US3553453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic film loader for x-ray machine
Assignee: Liebel Flarsheim Co LLC
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Filing: 1968-04-16
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Granted: 1971-01-05
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Expires: 1988-04-16
Abstract
Abstract An automatic film loader for a chest X-ray machine is disclosed comprising a film supply magazine, automatic means for taking a film sheet from the supply magazine and moving it into position at the exposure station, and (following exposure) automatic means for moving the exposed film from the exposure station into a film-receiving magazine.
Inventors
- 👤 William J Hogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:06
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/021
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
378 words
An automatic film loader for a chest X-Ray machine comprising: a. a supply magazine adapted to hold a supply of cut film, each film of said supply being vertically disposed on one of its edges; b. an exposure station; c. a receiver magazine for receiving the exposed film; d. said supply magazine including an adjustable first pressure plate for pressing the supply of cut film together; e. film feed means including: 1. friction means for frictionally engaging one of said vertically disposed cut films in said supply magazine and feeding from said magazine; 2. film advance and transport rollers outside said supply magazine and disposed on vertical axes for receiving the cut film fed forwardly thereto by said friction means and for advancing and transporting said film therealong; f. first pusher means for pushing against the trailing vertically disposed edge of the transported cut film for pushing said film into final position at said exposure station; g. a vertically disposed second pressure plate at the exposure station; h. means responsive to said first pusher means having pushed said film into final position at the exposure station for moving said second pressure plate into holding position to hold said film; i. a manually operable switch for initiating the exposure of said film at the exposure station for a selected time period; j. film take-away means; k. means effective automatically at the termination of the timed exposure period for actuating said take-away means for taking the exposed film from the exposure station and moving it toward said receiver magazine; l. said take-away means including: 1. take-away rollers disposed on vertical axes; 2. means for further actuating said first pusher means for pushing against the trailing vertical edge of said exposed film to push said film beyond the exposure station into said take-away rollers; 3. second pusher means beyond the take-away rollers for pushing against the trailing vertical edge of said exposed cut film to push said film into said receiver magazine; m. means for reducing the pressure of said first pressure plate on the supply of edge stacked film during feeding thereof from said magazine; and n. means responsive to termination of said timed exposure period for retracting said second pressure plate from the exposed film at the exposure station.
Claim 2
Dependent Claim
378 words
An automatic film loader for a chest X-Ray machine comprising: a. a supply magazine adapted to hold a supply of cut film, each film of said supply being vertically disposed on one of its edges; b. an exposure station; c. a receiver magazine for receiving the exposed film; d. said supply magazine including an adjustable first pressure plate for pressing the supply of cut film together; e. film feed means including: 1. friction means for frictionally engaging one of said vertically disposed cut films in said supply magazine and feeding from said magazine; 2. film advance and transport rollers outside said supply magazine and disposed on vertical axes for receiving the cut film fed forwardly thereto by said friction means and for advancing and transporting said film therealong; f. first pusher means for pushing against the trailing vertically disposed edge of the transported cut film for pushing said film into final position at said exposure station; g. a vertically disposed second pressure plate at the exposure station; h. means responsive to said first pusher means having pushed said film into final position at the exposure station for moving said second pressure plate into holding position to hold said film; i. a manually operable switch for initiating the exposure of said film at the exposure station for a selected time period; j. film take-away means; k. means effective automatically at the termination of the timed exposure period for actuating said take-away means for taking the exposed film from the exposure station and moving it toward said receiver magazine; l. said take-away means including: 1. take-away rollers disposed on vertical axes; 2. means for further actuating said first pusher means for pushing against the trailing vertical edge of said exposed film to push said film beyond the exposure station into said take-away rollers; 3. second pusher means beyond the take-away rollers for pushing against the trailing vertical edge of said exposed cut film to push said film into said receiver magazine; m. means for reducing the pressure of said first pressure plate on the supply of edge stacked film during feeding thereof from said magazine; and n. means responsive to termination of said timed exposure period for retracting said second pressure plate from the exposed film at the exposure station.
Claim 3
Dependent Claim
168 words
film advance and transport rollers outside said supply magazine and disposed on vertical axes for receiving the cut film fed forwardly thereto by said friction means and for advancing and transporting said film therealong; f. first pusher means for pushing against the trailing vertically disposed edge of the transported cut film for pushing said film into final position at said exposure station; g. a vertically disposed second pressure plate at the exposure station; h. means responsive to said first pusher means having pushed said film into final position at the exposure station for moving said second pressure plate into holding position to hold said film; i. a manually operable switch for initiating the exposure of said film at the exposure station for a selected time period; j. film take-away means; k. means effective automatically at the termination of the timed exposure period for actuating said take-away means for taking the exposed film from the exposure station and moving it toward said receiver magazine; l. said take-away means including:
Claim 4
Dependent Claim
168 words
film advance and transport rollers outside said supply magazine and disposed on vertical axes for receiving the cut film fed forwardly thereto by said friction means and for advancing and transporting said film therealong; f. first pusher means for pushing against the trailing vertically disposed edge of the transported cut film for pushing said film into final position at said exposure station; g. a vertically disposed second pressure plate at the exposure station; h. means responsive to said first pusher means having pushed said film into final position at the exposure station for moving said second pressure plate into holding position to hold said film; i. a manually operable switch for initiating the exposure of said film at the exposure station for a selected time period; j. film take-away means; k. means effective automatically at the termination of the timed exposure period for actuating said take-away means for taking the exposed film from the exposure station and moving it toward said receiver magazine; l. said take-away means including:
Claim 5
Dependent Claim
31 words
means for further actuating said first pusher means for pushing against the trailing vertical edge of said exposed film to push said film beyond the exposure station into said take-away rollers;
Claim 6
Dependent Claim
31 words
means for further actuating said first pusher means for pushing against the trailing vertical edge of said exposed film to push said film beyond the exposure station into said take-away rollers;
Claim 7
Dependent Claim
37 words
Apparatus according to claim 1 characterized by the provision of: a. a manually operable start switch; and b. means responsive to actuation of said start switch for actuating said friction means to feed a cut film forwardly.
Claim 8
Dependent Claim
76 words
second pusher means beyond the take-away rollers for pushing against the trailing vertical edge of said exposed cut film to push said film into said receiver magazine; m. means for reducing the pressure of said first pressure plate on the supply of edge stacked film during feeding thereof from said magazine; and n. means responsive to termination of said timed exposure period for retracting said second pressure plate from the exposed film at the exposure station.
Claim 9
Dependent Claim
76 words
second pusher means beyond the take-away rollers for pushing against the trailing vertical edge of said exposed cut film to push said film into said receiver magazine; m. means for reducing the pressure of said first pressure plate on the supply of edge stacked film during feeding thereof from said magazine; and n. means responsive to termination of said timed exposure period for retracting said second pressure plate from the exposed film at the exposure station.
Claim 10
Dependent Claim
62 words
Apparatus according to claim 2 characterized by the provision of: a. switch means operable by the film being advanced and transported by said advance and transport rollers for actuating said first pusher means to push said film into the exposure station; and b. stop means for preventing the leading edge of said film in said exposure station for entering said take-away rollers.
Claim 11
Dependent Claim
35 words
Apparatus according to claim 3 characterized by the provision of: a. a main drive motor; and b. means responsive to movement of said pressure plate into film-holding position for shutting down said main drive motor.
Claim 12
Dependent Claim
31 words
Apparatus according to claim 4 characterized by the provision of means responsive to termination of said timed exposure period for: a. energizing the main motor; and b. withdrawing the stop means.
Claim 13
Dependent Claim
36 words
Apparatus according to claim 5 characterized by the provision of switch means operable by the film passing through the take-away means for actuating said second pusher means to push said exposed film into said receiver magazine.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |