Electrothermally deformable levelling pad
US3936661A · kind A · utility
43Cited by
11References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 1, 1974 |
| Grant date | Feb 3, 1976 |
| Priority date | — |
| Expiry date | Oct 1, 1994 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B2204/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electrothermally deformable levelling pad utilizable in padding, levelling or aligning girders, rails or any other constructional or structural elements. The levelling pad comprises at least one thermoplastic plate member and an electric heater for heating the thermoplastic plate member to soften or melt to cause the overall thickness of the pad to reduce to a value sufficient to bring an article or machine to a predetermined level. The plate member is made of a thermoplastic random-copolymerized polyester which comprises an acid component and a glycol component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.