheels having an irregular (i.e., gapped) perimeter shape and/or holes extending therethrough permit one to view the surface of a workpiece being ground in conventional surface finishing, snagging and/or weld blending operations. The grinding wheels may each include one
5976204 Abrasive articles and method for preparing them November 2, 1999
A continuous method for preparing a granular molding material for abrasive articles has been developed. The method includes the step of continuously blending an abrasive material with a curing agent and measured portions of phenol-novolac resins, at least one of which has a phenol-formal
5611827 Method for preparing mixtures for abrasive articles March 18, 1997
An improved method for preparing a molding material for abrasive articles has been developed. The method includes the step of continuously blending an abrasive material with a curing agent and measured portions of two phenol-novolac resins, one of which has a phenol-formaldehyde molar ra
5221294 Process of producing self-bonded ceramic abrasive wheels June 22, 1993
A grinding tool is described which comprises self-bonded particles of a ceramic abrasive and has a voids volume of from 5 to 65%.
5160509 Self-bonded ceramic abrasive wheels November 3, 1992
A grinding tool is described which comprises self-bonded particles of a ceramic abrasive and has a voids volume of from 5 to 65%.










 
 
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