Patent US3760701A successfully refreshed from Google Patents.
US3760701A
Expired / Lapsed
US
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Photographic apparatus with delayed interlock switch
Assignee: Polaroid Corp
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Filing: 1972-08-09
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Granted: 1973-09-25
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Expires: 1992-08-09
Abstract
Abstract Photographic apparatus of a variety suited to accept a film supply in the form of a disposable cassette. Upon insertion of such a cassette within a receiving chamber, a loading access door is closed to secure the cassette within the noted chamber as well as to energize a feature providing for the automatic removal of a dark slide or the like. A multiple cam actuated switch is operated in conjunction with the closure of the access door. This switch not only provides a delayed actuation of the automatic dark slide removal feature, but also serves an interlock function.
Inventors
- 👤 R Paglia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:16
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52; G03B17/02; G03B17/28; G03B17/32; G03B17/34; G03B17/42
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
270 words
Photographic apparatus for use with containers for an assemblage of photographic units arranged for sequential presentation at an exposure opening, comprising: a housing having a receiving chamber configured to receive a said container; a source of electrical energy; exposure means mounted with said housing for controllably exposing photosensitive ones of said photographic units; drive means actuable to engage with and remove the said presented one of said photographic units from said container; control means energizable from said source for selectively actuating said drive means; loading access means movable from an open position, permitting the insertion of a said container within said receiving chamber, to a closed position for securing said container within said chamber; latch means movable from releasing to locking positions in response to said loading access means movement toward said closed position for selectively retaining said loading access means at said closed position; means for biasing said latch means to move toward said locking position; switch means having at least two conductive members movable toward a predetermined point of contact to complete an electrical circuit path of said control means to as to actuate said drive means; first cam means movable in correspondence with said loading access means toward said closed position for moving one said conductive member toward said predetermined point of contact; and second cam means movable in correspondence with said latch means movement for moving the other said conductive member to said point of contact when said latch means is at least closely proximate said locking position, whereby said drive means is automatically actuated only following the closure and latching of said loading access means.
Claim 2
Dependent Claim
270 words
Photographic apparatus for use with containers for an assemblage of photographic units arranged for sequential presentation at an exposure opening, comprising: a housing having a receiving chamber configured to receive a said container; a source of electrical energy; exposure means mounted with said housing for controllably exposing photosensitive ones of said photographic units; drive means actuable to engage with and remove the said presented one of said photographic units from said container; control means energizable from said source for selectively actuating said drive means; loading access means movable from an open position, permitting the insertion of a said container within said receiving chamber, to a closed position for securing said container within said chamber; latch means movable from releasing to locking positions in response to said loading access means movement toward said closed position for selectively retaining said loading access means at said closed position; means for biasing said latch means to move toward said locking position; switch means having at least two conductive members movable toward a predetermined point of contact to complete an electrical circuit path of said control means to as to actuate said drive means; first cam means movable in correspondence with said loading access means toward said closed position for moving one said conductive member toward said predetermined point of contact; and second cam means movable in correspondence with said latch means movement for moving the other said conductive member to said point of contact when said latch means is at least closely proximate said locking position, whereby said drive means is automatically actuated only following the closure and latching of said loading access means.
Claim 3
Dependent Claim
39 words
The photographic apparatus of claim 1 in which said first cam means is configured to position said one conductive member at said predetermined point of contact when said loading access means is at or closely proximate said closed position.
Claim 4
Dependent Claim
50 words
The photographic apparatus of claim 1 in which said second cam means is configured for effecting movement of said other conductive member away from said predetermined point of contact during select portions of said first cam means movement to position said one conductive member at said predetermined point of contact.
Claim 5
Dependent Claim
40 words
The photographic apparatus of claim 1 in which said switch means is coupled intermediate and in energy supplying relationship between said source of electrical energy and said control means, so as to provide an interlock function for said photographic apparatus.
Claim 6
Dependent Claim
77 words
The photographic apparatus of claim 1 in which said second cam means is configured having a dwell/profile portion in juxtaposition with a rapid rise profile portion, said rapid rise portion being configured and arranged for moving said other conductive member toward and away from said predetermined point of contact, and said dwell portion being configured and arranged for retaining said other conductive member at a dwell contact position spaced a predetermined distance from said point of contact.
Claim 7
Dependent Claim
39 words
The photographic apparatus of claim 5 in which said first cam means is configured to position said one conductive member at said predetermined point of contact when said loading access means is at or closely proximate said closed position.
Claim 8
Dependent Claim
88 words
The photographic apparatus of claim 1 in which said second cam means is connected in driven relationship with said latch means and is configured having a dwell profile portion in juxtaposition with a rapid rise profile portion, said rapid rise portion being configured and arranged for moving said other conductive member toward and away from said predetermined point of contact, and said dwell portion being configured and arranged For retaining said other conductive member at a dwell contact position spaced a predetermined distance from said point of contact.
Claim 9
Dependent Claim
54 words
The photographic apparatus of claim 7 in which said loading access means includes latching cam means contactable with said latch means and having a rising profile portion for moving said latch means to said releasing position, and a sudden return portion for effecting said latch means movement under said bias into said locking position.
Claim 10
Dependent Claim
46 words
The photographic apparatus of claim 8 wherein said first cam means is connected to said loading access means and is configured to locate said one conductive member at said predetermined point of contact when said loading access means is at least closely proximate said closed position.
Claim 11
Dependent Claim
54 words
The photographic apparatus of claim 9 wherein said switch means includes: a base mounted upon said housing, said one conductive member being resilient, supported in cantelever fashion therefrom, and configured for contact with said other conductive member at a position thereupon intermediate the position of contact with said first cam means and said base.
Claim 12
Dependent Claim
51 words
The photographic apparatus of claim 8 wherein said second cam means rapid rise profile portion is configured and arranged for moving said other conductive member toward said predetermined point of contact when said latching cam means sudden return portion effects said latch means movement under said bias into said locking position.
Claim 13
Dependent Claim
26 words
The photographic apparatus of claim 11 wherein said second cam means is pivotally mounted upon said housing and coupled in driven relationship with said latch means.
Claim 14
Dependent Claim
196 words
Photographic apparatus of a variety energizable from a source of electrical energy and for use with containers for an assemblage of photographic units arranged for sequential presentation at an exposure opening, comprising: a housing having receiving means configured to receive a said container; exposure means mounted with said housing for controllably exposing photosensitive ones of said photographic units; instrumentality means actuable to carry out select events during an operational cycle of said apparatus; control means energizable from said source for selectively actuating said drive means; loading access means movable from an open position, permitting the insertion of a said container within said receiving means, to a closed position for securing said container within said receiving means; latch means movable from releasing to locking positions in response to said loading access means movement toward said closed position for selectively retaining said loading access means at said closed position; means for biasing said latch means to move toward said locking position; and switch means actuable in response to movement of said loading access means and to movement of said latch means for completing an electrical circuit path of said control means so as to actuate said instrumentality means.
Claim 15
Dependent Claim
196 words
Photographic apparatus of a variety energizable from a source of electrical energy and for use with containers for an assemblage of photographic units arranged for sequential presentation at an exposure opening, comprising: a housing having receiving means configured to receive a said container; exposure means mounted with said housing for controllably exposing photosensitive ones of said photographic units; instrumentality means actuable to carry out select events during an operational cycle of said apparatus; control means energizable from said source for selectively actuating said drive means; loading access means movable from an open position, permitting the insertion of a said container within said receiving means, to a closed position for securing said container within said receiving means; latch means movable from releasing to locking positions in response to said loading access means movement toward said closed position for selectively retaining said loading access means at said closed position; means for biasing said latch means to move toward said locking position; and switch means actuable in response to movement of said loading access means and to movement of said latch means for completing an electrical circuit path of said control means so as to actuate said instrumentality means.
Claim 16
Dependent Claim
31 words
The photographic apparatus of claim 13 wherein said switch means is configured having at least two conductive members movable toward a predetermined point of contact to complete said electrical circuit path.
Claim 17
Dependent Claim
34 words
The photographic apparatus of claim 14 including first cam means movable in correspondence with said loading access means toward said closed position for moving one said conductive member toward said predetermined point of contact.
Claim 18
Dependent Claim
48 words
The photographic apparatus of claim 14 in which said photographic apparatus includes second cam means movable in correspondence with said latch means movement for moving one said conductive member to a predetermined point of contact when said latch means is at least closely proximate to said locking position.
Claim 19
Dependent Claim
88 words
The photographic apparatus of claim 14 including: first cam means movable in correspondence with said loading access means toward said closed position for moving one said conductive member toward said predetermined point of contact; and sEcond cam means movable in correspondence with said latch means movement for moving the other said conductive member to said point of contact when said latch means is at least closely proximate said locking position, whereby said instrumentality means is automatically actuated only following the closure and latching of said loading access means.
Claim 20
Dependent Claim
42 words
The photographic apparatus of claim 17 wherein said instrumentality means includes drive means actuable in response to said switch means completion of said electrical circuit path for energizing with and removing the said presented one of said photographic units from said container.
Claim 21
Dependent Claim
39 words
The photographic apparatus of claim 17 in which said first cam means is configured to position said one conductive member at said predetermined point of contact when said loading access means is at or closely proximate said closed position.
Claim 22
Dependent Claim
50 words
The photographic apparatus of claim 17 in which said second cam means is configured for effecting movement of said other conductive member away from said predetermined point of contact during select portions of said first cam means movement to position said one conductive member at said predetermined point of contact.
Claim 23
Dependent Claim
40 words
The photographic apparatus of claim 17 in which said switch means is coupled intermediate and in energy supplying relationship between said source of electrical energy and said control means, so as to provide an interlock function for said photographic apparatus.
Claim 24
Dependent Claim
78 words
The photographic apparatus of claim 17 in which said second cam means is configured having a dwell profile portion in juxtaposition with a rapid rise profile portion, said rapid rise portion being configured and arranged for moving said other conductive member toward and away from said predetermined point of contact, and said dwell portion being configured and arranged for retaining said other conductive member at a dwell contact position spaced a predetermined distance from said point of contact.
Claim 25
Dependent Claim
39 words
The photographic apparatus of claim 22 in which said first cam means is configured to position said one conductive member at said predetermined point of contact when said loading access means is at or closely proximate said closed position.
Claim 26
Dependent Claim
88 words
The photographic apparatus of claim 17 in which said second cam means is connected in driven relationship with said latch means and is configured having a dwell profile portion in juxtaposition with a rapid rise profile portion, said rapid rise portion being configured and arranged for moving said other conductive member toward and away from said predetermined point of contact, and said dwell portion being configured and arranged for retaining said other conductive member at a dwell contact position spaced a predetermined distance from said point of contact.
Claim 27
Dependent Claim
54 words
The photographic apparatus of claim 24 in which said loading access means includes latching cam means contactable with said latch means and having a rising profile portion for moving said latch means to said releasing position, and a sudden return portion for effecting said latch means movement under said bias into said locking position.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |