Abrasive article
Patent 5389032 Issued on February 14, 1995. Estimated Expiration Date: 
July 19, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 19, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorApplicationNo. 277242 filed on 07/19/1994US Classes:451/359, Rotary disk tool451/461, COMBINED TOOL451/486, Including tools resiliently urged toward work451/523, Manually manipulated451/529SectionalExaminersPrimary: Rose, Robert A.Attorney, Agent or FirmForeign Patent References
International ClassesB24B 023/00B24D 013/14 B24D 011/04 AbstractThe present invention relates to an abrasive article for abrading material from a workpiece. In one embodiment, the abrasive article includes a back-up pad having first and second major surfaces. The first major surface includes a shaft adapted to connect the abrasive article to an abrading apparatus for movement relative thereto. Adjoining the second major surface are first and second resilient support portions, to which are attached first and second abrading members, respectively. When an operator applies a first force to the abrading apparatus, the first abrasive surface contacts and abrades the workpiece. When the operator applies a second force that is greater than the first force, both the first and the second abrasive surfaces contact and abrade the workpiece.Field of SearchPortable abraderRotary disk tool Rotary disk tool COMBINED TOOL Interrupted or composite work face (e.g., cracked, nonplanar, etc.) Sectional Work face variegated or on projecting backing Non-coextensive laminae Combined abrading Manually manipulated By handle Rotatable Rotary disk Actuated by compression of support Including expansible external surface Including tools resiliently urged toward work | |
