Camera with film debris catching comb
US6283645A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2000 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Jan 26, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera has a rear backframe (exposure) opening, including a pair of spaced opposite ends across which successive sections of a filmstrip are moved for each section of the filmstrip to be advanced over the backframe opening. A pair of parallel film rails have longitudinal film support surfaces that support each section of the filmstrip over the backframe opening. A pair of parallel film debris catching combs are positioned between the film rails, proximate respective ones of the opposite ends of the backframe opening, and inwardly of the longitudinal film support surfaces to remove any debris from each section of the filmstrip before that section is advanced over the backframe opening. One of the film debris catching combs preferably is positioned inwardly of the film support surfaces farther than the other comb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.