Abrading – Rigid tool – Rotary disk
Patent
1996-11-25
1998-07-14
Eley, Timothy V.
Abrading
Rigid tool
Rotary disk
451546, 451548, B24B 516
Patent
active
057795290
ABSTRACT:
The present invention defines an optical polishing lap comprising a thermoplastic polymer resin of uniform density, porosity, and texture throughout including the surface of the lap. The optical lap is of unitary construction formed having a solid main body with a generally domed-shaped upper head portion of substantially monolithic form providing an upper curved surface. The optical lap includes a lower flat surface having an attachment means defining an integral base portion extending downward opposite the lower flat surface offset from the main body. The integral base portion defines webbing having a continuous peripheral rail extending around the edge. The peripheral base rail includes parallel side rail means defining a pair of straight outside walls and an angled inside wall sloped inwardly toward the center of the main body and toward one another providing a thicker rail at the intersection of the lower flat surface to provide additional structural strength and dimensional stability to the rails and the main body during use. A pair of reinforcement members composed of metal such as steel, iron, brass, copper, nickel or other material harder and more durable than the dome is integrally formed and embedded within the webbing side rail means normal thereto providing structural support.
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Bizer Industries
Eley Timothy V.
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