US3777162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette locking mechanism
Assignee: Machlett Laboratories Inc
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Filing: 1972-05-18
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Granted: 1973-12-04
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Expires: 1992-05-18
Abstract
Abstract A positive functioning lock for retaining a film-bearing cassette in the Bucky tray utilized in X-ray systems, which lock efficiently clamps opposite sides of a cassette of any of the standardized sizes and locks the cassette firmly in position on the tray by means of a pin which engages a specific slot in a locking bar, which slot corresponds to the selected cassette size being used.
Inventors
- 👤 L Peyser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:18
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/025
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
A device for positioning and locking in place on a supporting tray one of a plurality of film-carrying cassettes each of different dimensions in one direction, comprising a pair of clamps carried by said tray and movable in said one direction toward one another into engagement with opposed sides of a cassette having a selected dimension, and locking means for retaining said clamps in clamped position with respect to said cassette, said locking means comprising a plate fixed to said tray adjacent one of said clamps and having therein indexing means corresponding to said several cassette dimensions, a locking member carried by said adjacent clamp and movable independently of clamp movement in a direction transverse to said direction of movement of the clamp, and engagement means on said locking member movable into engagement with said indexing means in response to movement of said locking member in said transverse direction.
Claim 2
Independent Claim
149 words
A device for positioning and locking in place on a supporting tray one of a plurality of film-carrying cassettes each of different dimensions in one direction, comprising a pair of clamps carried by said tray and movable in said one direction toward one another into engagement with opposed sides of a cassette having a selected dimension, and locking means for retaining said clamps in clamped position with respect to said cassette, said locking means comprising a plate fixed to said tray adjacent one of said clamps and having therein indexing means corresponding to said several cassette dimensions, a locking member carried by said adjacent clamp and movable independently of clamp movement in a direction transverse to said direction of movement of the clamp, and engagement means on said locking member movable into engagement with said indexing means in response to movement of said locking member in said transverse direction.
Claim 3
Dependent Claim
53 words
A device as set forth in claim 1 wherein said indexing means comprises a plurality of locking regions corresponding to selected ones of said cassette dimensions, and said engagement means is movable into engagement with a selected one of said locking regions corresponding to the dimension of the selected cassette on the tray.
Claim 4
Dependent Claim
43 words
A device as set forth in claim 2 wherein said locking regions each comprises a recess in an edge of said locking member, and said engagement means comprises a protrusion carried by the locking member, which protrusion is shaped to engage said recesses.
Claim 5
Dependent Claim
177 words
In X-ray apparatus comprising a supporting tray having thereon means for supporting one of a plurality of film-carrying cassettes each of different dimensions in one direction, a device for locking in place on said tray a cassette having a selected one of said dimensions, said device comprising a pair of clamps carried by said tray and movable in said one dIrection toward one another into engagement with opposed sides of said selected cassette, and means for retaining said clamps in locked position with respect to said cassette, said means comprising a plate fixed to said tray adjacent one of said clamps and having in one side a plurality of slots corresponding to said several cassette dimensions, a locking member carried by said adjacent clamp and movable independently of clamp movement in a direction transverse to said direction of movement of the clamp, and engagement means on said locking member movable into engagement with one of said slots corresponding to the selected dimension of the cassette in response to movement of said locking member in said transverse direction.
Claim 6
Dependent Claim
177 words
In X-ray apparatus comprising a supporting tray having thereon means for supporting one of a plurality of film-carrying cassettes each of different dimensions in one direction, a device for locking in place on said tray a cassette having a selected one of said dimensions, said device comprising a pair of clamps carried by said tray and movable in said one dIrection toward one another into engagement with opposed sides of said selected cassette, and means for retaining said clamps in locked position with respect to said cassette, said means comprising a plate fixed to said tray adjacent one of said clamps and having in one side a plurality of slots corresponding to said several cassette dimensions, a locking member carried by said adjacent clamp and movable independently of clamp movement in a direction transverse to said direction of movement of the clamp, and engagement means on said locking member movable into engagement with one of said slots corresponding to the selected dimension of the cassette in response to movement of said locking member in said transverse direction.
Claim 7
Dependent Claim
76 words
A device as set forth in claim 4 wherein said locking member is pivotally connected to said adjacent clamp for movement in a direction generally perpendicular to the direction of movement of the clamp, a shaft is rotatably mounted in said clamp and fixedly carries a rotatable member on one end adjacent said locking member, and a pin on said disc engages a slot in said locking member for moving same upon rotation of the shaft.
References Cited (Backward Citations)
US2668913A
Cited
US3581094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |