Patent · US Expired

Apparatus for splicing photographic films or the like

US4080242A · kind A · utility

15Cited by
4References
35Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 16, 1976
Grant dateMar 21, 1978
Priority date
Expiry dateDec 16, 1996

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T156/1335
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Apparatus for splicing successive exposed photographic films end-to-end by means of uniting bands one side of which is coated with hotmelt has a ribbon which is severed at regular intervals at the splicing station to yield a succession of uniting bands. Each band is caused to overlie the ends of films at the splicing station and is thereupon pressed against the films by two heated rams which move toward each other as soon as a fresh band is separated from the ribbon. The ribbon is retracted from the splicing station immediately upon severing to avoid the flow of hotmelt thereon as a result of heating action of the rams.

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