Patent · US Expired

Assembly containing a linear focusing means and method of making same

US4928139A · kind A · utility

7Cited by
2References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 21, 1988
Grant dateMay 22, 1990
Priority date
Expiry dateNov 21, 2008

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J2/45
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

A support for a linear source of radiation such as a linear LED array is fixed to a support for a linear light focusing means. A flange having a plurality of apertures which flange is fixed with respect to one of the supports receives a pin in each aperture which pin has a small cross-section compared to its respective aperture. A washer around each pin is fixed by adhesive to the flange and restricts movement of the pin laterally relative to the flange. The opening in the washer permits movement of the pin longitudinally which allows for thermal expansion of one support compared to the other.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.