Patent US3843246A successfully refreshed from Google Patents.
US3843246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage magazine for diapositive slides
Assignee: Braun GmbH
•
Filing: 1973-02-20
•
Granted: 1974-10-22
•
Expires: 1993-02-20
Abstract
Abstract A slide storage magazine for use with a slide projector in which a removable insert is provided to subdivide the original storage slots to enable the alternate storing of thicker or narrower slides using the same basic unit.
Inventors
- 👤 H Johannsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:54
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/02; G03B23/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
176 words
A circular storage magazine for storage of slides and for use with a slide projecting apparatus, comprising a base unit having a plurality of storage slots for storing slides having a predetermined thickness therein, insert means adapted to be inserted into said base unit of said storage magazine for subdividing said slots into a pair of slots for storing slides having a smaller thickness, said insert means for subdividing the storage slots being adapted for removable mounting on said base unit of said storage magazine, said base unit comprising a central recess, said insert means comprising a central hub means and a plurality of radially directed web means connected to said hub means, said hub means adapted to fit into said central recess of said base unit when inserted and, said web means subdividing said storage slots of said base unit into smaller slots, the number of said web means corresponding to the number of slots of said base unit, and securing means for securing said insert means against rotation when inserted into said base unit.
Claim 2
Dependent Claim
176 words
A circular storage magazine for storage of slides and for use with a slide projecting apparatus, comprising a base unit having a plurality of storage slots for storing slides having a predetermined thickness therein, insert means adapted to be inserted into said base unit of said storage magazine for subdividing said slots into a pair of slots for storing slides having a smaller thickness, said insert means for subdividing the storage slots being adapted for removable mounting on said base unit of said storage magazine, said base unit comprising a central recess, said insert means comprising a central hub means and a plurality of radially directed web means connected to said hub means, said hub means adapted to fit into said central recess of said base unit when inserted and, said web means subdividing said storage slots of said base unit into smaller slots, the number of said web means corresponding to the number of slots of said base unit, and securing means for securing said insert means against rotation when inserted into said base unit.
Claim 3
Dependent Claim
39 words
The storage magazine as claimed in claim 1, wherein said securing means comprises stud means on said insert means for cooperating with recess means formed in said base unit when said insert means is inserted into said storage magazine.
Claim 4
Dependent Claim
19 words
The storage magazine as claimed in claim 2, wherein said stud means is formed integrally with said insert means.
Claim 5
Dependent Claim
53 words
The storage magazine as claimed in claim 1, said storage magazine comprising a circular outer wall portion defining said storage slots therein in the radial direction, recess means provided in said wall portion for receiving said web means of said insert means therein when said insert means is inserted into said base unit.
Claim 6
Dependent Claim
50 words
The storage magazine as claimed in claim 4, wherein a plurality of said recesses is provided in said wall portion of said base storage unit on a side thereon facing the open side of said storage slots, each of said web means cooperating with a corresponding one of said recesses.
Claim 7
Dependent Claim
160 words
A circular storage magazine for storage of slides and for use with a slide projecting apparatus, comprising a base unit having a plurality of storage slots for storing slides having a predetermined thickness therein, and insert means adapted to be inserted into said base unit of said storage magazine for subdividing said slots into a pair of slots for storing slides having a smaller thickness, and comprising a central hub means, a plurality of radially directed web means connected to said hub means, said base storage unit provided with a pair of toothed means for the selective engagement by advancing means of the projector apparatus and thereby enabling the advancing of said storage magazine at two different steps, said web means are coupled together by means of a ring for forming with their radial end portions one of said toothed means serving for the advancing of the storage magazine by the advancing mechanism of the projector at a predetermined rate.
Claim 8
Dependent Claim
160 words
A circular storage magazine for storage of slides and for use with a slide projecting apparatus, comprising a base unit having a plurality of storage slots for storing slides having a predetermined thickness therein, and insert means adapted to be inserted into said base unit of said storage magazine for subdividing said slots into a pair of slots for storing slides having a smaller thickness, and comprising a central hub means, a plurality of radially directed web means connected to said hub means, said base storage unit provided with a pair of toothed means for the selective engagement by advancing means of the projector apparatus and thereby enabling the advancing of said storage magazine at two different steps, said web means are coupled together by means of a ring for forming with their radial end portions one of said toothed means serving for the advancing of the storage magazine by the advancing mechanism of the projector at a predetermined rate.
Claim 9
Dependent Claim
38 words
The storage magazine as claimed in claim 6, wherein said web means of said insert means at their radial end portions thereof are formed as switching teeth for enabling engagement with an advancing mechanism of the projection apparatus.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |