US4383330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-Ray cassette having quick film release mechanism
Assignee: Agfa Gevaert NV
•
Filing: 1981-09-28
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Granted: 1983-05-10
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Expires: 2001-09-28
Abstract
Abstract An x-ray cassette of the type having a film buckler member is characterized in that the film engaging edge of the buckler member extends substantially perpendicular to the plane of the film. The film engaging surface of the buckler is further provided with upper and lower film catches and a biasing member to retract the buckler member away from the path of the film.
Inventors
- 👤 Charles P. DeFelice
- 👤 Donald F. LeRoux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:38
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
174 words
In an x-ray cassette of the type having a fixed and movable plate; a film sheet receivable between the plates; means for biasing the movable plate toward the fixed plate; bias release means adapted to release the biasing force from the movable plate; a buckler member having an arm, the buckler member also having a film engaging edge and a cam riding surface; an actuating cam assembly operatively associated with the bias release means to engage the cam riding surface to thereby displace the buckler member from a retracted position to a film engaging position to bring the film engaging edge of the buckler into edgewise contact with the film to buckle the same from the plate, characterized in that the film engaging edge of the buckler member extends substantially perpendicular to the plane of the film, the arm is disposed intermediate of the film engaging surface and the cam riding surface, the arm is fabricated of a flexible springy material adapted to bias the buckler head to return it to its retracted position.
Claim 2
Dependent Claim
174 words
In an x-ray cassette of the type having a fixed and movable plate; a film sheet receivable between the plates; means for biasing the movable plate toward the fixed plate; bias release means adapted to release the biasing force from the movable plate; a buckler member having an arm, the buckler member also having a film engaging edge and a cam riding surface; an actuating cam assembly operatively associated with the bias release means to engage the cam riding surface to thereby displace the buckler member from a retracted position to a film engaging position to bring the film engaging edge of the buckler into edgewise contact with the film to buckle the same from the plate, characterized in that the film engaging edge of the buckler member extends substantially perpendicular to the plane of the film, the arm is disposed intermediate of the film engaging surface and the cam riding surface, the arm is fabricated of a flexible springy material adapted to bias the buckler head to return it to its retracted position.
Claim 3
Dependent Claim
44 words
The cassette of claim 1 further characterized in that the film engaging edge of the buckler member is provided with upper and lower film catches, one of which upon displacement of the buckler member engages the edge of the film to buckle the same.
Claim 4
Dependent Claim
49 words
The cassette of claims 1 or 2 further characterized in that the actuating cam assembly includes a flattened dwell portion which when engaged against the cam riding surface maintains the edge of the buckler member against the edge of the film at a predetermined displacement inwardly of the frame.
Claim 5
Dependent Claim
14 words
The cassette of claims 1 or 2 wherein the arm is fabricated of nylon.
Claim 6
Dependent Claim
31 words
The cassette of claim 4 wherein the buckler comprises a head portion having the film engaging edge thereon and an arm, and wherein the arm is integrally formed with the head.
Claim 7
Dependent Claim
17 words
The cassette of claim 5 wherein the arm is fabricated of nylon colored in a nonreflective color.
Claim 8
Dependent Claim
21 words
The cassette of claim 2 wherein the upper and lower film catches each are a protuberance from the film engaging surface.
Claim 9
Dependent Claim
22 words
The cassette of claim 2 wherein the upper and lower film catches each are a notch formed into the film engaging surface.
Claim 10
Dependent Claim
38 words
The cassette of claim 2 wherein one of the upper and lower film catches is a protuberance from the film engaging surface while the other of the film catches is a notch formed into the film engaging surface.
Claim 11
Dependent Claim
21 words
The cassette of claim 4 wherein the upper and lower film catches each are a protuberance from the film engaging surface.
Claim 12
Dependent Claim
22 words
The cassette of claim 4 wherein the upper and lower film catches each are a notch formed into the film engaging surface.
Claim 13
Dependent Claim
38 words
The cassette of claim 4 wherein one of the upper and lower film catches is a protuberance from the film engaging surface while the other of the film catches is a notch formed into the film engaging surface.
References Cited (Backward Citations)
US3511990A
Cited
US3784835A
Cited
USRE28438E
Cited
US3715087A
Cited
US3836783A
Cited
US3870889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-09 | 1986-11-08 | 1987-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-09 | 1990-11-08 | 1991-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-09 | 1994-11-08 | 1995-05-10 | $7700.00 | Window Closed / Lapsed |