US3693529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Developing apparatus
Assignee: Autopan Heimerdinger and Stabler GmbH and Co
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Filing: 1971-09-02
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Granted: 1972-09-26
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Expires: 1991-09-02
Abstract
Abstract An apparatus for processing photographic sheet materials comprising a container for holding a processing liquid, a shaft rotatable in the container and a pair of parallel disklike walls mounted on the shaft which are spaced from each other to permit a plurality of sector-shaped supporting shells to be resiliently clamped between the two walls. These shells when inserted between the two walls extend coaxially to the shaft, and each of these shells is adapted to carry some of the sheet material to be processed which may be connected to these shells anywhere outside of the container.
Inventors
- 👤 Theodor Stabler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:50
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/02; G03D13/04; G03D13/046
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
142 words
An apparatus for processing photographic materials, comprising a container having a cover for opening the same and for filling a processing liquid into said container and for closing said container light-tight, means for draining said container, a shaft rotatably mounted in said container, means for driving said shaft, a pair of substantially parallel walls mounted on said shaft within said container and spaced from each other, a plurality of shell-like supporting members adapted when said cover is opened to be inserted between and removed from said walls so that the opposite ends of said supporting members are connected to said walls, said supporting members when inserted between said walls having a curvature extending substantially coaxially to said shaft, and connecting means for connecting photographic sheet materials to said supporting members so as to extend substantially parallel to and along said supporting members.
Claim 2
Independent Claim
142 words
An apparatus for processing photographic materials, comprising a container having a cover for opening the same and for filling a processing liquid into said container and for closing said container light-tight, means for draining said container, a shaft rotatably mounted in said container, means for driving said shaft, a pair of substantially parallel walls mounted on said shaft within said container and spaced from each other, a plurality of shell-like supporting members adapted when said cover is opened to be inserted between and removed from said walls so that the opposite ends of said supporting members are connected to said walls, said supporting members when inserted between said walls having a curvature extending substantially coaxially to said shaft, and connecting means for connecting photographic sheet materials to said supporting members so as to extend substantially parallel to and along said supporting members.
Claim 3
Dependent Claim
54 words
An apparatus as defined in claim 1, in which the sides of said walls facing each other have projections, and the outer ends of said supporting members have corresponding recesses into which said projections are adapted to engage for maintaining said supporting members in fixed positions in radial and peripheral directions of said walls.
Claim 4
Dependent Claim
77 words
An apparatus as defined in claim 2, in which a plurality of said supporting members when being inserted between said walls are adapted to be combined into sets of several individual supporting members extending parallel to each other in radial directions of said walls, and spacing members on the opposite ends of said supporting members for maintaining said supporting members of each set at substantially uniform radial distances from each other and substantially coaxially to said shaft.
Claim 5
Dependent Claim
89 words
An apparatus as defined in claim 3, in which said projections on said walls are disposed in such positions that the opposite ends of the supporting members of each set will be separated peripherally from the ends of the members of the adjacent sets by gaps to permit the processing liquid to flow in the peripheral direction toward and along both sides of and from said sheet material on each supporting member during the rotation of said shaft together with said walls, said supporting members and said sheet material.
Claim 6
Dependent Claim
44 words
An apparatus as defined in claim 2, further comprising resilient means on the outer ends of said supporting members and adapted to be resiliently compressed by said walls when said supporting members are inserted between said walls for clamping said members against said walls.
Claim 7
Dependent Claim
44 words
An apparatus as defined in claim 1, in which when said supporting members are inserted between said walls, the inwardly facing concave sides of said supporting members have small projections upon which said sheet material is adapted to engage with a substantially point-like contact.
Claim 8
Dependent Claim
68 words
An apparatus as defined in claim 6, in which each of said supporting members has a plurality of bores, said connecting means comprising a plurality of plugs adapted to be tightly inserted into and withdrawn from some of said bores and each having a head adapted to engage over an outer edge portion of said sheet material to hold the same substantially in pointlike engagement with said projections.
Claim 9
Dependent Claim
20 words
An apparatus as defined in claim 1, in which said walls and said supporting members consist of a transparent material.
Claim 10
Dependent Claim
90 words
An apparatus as defined in claim 8, in which at the outer side of at least one of said walls said container contains a transparent substantially vertical partition so as to divide said container into a larger chamber and at least one smaller chamber, said larger chamber containing said walls and adapted to be partly filled with a processing liquid, and light means in said smaller chamber adapted to permit said sheet material on said supporting members to be exposed through said partition to the action of said light means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |