Patent · US Expired

Reel for photographing paper or the like

US4002310A · kind A · utility

6Cited by
3References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 22, 1975
Grant dateJan 11, 1977
Priority date
Expiry dateSep 22, 1995

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65H75/14
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A reel for photographic paper has a hollow cylindrical core and two disk-shaped flanges having centrally located extensions received in the respective end portions of the core. The inner side of each flange tapers outwardly in a direction from the periphery of the core toward the periphery of the respective flange. The extensions have ribs which penetrate into the inner surface of the core, and the core is further coupled to each flange by a rubber hose which surrounds the respective extension and is biased against the inner surface of the core by an endless helical spring which surrounds a conical end face of the corresponding extension.

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