← Back to Patent Explorer
US3782262A Expired / Lapsed US ⏱️ 0.0 years remaining

Motion picture processing and projection system employing multi-purpose cassette

Assignee: Polaroid Corp
•
Filing: 1970-10-23
•
Granted: 1974-01-01
•
Expires: 1990-10-23
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A motion picture system utilizing a cassette having two releasably connected sections. In one section respective ends of a strip of film are permanently attached to reels for reversible transport across a film gate, while the other section contains development fluid. Initially, when the two sections are connected together, the cassette is adapted to be positioned in a camera for exposure purposes. Subsequently, the two sections are separated and mounted independently in a unique projector in which the film is sequentially and simultaneously developed, by passing a loop thereof drawn from the film gate of the first section through the developing fluid contained in the second section, dried and projected through an appropriate optical system. Specially devised features are employed in the projector to release the development fluid from a sealed container into a reservoir section of the developing section of the cassette, to draw the loop of film from the film gate of the first section and insert the loop into the reservoir of development fluid, to dry the developed film and to subsequently retain the development fluid in a safe manner.

Inventors

  • 👤 R Downey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 22:26
CPC Classifications
G; G03; G03D; G03D9/00; G03B; G03B17/00; G03B17/26; G03B17/265

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 104 words
A motion picture film development device comprising: a housing; a container positioned within said housing for initially releasably storing processing fluid for said film; a reservoir section within said housing into which said fluid may flow when released from said container; access means in said housing for introducing a loop of said film in an exposed undeveloped condition into said reservoir section; and an absorption material positioned within said housing which is initially out of contact with said fluid when said reservoir section is filled therewith and which can subsequently be brought into contact with said fluid by reorienting the position of said device.
Claim 2
Dependent Claim 104 words
A motion picture film development device comprising: a housing; a container positioned within said housing for initially releasably storing processing fluid for said film; a reservoir section within said housing into which said fluid may flow when released from said container; access means in said housing for introducing a loop of said film in an exposed undeveloped condition into said reservoir section; and an absorption material positioned within said housing which is initially out of contact with said fluid when said reservoir section is filled therewith and which can subsequently be brought into contact with said fluid by reorienting the position of said device.
Claim 3
Dependent Claim 29 words
The device of claim 1 wherein said absorption material is positioned above the highest level of said fluid in said reservoir section when said film is being introduced thereinto.
Claim 4
Dependent Claim 18 words
The device of claim 1 wherein said container is positioned between said access means and said absorption material.

References Cited (Backward Citations)

US1928235A Cited
US2173528A Cited
US2385681A Cited
US2971445A Cited
US3202072A Cited
US3273485A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-12-31 1977-07-02 1978-01-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-12-31 1981-07-02 1982-01-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-12-31 1985-07-02 1986-01-01 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag