Stable instrument bench with replicated precision surface
US5014627A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1989 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | Nov 6, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C70/74
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An instrument table having two features is disclosed. The first is a stable instrument bench that is constructed of sections of precast reinforced concrete. Each of these sections are then moisture sealed with a plastic coat or paint, then assembled using epoxy and bolts. The second element of the present invention is the replication of a precision surface on the table portion of an instrument bench. The replication of the precision surface entails the application of a bead of plastic to the selected portions of the instrument table, lowering of a jig having a portion of the underside thereof machined or ground to the selected specifications of the surface to be replicated onto the instrument table thereonto, supporting the jig a selected distance above the surface of the instrument table to push out the plastic into a pad of a thickness that is equivalent to the distance above the table at which the jig is supported, and removing the jig after the plastic is cured thus leaving behind the plastic pad that has thereon a precision surface that replicates the machined or ground surface on the underside of the jig.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.