US4484805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photo splitting device
Assignee: Individual
•
Filing: 1983-06-15
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Granted: 1984-11-27
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Expires: 2003-06-15
Abstract
Abstract A device for mounting over the lens of a camera to enable two exposures to be made on film normally available for a single exposure. The device includes a ring section mountable over the lens which merges with a section having an outer terminal end divided into two angularly disposed planes normal to the horizontal centerline of the device and forming upper and lower flange portions. The outermost apex of the flange portions mounts a light-blocking plate adapted for movement from one side of the angularly disposed planes to the other and plate handles which interlock with the flange portions to retain them in place in one position or another and a sighting line on the upper and lower faces of the device.
Inventors
- 👤 John Gizzio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:10
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52; G03B11/00; G03B11/04; G03B11/045; G03B15/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
156 words
A device adapted to fit over the lens mounting ring of a camera and enable two exposures to be made on film normally available for a single exposure, said device comprising a ring section (12) designed to fit over the lens mounting ring of a camera, said ring section merging with a section (18) having an outer terminal end divided into two angularly disposed planes (20a and 20b) normal to the horizontal centerline of the device forming upper and lower flange portions (22a and 22b), means in the outermost apex of said flange portions for mounting a light-blocking plate adapted to move from one side of said angularly disposed planes to the other, plate handles (30a and 30b) on said plate which interlock with recesses (32a and 32b) on the upper and lower portions of said lower flange portions (22a and 22b) and a sighting line (34a) on the upper and lower faces of the device.
Claim 2
Independent Claim
156 words
A device adapted to fit over the lens mounting ring of a camera and enable two exposures to be made on film normally available for a single exposure, said device comprising a ring section (12) designed to fit over the lens mounting ring of a camera, said ring section merging with a section (18) having an outer terminal end divided into two angularly disposed planes (20a and 20b) normal to the horizontal centerline of the device forming upper and lower flange portions (22a and 22b), means in the outermost apex of said flange portions for mounting a light-blocking plate adapted to move from one side of said angularly disposed planes to the other, plate handles (30a and 30b) on said plate which interlock with recesses (32a and 32b) on the upper and lower portions of said lower flange portions (22a and 22b) and a sighting line (34a) on the upper and lower faces of the device.
Claim 3
Dependent Claim
28 words
The device of claim 1 wherein said ring section is adapted by means of multiple lens mounting ring stops to fit more than a single model of camera.
Claim 4
Independent Claim
186 words
A device adapted to fit over the lens mounting ring of a camera and enable two exposures to be made on film normally available for a single exposure, said device comprising a ring section (12) designed to frictionally fit over the lens mounting ring of a camera, said ring section merging with a generally rectangular section (18) having an outer terminal end divided into two angularly disposed planes (20a and 20b) normal to the horizontal centerline of the device forming upper and lower triangularly-shaped flange portions (22a and 22b) holes 24a and 24b) in the outermost apex of said triangularly-shaped flange portions for mounting a light-blocking plate (26) by means of pins (28) on said plate, plate handles (30a and 30b) on said plate which interlock with recesses (32a and 32b) on the upper and lower angularly displaced planes (20a and 20b) of the upper and lower triangularly-shaped flange portions (22a and 22b) whereby said light blocking plate and said handles fit against said flange portions in a light-tight manner, and a sighting line (34a) integrally molded on the upper and lower faces of the device.
Claim 5
Independent Claim
186 words
A device adapted to fit over the lens mounting ring of a camera and enable two exposures to be made on film normally available for a single exposure, said device comprising a ring section (12) designed to frictionally fit over the lens mounting ring of a camera, said ring section merging with a generally rectangular section (18) having an outer terminal end divided into two angularly disposed planes (20a and 20b) normal to the horizontal centerline of the device forming upper and lower triangularly-shaped flange portions (22a and 22b) holes 24a and 24b) in the outermost apex of said triangularly-shaped flange portions for mounting a light-blocking plate (26) by means of pins (28) on said plate, plate handles (30a and 30b) on said plate which interlock with recesses (32a and 32b) on the upper and lower angularly displaced planes (20a and 20b) of the upper and lower triangularly-shaped flange portions (22a and 22b) whereby said light blocking plate and said handles fit against said flange portions in a light-tight manner, and a sighting line (34a) integrally molded on the upper and lower faces of the device.
Claim 6
Dependent Claim
30 words
The device of claim 3 wherein said ring section contains multiple lens mounting ring stops to make the device adaptable for use on more than a single model of camera.
Claim 7
Dependent Claim
16 words
The device of claim 1 having a divider fin (42) removably mounted on said sighting line.
Claim 8
Dependent Claim
16 words
The device of claim 4 having a divider fin (42) removably mounted on said sighting line.
Claim 9
Dependent Claim
175 words
In combination, a camera having a lens mounting ring extending on the outside of the body of said camera and a device mounted over said lens mounting ring to enable two exposures to be made on film normally available for a single exposure, said device comprising a ring section designed to frictionally fit over said lens mounting ring, said ring section merging with a generally rectangular section having an outer terminal end divided into two angularly disposed planes normal to the horizontal centerline of the device forming upper and lower triangularly-shaped flange portions, means in the outermost apex of said triangularly-shaped flange portions for mounting a light-blocking plate adapted to move from one side of said angularly disposed planes to the other, plate handles on said plate which interlock with recesses on the upper and lower portions of said lower triangularly-shaped flange portions whereby said light-blocking plate and said handles fit against said flange portions in a light-tight manner, and a sighting line (34a) integrally molded on the upper and lower faces of the device.
Claim 10
Dependent Claim
175 words
In combination, a camera having a lens mounting ring extending on the outside of the body of said camera and a device mounted over said lens mounting ring to enable two exposures to be made on film normally available for a single exposure, said device comprising a ring section designed to frictionally fit over said lens mounting ring, said ring section merging with a generally rectangular section having an outer terminal end divided into two angularly disposed planes normal to the horizontal centerline of the device forming upper and lower triangularly-shaped flange portions, means in the outermost apex of said triangularly-shaped flange portions for mounting a light-blocking plate adapted to move from one side of said angularly disposed planes to the other, plate handles on said plate which interlock with recesses on the upper and lower portions of said lower triangularly-shaped flange portions whereby said light-blocking plate and said handles fit against said flange portions in a light-tight manner, and a sighting line (34a) integrally molded on the upper and lower faces of the device.
Claim 11
Dependent Claim
15 words
The combination of claim 7 having a dividing fin removably mounted on said sighting line.
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) | 1987-11-27 | 1988-05-28 | 1988-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-27 | 1992-05-28 | 1992-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-27 | 1996-05-28 | 1996-11-27 | $7700.00 | Window Closed / Lapsed |