Patent US3918075A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3918075A Expired / Lapsed US ⏱️ 0.0 years remaining

Camera and film magazine therefor

Assignee: FIRST FOTO Inc
•
Filing: 1974-04-08
•
Granted: 1975-11-04
•
Expires: 1994-04-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A camera assembly suitable for operation by an operator having minimal photographic skills. The camera assembly includes a compartment for receiving a removable film magazine. A mechanism is provided for selectively exposing the film and includes an actuator which is manually shiftable between a cocked position and a triggering position. The actuator is shifted to a cocked position in response to advancement of the film. A metering mechanism is drivingly connected so as to be driven in response to film advancement. The metering mechanism includes a stop arm automatically shiftable to a safety position in response to predetermined advancement of the film to prevent further film advancement. A manually operable synchronizing cam is provided for affording manual release of the stop arm from its safety position to permit further advancement of the film in the event that the stop arm enters its safety position prematurely. The film magazine includes detachable base and cover elements. The base element has first and second pockets. The first pocket carries a film supply cassette of light-tight construction. The second pocket carries an uncased wind-up spool and is constructed so as to provide a light-tight seal around such wind-up spool. A plurality of ribs press the film against an exposure opening. Spring clips are provided for detachably connecting these.

Inventors

  • 👤 Donald N Horn
  • 👤 Rein S Randmae

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 12:51
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/30; G03B17/305; G03B19/00; G03B19/02; G03B19/04

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 258 words
In a camera assembly suitable for operation by an operator having minimal photographic skills, the camera assembly including a housing to be mounted above an object to be photographed, said housing being arranged to receive a removable film magazine carrying a film supply spool and a film wind-up spool; said camera assembly comprising: lens means mounted on said housing and being aimed downwardly therefrom; a magazine receiving compartment having: aperture means disposed above said lens means, a door selectively openable to expose the interior of said compartment and permit generally horizontal insertion of said film magazine into said compartment; said door including manually operable first drive means rotatably connectible with the wind-up spool of an installed magazine, and spring means for retaining said magazine in proper alignment relative to said aperture means, means for selectively uncovering said lens including: an actuator manually shiftable between a cocked position and a triggering position, and second drive means drivingly connectible to the wind-up spool of the installed magazine for shifting said actuator to a cocked position in response to rotation of said first drive means; metering means drivingly connected so as to be driven in response to advancement of said film; said metering means including stop means automatically shiftable to a safety position in response to predetermined advancement of said film to prevent further film advancement; and manually operable synchronizing means for releasing said stop means from its safety position to permit further advancement of said film in the event of premature movement of said stop means to said safety position.
Claim 2
Dependent Claim 258 words
In a camera assembly suitable for operation by an operator having minimal photographic skills, the camera assembly including a housing to be mounted above an object to be photographed, said housing being arranged to receive a removable film magazine carrying a film supply spool and a film wind-up spool; said camera assembly comprising: lens means mounted on said housing and being aimed downwardly therefrom; a magazine receiving compartment having: aperture means disposed above said lens means, a door selectively openable to expose the interior of said compartment and permit generally horizontal insertion of said film magazine into said compartment; said door including manually operable first drive means rotatably connectible with the wind-up spool of an installed magazine, and spring means for retaining said magazine in proper alignment relative to said aperture means, means for selectively uncovering said lens including: an actuator manually shiftable between a cocked position and a triggering position, and second drive means drivingly connectible to the wind-up spool of the installed magazine for shifting said actuator to a cocked position in response to rotation of said first drive means; metering means drivingly connected so as to be driven in response to advancement of said film; said metering means including stop means automatically shiftable to a safety position in response to predetermined advancement of said film to prevent further film advancement; and manually operable synchronizing means for releasing said stop means from its safety position to permit further advancement of said film in the event of premature movement of said stop means to said safety position.
Claim 3
Dependent Claim 47 words
Apparatus according to claim 1 and further comprising a film magazine including flanges insertable into said compartment aperture means; and said spring means comprising a pair of Spring strips fixed to a stationary wall of said compartment and arranged to bias said flanges into said aperture means.
Claim 4
Dependent Claim 20 words
Apparatus according to claim 1 wherein said first drive means comprises a film advance knob rotatably mounted on said door.
Claim 5
Dependent Claim 71 words
Apparatus according to claim 3 wherein said second drive means comprises shaft means rotatably connectible with sprocket wheel means; pawl means engageable with said sprocket wheel means to allow only one-way rotation of said sprocket wheel means, said sprocket wheel means being drivingly connected to a pair of lugs which are selectively receivable in a channel in said actuator for longitudinally shifting said actuator in response to rotation of said knob.
Claim 6
Dependent Claim 28 words
Apparatus according to claim 4 wherein said lugs are carried by a rotatable clutch wheel that is spring biased into frictional driving engagement with said sprocket wheel means.
Claim 7
Dependent Claim 119 words
Apparatus according to claim 4 wherein said metering means comprises a sprocket wheel rotatably mounted in said compartment and being receivable within drive apertures of said film; said sprocket wheel being rotatably connected to a metering wheel; a stop arm being pivotally mounted and including: a projection arranged to enter a slot in said metering wheel when properly aligned therewith, a foot arranged to engage said sprocket wheel means, and spring means for biasing said stop arm such that when said film is advanced by a predetermined amount to bring said slot into engagement with said projection, said projection is biased into said slot and said foot engages said sprocket wheel means to prevent further advancement of said film.
Claim 8
Dependent Claim 64 words
Apparatus according to claim 6 wherein said stop arm includes a release bar engageable by said actuator when said actuator is in a cocked position so as to keep said projection displaced from said slot; and said synchronizing means comprises a manually rotatable cam engageable with said release bar for affording manual release of said projection from said slot to permit further film advancement.
Claim 9
Dependent Claim 308 words
A film magazine comprising: a base element including: a pair of spaced pockets, a first of said pockets carrying a supply of film housed in a substantially light-tight cassette, and a second of said pockets carrying a wind-up spool, said second pocket having: pairs of spaced wall portions defining recesses at the ends of said second pocket for receiving end flanges of said wind-up spool, spaced side wall portions defining a side recess along an outer side of said second pocket, and a strip of resilient material disposed along an inner side of said second pocket to underlie film extending between said cassette and said wind-up spool; an intermediate film guiding portion located between said pockets, said film guiding portion including: a light access opening surrounded by downwardly projecting flanges, and a secondary opening spaced from said light access opening and operable to receive a portion of a rotatable sprocket wheel of a camera; photographic film extending between said cassette and said wind-up spool, said film including a row of spaced apertures arranged in overlying relationship to said secondary opening; a cover element positionable atop said base element and including end sections arranged to overlie said pockets, and an intermediate section arranged to overlie the film guiding portion of said base element; the end section of said cover element which overlies said second pocket including a lip extending across an outer side of such end section and being received in said side recess of said second pocket; said intermediate section of said cover element including a series of ribs extending downwardly to press against said film, and a transverse wall disposed above said strip of said resilient material to press the film thereagainst; connecting means for releasably attaching said cover element to said base element; and means defining handles for manipulatIng the magazine into and from a camera.
Claim 10
Dependent Claim 308 words
A film magazine comprising: a base element including: a pair of spaced pockets, a first of said pockets carrying a supply of film housed in a substantially light-tight cassette, and a second of said pockets carrying a wind-up spool, said second pocket having: pairs of spaced wall portions defining recesses at the ends of said second pocket for receiving end flanges of said wind-up spool, spaced side wall portions defining a side recess along an outer side of said second pocket, and a strip of resilient material disposed along an inner side of said second pocket to underlie film extending between said cassette and said wind-up spool; an intermediate film guiding portion located between said pockets, said film guiding portion including: a light access opening surrounded by downwardly projecting flanges, and a secondary opening spaced from said light access opening and operable to receive a portion of a rotatable sprocket wheel of a camera; photographic film extending between said cassette and said wind-up spool, said film including a row of spaced apertures arranged in overlying relationship to said secondary opening; a cover element positionable atop said base element and including end sections arranged to overlie said pockets, and an intermediate section arranged to overlie the film guiding portion of said base element; the end section of said cover element which overlies said second pocket including a lip extending across an outer side of such end section and being received in said side recess of said second pocket; said intermediate section of said cover element including a series of ribs extending downwardly to press against said film, and a transverse wall disposed above said strip of said resilient material to press the film thereagainst; connecting means for releasably attaching said cover element to said base element; and means defining handles for manipulatIng the magazine into and from a camera.

References Cited (Backward Citations)

US3460891A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-11-03 1979-05-05 1979-11-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-11-03 1983-05-05 1983-11-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-11-03 1987-05-05 1987-11-04 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag