Lapping block for curved surfaces
US4206574A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1978 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Sep 26, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D15/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Apparatus for abrading or polishing a spherical or other curved surface is disclosed. This apparatus includes a support base which is held and manipulated by an operator. A multiplicity of dowels having various lengths are permanently attached perpendicular to a surface of the support base. The length of the dowels is selected such that the unattached ends of the dowels defines a surface which conforms to the curved surface to be abraded or polished. A sheet of material for abrading or polishing the curved surface is stretched over the unattached ends of the dowels such that when in operation the working sheet also conforms to the surface. Pads may be included on the ends of the dowels which support the working sheet to provide resilience.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.