US3826922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray film cassette holder
Assignee: AMERICAN MEDICAL INT Inc
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Filing: 1973-04-09
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Granted: 1974-07-30
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Expires: 1993-04-09
Abstract
Abstract A holder for X-ray film cassettes which automatically centers the cassette under a predetermined area of an X-ray table irrespective of the size of the cassette. Spring loaded pivoting arms coupled by a linkage accomplish the longitudinal centering and a pair of linearly moving members, also coupled by a linkage and spring loaded, centers the cassette transversely. The cassette holder is installed in a slot in the X-ray table under the Bucky diaphragm and can be adjusted to any desired longitudinal position under the table. Means for ejecting the cassette from the holder is disclosed.
Inventors
- 👤 W Ingles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:26
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/025
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
183 words
An X-ray cassette holder which comprises: a. a chassis having a flat top surface adapted to receive an Xray film cassette; b. a pair of arms pivoted on said chassis; c. a first linkage coupling said arms, said linkage operating to cause the motion of said arms to be equal and opposite; d. a first spring urging said arms toward each other whereby an X-ray film cassette between said arms will be clamped thereby; e. a rear bar, said rear bar being constrained to move linearly normal to the motion of said arms; f. a second spring urging said rear bar toward the front of said chassis; g. means for engaging the front edge of an X-ray cassette in said holder; h. a second linkage connecting said rear bar and said engaging means, said linkage constraining said rear bar and said engaging means to move equally and oppositely; i. manually operated means for causing said engaging means to be retracted below the surface of said chassis; and j. means for ejecting an X-ray cassette from said holder when said engaging means is retracted.
Claim 2
Dependent Claim
183 words
An X-ray cassette holder which comprises: a. a chassis having a flat top surface adapted to receive an Xray film cassette; b. a pair of arms pivoted on said chassis; c. a first linkage coupling said arms, said linkage operating to cause the motion of said arms to be equal and opposite; d. a first spring urging said arms toward each other whereby an X-ray film cassette between said arms will be clamped thereby; e. a rear bar, said rear bar being constrained to move linearly normal to the motion of said arms; f. a second spring urging said rear bar toward the front of said chassis; g. means for engaging the front edge of an X-ray cassette in said holder; h. a second linkage connecting said rear bar and said engaging means, said linkage constraining said rear bar and said engaging means to move equally and oppositely; i. manually operated means for causing said engaging means to be retracted below the surface of said chassis; and j. means for ejecting an X-ray cassette from said holder when said engaging means is retracted.
Claim 3
Dependent Claim
45 words
An X-ray cassette holder as recited in claim 1 and further including an inwardly facing lip on the free end of each of said arms spaced from said chassis, said lips being disposed to retain an X-ray cassette against the top surface of said chassis.
Claim 4
Dependent Claim
58 words
An X-ray cassette holder as recited in claim 1 where said means for ejecting an X-ray cassette comprises: a. an ejector tab extending above the top surface of said chassis for engagement with the rear edge of an X-ray film cassette in said holder; and b. a spring urging said ejector tab toward the front of said holder.
Claim 5
Dependent Claim
74 words
An X-ray cassette holder as recited in claim 3 where the means for causing said engaging means to be retracted comprises a rod extending from front to back of said chassis, said rod being positioned under the top surface of said chassis, said rod being manually movable axially and rotatable about its axis, said front engaging means being fastened to said rod intermediate its ends whereby rotating said rod will retract said engaging means.
Claim 6
Dependent Claim
30 words
An X-ray cassette holder as recited in claim 4 and further including a lip on said rear bar for retaining an X-ray film cassette against the surfacE of said chassis.
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) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |