US3926313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular magazine for photographic transparencies
Assignee: Agfa Gevaert AG
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Filing: 1974-04-17
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Granted: 1975-12-16
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Expires: 1994-04-17
Abstract
Abstract A circular tray for slides has two parallel washer-like end walls, radially extending partitions disposed between the end walls, and a cylindrical wall extending inwardly from the inner marginal portion of one end wall to serve as an abutment for slides which are insertable radially inwardly into and removable radially outwardly from compartments between the partitions. The three walls are integral with the partitions, and the length of the radially outermost ends of the compartments equals or slightly exceeds the height of a slide.
Inventors
- 👤 Alfred Winkler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:58
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/02; G03B23/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
142 words
A circular magazine for slides having a predetermined height, comprising an annular top wall; and annular bottom wall coaxial with and axially spaced from said top wall; a plurality of substantially radially extending partitions extending between and being integral with said walls and defining therewith slidereceiving compartments, each of said compartments having an outer open end whose height between said walls equals or slightly exceeds said predetermined height so that the slides are insertable and removable through said outer open ends of the respective compartments, each of said partitions having the shape of an inverted L having one leg extending along said top wall and another leg substantially normal thereto and having an outer edge portion aligned with the outer edge of said bottom wall; and abutment means for limiting the extent of radially inward insertion of slides into the respective compartment.
Claim 2
Dependent Claim
142 words
A circular magazine for slides having a predetermined height, comprising an annular top wall; and annular bottom wall coaxial with and axially spaced from said top wall; a plurality of substantially radially extending partitions extending between and being integral with said walls and defining therewith slidereceiving compartments, each of said compartments having an outer open end whose height between said walls equals or slightly exceeds said predetermined height so that the slides are insertable and removable through said outer open ends of the respective compartments, each of said partitions having the shape of an inverted L having one leg extending along said top wall and another leg substantially normal thereto and having an outer edge portion aligned with the outer edge of said bottom wall; and abutment means for limiting the extent of radially inward insertion of slides into the respective compartment.
Claim 3
Dependent Claim
21 words
A magazine as defined in claim 1, wherein said annular walls have flat internal surfaces which are parallel to each other.
Claim 4
Dependent Claim
29 words
A magazine as defined in claim 1, wherein one of said annular walls comprises means for biasing the slides in said compartments against the other of said end walls.
Claim 5
Dependent Claim
20 words
A magazine as defined in claim 3, wherein said biasing means comprises a discrete spring for each of said compartments.
Claim 6
Dependent Claim
43 words
A magazine as defined in claim 4, wherein said one annular wall has a plurality of apertures, one for each of said springs and each communicating with the respective compartment, said springs having portions extending through said apertures and into the respective compartments.
Claim 7
Dependent Claim
40 words
A magazine as defined in claim 5, wherein each of said springs is a leaf spring and said portions of said springs are of triangular shape and have apices in engagement with the frames of slides in the respective compartments.
Claim 8
Dependent Claim
54 words
A magazine as defined in claim 4, wherein each of said springs is a leaf spring having a first end secured to said one annular wall and a second end, said one annular wall further having stops against which the second ends of said springs abut, at least when the respective compartments are unoccupied.
Claim 9
Dependent Claim
38 words
A magazine as defined in claim 1, wherein each of said partitions has a radially outermost portion provided with a recess, the slides in said compartments having portions extending radially outwardly beyond the recesses of the neighboring partitions.
Claim 10
Dependent Claim
47 words
A magazine as defined in claim 1, wherein said annular bottom wall has an inner diameter smaller than that of said top wall, and wherein said other leg of each of said partitions has an inner edge substantially aligned with the inner edge of said bottom wall.
Claim 11
Dependent Claim
35 words
A magazine as defined in claim 1, wherein said abutment means is constituted by a cylindrical wall coaxial with said annular wall and projecting from said top wall toward, but short of, said bottom wall.
Claim 12
Dependent Claim
24 words
A magazine as defined in claim 10, wherein said cylindrical wall has a height substantially equal to half the distance between said annular walls.
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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |