US3771781A - X-ray cassette holder - Google Patents

X-ray cassette holder Download PDF

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Publication number
US3771781A
US3771781A US00202335A US3771781DA US3771781A US 3771781 A US3771781 A US 3771781A US 00202335 A US00202335 A US 00202335A US 3771781D A US3771781D A US 3771781DA US 3771781 A US3771781 A US 3771781A
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US
United States
Prior art keywords
racks
handle
centering
jaws
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00202335A
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English (en)
Inventor
R Lackey
C Henninger
H Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liebel Flarsheim Co LLC
Original Assignee
Sybron Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sybron Corp filed Critical Sybron Corp
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Publication of US3771781A publication Critical patent/US3771781A/en
Assigned to LIEBEL-FLARSHEIM COMPANY reassignment LIEBEL-FLARSHEIM COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SYBRON CORPORATION, A CORP OF NY.
Assigned to GREAT AMERICAN INSURANCE COMPANY, A CORP OF OH reassignment GREAT AMERICAN INSURANCE COMPANY, A CORP OF OH SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LIEBEL-FLARSHEIM COMPANY, A DE CORP
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/04—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
    • G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
    • G03B42/025—Positioning or masking the X-ray film cartridge in the radiographic apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/1967—Rack and pinion

Definitions

  • PATENTEBRUY 13 ms 3.771.781 saw 3 w 4 m GI i vv .2 m mm mm on mm vm mm PATENTEURHV 13 1915 3.7 71. 781
  • This invention relates generally to a support and more particularly to apparatus for supporting an x-ray cassette in an x-ray system.
  • the film, paper, plate or other x-ray sensitive material for medical diagnostic x-rays is customarily mounted in a film holder, called a cassette, which is then mounted on a cassette holder such as a flat tray. This tray is in turn positioned in a Bucky diaphragm or some similar carriage located in a system such as an x-ray table.
  • the trays are usually provided with centering jaws such as those shown in US. Pat. No. 2,097,402- Flarsheim, US. Pat. No. 2,989,634-Ould et al, and U.S. Pat. No. 3,581,094-Peyser et al, which automatically locate the cassette in the desired position.
  • centering jaws such as those shown in US. Pat. No. 2,097,402- Flarsheim, US. Pat. No. 2,989,634-Ould et al, and U.S. Pat. No. 3,581,094-Peyser et al, which automatically locate the cassette in the desired position.
  • Usually at least one of the centering jaws is provided with a lock with which the jaws can be secured in a desired position.
  • the trays are frequently stood on edge, as for example, when they are used in a system for taking chest x-rays of a standing patient.
  • pivoted arm centering mechanisms One drawback of pivoted arm centering mechanisms is that the pivot points must be positioned quite precisely or the jaws will not remain parallel as they move back and forth. This problem has become more critical in recent yearsbecause it has become common practice to provide central openings, such as the ones shown in FIG. 6 of the Ould patent and FIG. 2 and 3 of the lfeyser patent, in the cassette trays sothat photo timing apparatus may be positioned below or behind the cassette tray in order to measure the amount of ta.- diation hitting the film and shut the x-ray tube off automatically. As can be seen from the Ould and Peyser patents, this restricts the placement of the pivoted arms somewhat.
  • Another object is to provide a centering system for an x-ray cassette holder that is easy to assemble and does not require extremely close manufacturing tolereach other and are separated by a pinion gear which is rotatably mounted on the holder between the racks and engages each rack. Similarily, the second pair of racks face each other and are separated by a pinion gear which is rotatably mounted on the holder between these racks and engages each rack.
  • One rack from each pair is connected to one of thecentering jaws while the other rack from each pair is connected to the other centering jaw.
  • the two pairs of racks maintain accurate alignment of the jaws as the jaws move back and forth.
  • the centering mechanism may be assembled easily and does not require observation of extremely close tolerances in the assembly. Preferably means are provided to accommodate for discrepancies or misalignment that arise during the manufacture or assembly of the centering mechanism.
  • a still further object of this invention is to provide improved means for locking the centering jawsin position.
  • This locking means comprises upper and lower clamping members positioned above and below a plate.
  • the lower clamping member has a shaft which extends through a slot in the plate and through the upper clamping member.
  • the shaft is pivotally connected to a handle which is also connected through suitable linking means to one of the centering jaws.
  • Cammeans on the handle are adapted to' press theupper clamping member towards thelower clamping member in order to grip the plate.
  • the handle is connected to the centering jaw through a link pivotally connected to both the handle and the jaw, and the cam means and the variouspivotal connections are arranged. so that the therobjects and advantagies of this invention will be apparent from the following description.
  • FIG. 1 is a plan view of one embodiment of this invention. Y I
  • FIG. 2 is a plan view of the holder shown in FIG. 1 with the top'plate removed to show the means for connecting the two centering jaw together.
  • FIG. 3 is a cross-sectional side view, takenalong lines 3--3 of FIGS.' 2 and 6.
  • FIG. 4 is a sectional side view taken along lines 4 4 of FIG. 2.
  • FIG. 5 is a sectional end view taken along lines 5-5 of FIG. 2.
  • FIG. 6 is an enlarged plan view of one of the center- .ing jaws of the holder shown in the preceding figures, partially broken away to show the means for connecting the locking assembly to the centering jaw'.
  • FIG. 7 is a partially sectioned end view of the locking assembly and centering jaw shown in FIG. 6, showing .the means for connecting the lowerclamping assembly DETAILED DESCRIPTION
  • a cassette tray is provided with a pair of centering jaws 11, 12 adapted to grip a cassette 13 containing a film, paper, plate or similar x-ray sensitive material.
  • the tray is also provided with a central opening 14, shown in dotted lines in FIG. 1,
  • the tray may be used with photo timing equipment to automatically terminate an x-ray exposure.
  • the jaws are mounted for movement along longitudinally extending slots 15, 16 in the top plate 17 of the tray.
  • a lock assembly, referred to generally as 18, attached to the front centering jaw ll provides means for locking the jaws in position and gripping cassette 13 securely.
  • the centering jaws 11 and 12 are connected to blocks 19, 20 that ride in the slots 15, 16 in the top plate.
  • Blocks 19, 20 are welded to two laterally extending crossbars 21, 22 positioned between the top and bottom plates 17, 23 of the tray.
  • Two longitudinally extending racks 24, 25 are attached to the front crossbar 21 and two other longitudinally extending racks 26, 27 are attached to the rear crossbar 22.
  • Rack 26 faces rack 24, i.e. the teeth on rack 26 are on the side closest to rack 24 and the teeth on rack 24 are on the side closest to rack 26, and the two racks are separated by a pinion gear '28 that engages both racks.
  • rack 24 faces rack 24, i.e. the teeth on rack 26 are on the side closest to rack 24 and the teeth on rack 24 are on the side closest to rack 26, and the two racks are separated by a pinion gear '28 that engages both racks.
  • pinion gear 28 is rotatably mounted to the bottom plate 23 by a post 29 and a bracket 30.
  • racks 25 and 27 face each other and are separated by a second pinion gear 31, also rotatably mounted on the bottom plate, which engages these two racks.
  • the centering jaws 11, 12 are connected to each other by the crossbars 21, 22 and by two pairs of racks which are laterally displaced from each other. Since the relative motion between the two jaws depends upon the spacing of the teeth on the racks, which can be controlled quite accurately during the manufacturing process, instead of upon the precise location of one or more'pivot points, it is easier to maintain accurate alignment of the jaws with this system.
  • guide blocks 32, 33, 34 align with the top and bottom plates 17, 23.
  • These guide block define channels within which the racks move longitudinally.
  • the guide blocks are preferably made of a low friction material such as polytetrafluoroethylene.
  • the outer guide blocks 32, 35 are loosely positioned by brackets 38 at each end of the blocks and the position of these guide blocks can be adjusted by placing shims 39 behind the blocks.
  • Similarily the inner guide blocks 33, 34 are loosely positioned by four frame members 40, 41, 42, 43 secured to the bottom plate 23.
  • These frame members also define the central opening 14 which, as was mentioned above, is provided so that the tray maybe used with photo timing equipment. Shims 44 may be placed between frame member and guide block 33 and between frame member 41 and guide block 34 in order to adjust the position of these guide blocks.
  • Shims 44 may be placed between frame member and guide block 33 and between frame member 41 and guide block 34 in order to adjust the position of these guide blocks.
  • FIGS. 3 and 4 Another feature which makes it easy to assemble this system and helps compensate-for manufacturing discrepancies is the use of dovetail joints connecting the racks to the crossbars.
  • one end 45 of each rack is bent upwardly and inwardly and a block 46 with a slanted end 47 is welded to the rack.
  • the up-turned end 45 of the rack and the slanted end 47 of block 46 define a trapezoidal slot at one end of each rack.
  • the ends 49 of crossbars 21, 22 are machined so that these ends have trapezoidal crosssections.
  • the trapezoidal ends of the crossbars are inserted in the trapezoidal slots at the ends of the racks.
  • the ends of the racks which are connected to the crossbars are bent to provide offset portions 50 which raise the crossbars slightly above the rest of the racks.
  • the other end 51 of each rack is tapered. The tapered ends and offsets help to insure that the inner racks 26, 27 will slip smoothly under the front crossbar 21 as they move back and forth in the limited space between the two plates 17, 23.
  • the racks are positioned by a number of bearing members having enlarged lower pads 52, which hold the racks above the bottom plate 23, and posts 53 which extend through the racks and through annular upper bearing members 54.
  • the upper bearing members hold theracks below the top plate and also hold the free ends 51 of the inner racks 26, 27 below the front crossbar 21.
  • Bearing members having similar enlarged pads 55,.but with shorter posts 56 which just extend through the racks are provided at the ends 51 of the inner racks 26, 27 which slip under the front crossbar 21.
  • bearing members 57 keep the crossbars from rubbing against the top plate.
  • bearing members 58, 59 which appear in FIGS. 3, 6 and 7, keep the centering jaws from rubbing against the top plate.
  • the locking assembly 18 When the cassette is in position and the centering jaws have been moved into place, the locking assembly 18 is utilized to grip the cassette securely.
  • the locking assembly includes an upper clamping member positioned above the top plate 17 and over the slot 15 along which the front centering jaw 11 moves. This member cooperates with a lower clamping member that has an enlarged end 66 positioned below the top plate and a central shaft 67 extending through the slot in the top plate and through the upper clamping member 65.
  • Shaft 67 is pivotally connected to a handle 68 by a pin 69 extending through a U-shaped adjusting block 70.
  • the adjusting block is positioned between the top 71 of the handle 68 and two L-shaped members 72, 73 that depend from the top 71 of the handle.
  • Cam surfaces 74 are provided on the bottom of the L- shaped members 72, 73.
  • these cam surfaces press the upper clamping member 65 towards the enlarged end 66 of the lower clamping member, whereby the top plate 17 is gripped between the two clamping'members.
  • springs 75 which extend from two generally cylindrical recesses in the upper clamping member into' two similar recesses in the enlarged end of the lower clamping member force the two clamping members apart and help prevent accidental binding of the lock assembly.
  • Handle 68 is connected to the front centering jaw 11 by a linking member 78, one end of which is connected to the handle by a pivot pin 79 and the other end of which is connected to a pair of brackets 80 on the front centering jaw by another pivot pin 81.
  • the various pivotal connections and the cam surfaces 74 on the handle are arranged so that the cam surfaces press the clamping members into grippingengagement with the top plate before the three pivot pins are coplanar, i.e. before the axes of the three pins lie in the same plane.
  • the linking member continues to press the centering jaw forward after the clamping members have gripped the plate and thereby increases the force which the jaws exert on the cassette.
  • part of this forward motion of the centering jaws is absorbed by one or more deformable elements such elastomeric pads 82 on the centering jaws. These pads also help to insure a secure grip on the cassette.
  • the shaft 67 of the lower clamping member is connected to the handle 68 of the locking assembly through a U-shaped adjusting block 70 positioned between the top 71 of the-handle and-two depending L-shaped members 72,73.
  • block 70 can be used to adjust the distance between the pivot pin 69 which connects the handle to the lower clamping member and the cam surfaces 74 on the L-shaped members.
  • a raised strip 85 is provided along the upper front edge of the adjusting block and the adjusting block may be pivoted about this strip by two adjusting screws 86 which extend through the adjusting block into recesses 87 in the L- shaped members. Screws 86' and recesses 87 also serve to hold the adjusting block between the top of the handle and the L-shaped members.
  • Screws 86 are adjusted through two holes 88 in the top of the handle. By adjusting these screws, the gap between the end of the adjusting block through which the pivot 69 passes and the L-shaped members on the handle may be opened or closed, thereby increasing or decreasing the distance between the pivot pin 69 and cam surfaces 74. In this manner the vforce with which the clamping members grip the top plate can be adjusted. If desired, the gripping force can be set so that, if the centering jaws 11, 12 are exerting the desired amount of force on the cassette while the handle is still partially open, the clamping members will slip along the top plate to adsorb the rest of the movement of the linking member 78.
  • two ears 89 extend upwardly from the rear of the front centering jaw and the handle strikes these ears when thelocking assembly is opened. This prevents the handle from being opened to the point where it would dig into the'top plate 17 and also helps to keep the clamping members from binding when the centering jaw is moved away from thecassette.
  • the front centering jaw is also provided with hand grips 90, 91, mounted on either side of the handle of the locking assembly, which facilitate handling of the tray. They provide hand holds which enable the operator to hold the tray and operate the locking assembly with one hand while he handles the cassette with another. These feature is particularly desirable when the holder is used in a vertical position, as would be the case in a system for taking chest x-rays of a standing patient.
  • this invention provides an improved means for centering and securing an x-ray cassette in a holder.
  • the tray described above is but one example of many cassette holders. inwhich this invention maybe utilized.
  • the foregoing description is merely illustrative and is not intended to limited the scope of this invention, which is defined by the appended claims. r
  • the means for connecting the racks to the jaws comprises a first crossbar attached to one of the centering jaws and a second crossbar attached to the other centering jaw, said racks being connected to the ends of said crossbars by dovetail joints, whereby the racks can move laterally along said crossbars to compensate for misalignment of the racks.
  • An x-ray cassette tray comprising:
  • a top plate having a first longitudinally extending slot in one end of the plate and a second longitudinally extending slot in the other end of the plate;
  • first and second centering jaws positioned above said plate and secured respectively through said first and second slots to first and second laterally extending crossbars, said crossbars being positioned between said top plate and a bottom plate extending generally parallel to said top plate;
  • first and second longitudinally extending racks attached to said first crossbar and laterally displaced from each other;
  • a tray according to claim 3 further comprising guide blocks positioned between said top and said bottom plates and defining channels within which said racks move longitudinally, said guide blocks being loosely positioned between said plates so that shims may be placed behindthe blocks to adjust the amount of play between the racks and the pinion gears.
  • a lower clamping member having an enlarged end positioned below the plate and a shaft extending through the slot and through the upper clamping member
  • a handle pivotally connected to the shaft and cam means on the handle adapted to press the upper clamping member towards the lower clamping member, whereby the plate is gripped between the two clamping members;
  • linking means connecting said handle to one of said centering jaws.
  • the means for linking the handle to the centering jaw comprises a member having one end pivotally connected to the jaw and the other end pivotally connected to the handle;
  • the cam means on the handle is adapted to press said clamping members into gripping engagement with said plate before the pivotal connection between the handle and the linking member is coplanar with the pivotal connection between the handle and the shaft of the lower gripping member and the pivotal connection between the linking member and the centering jaw, whereby the centering jaw is moved forward after the clamping members grip the plate.
  • the improved locking means according to claim 7 further comprising a deformable element adapted to absorb at least part of the forward movement of the centering jaw.
  • the improved locking means according to claim 6 further comprising means for adjusting the distance between the cam means on the handle and the pivotal connection between the handle and the shaft on the lower gripping member.
  • said handle comprise a top member and a pair of L-shaped members depending from the top member;
  • the means for adjusting the distance between the cam means and the pivotal connection comprises: i. an adjusting block positioned between said top member and said L-shaped members, said pivotal connection to the shaft of the lower gripping member being made through said adjusting block; and ii. adjusting screws extending through said adjusting block and bearing upon said L-shaped members.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiography Using Non-Light Waves (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
US00202335A 1971-11-26 1971-11-26 X-ray cassette holder Expired - Lifetime US3771781A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20233571A 1971-11-26 1971-11-26

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US3771781A true US3771781A (en) 1973-11-13

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Application Number Title Priority Date Filing Date
US00202335A Expired - Lifetime US3771781A (en) 1971-11-26 1971-11-26 X-ray cassette holder

Country Status (7)

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US (1) US3771781A (de)
JP (1) JPS5330314B2 (de)
DE (1) DE2257779B2 (de)
ES (1) ES408953A1 (de)
FR (1) FR2163091A5 (de)
IT (1) IT966464B (de)
NL (1) NL157433B (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954016A (en) * 1974-11-27 1976-05-04 General Motors Corporation Door lock actuator
US3968375A (en) * 1974-12-13 1976-07-06 The Machlett Laboratories, Incorporated X-ray cassette holder
US4041786A (en) * 1975-12-30 1977-08-16 Hermann Freidrich Offterdinger Linear motion devices
US4162407A (en) * 1977-10-25 1979-07-24 Map International Tray for x-ray film cassettes
US4300053A (en) * 1979-10-15 1981-11-10 Guynes William L Rotatable mount for film cassette
EP0068201A1 (de) * 1981-06-22 1983-01-05 Siemens Aktiengesellschaft Röntgenuntersuchungsgerät
EP0068212A1 (de) * 1981-06-25 1983-01-05 Siemens Aktiengesellschaft Kassettenhalter für ein Röntgenuntersuchungsgerät
US4408126A (en) * 1980-04-07 1983-10-04 Toshiba Machine Co., Ltd. Cassette retaining device of electron beam apparatus
US4644985A (en) * 1984-11-02 1987-02-24 L. A. Weaver Co., Inc. Template and workpiece holder
US4665574A (en) * 1985-09-27 1987-05-19 Filips Chester P Mattress
US4722476A (en) * 1985-09-09 1988-02-02 Kabushiki Kaisha Shinsei Apparatus for axially aligning a vehicle
US4727563A (en) * 1984-09-12 1988-02-23 Maurice Di Tuoro Combined cassette carrier and decontamination apparatus
US5062130A (en) * 1990-11-26 1991-10-29 Liebel-Flarsheim Company X-ray film cassette transport
US20040096040A1 (en) * 2002-09-30 2004-05-20 Kerrhawe Sa Holder for digital sensors for dentistry
US20060193442A1 (en) * 2005-02-28 2006-08-31 Antony Quarry Dental sensor clamp
US20130025393A1 (en) * 2011-07-26 2013-01-31 Hyundai Mobis Co., Ltd. Double rack gear structure for supporting pop-up monitor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2417891B2 (de) * 1974-04-11 1976-03-11 Siemens AG, 1000 Berlin und 8000 München Roentgenuntersuchungsgeraet
DE19523170A1 (de) * 1995-06-26 1997-01-02 Siemens Ag Filmkassettenlade für Röntgenfilme

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1150153A (en) * 1908-11-06 1915-08-17 Joseph B Strauss Counterbalancing device.
US2097402A (en) * 1933-12-06 1937-10-26 Liebel Flarsheim Co Clamp
US2528909A (en) * 1946-07-11 1950-11-07 Edwin W Plumb Work holder
US2631483A (en) * 1952-06-26 1953-03-17 William W Swain Quick action vise
US2676659A (en) * 1949-12-30 1954-04-27 Gen Binding Corp Centering guide mechanism
US2693635A (en) * 1951-10-19 1954-11-09 Fred A Chapman Worktable
US3449008A (en) * 1967-06-08 1969-06-10 Gen Dynamics Corp Object handling system with remote manual control

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1150153A (en) * 1908-11-06 1915-08-17 Joseph B Strauss Counterbalancing device.
US2097402A (en) * 1933-12-06 1937-10-26 Liebel Flarsheim Co Clamp
US2528909A (en) * 1946-07-11 1950-11-07 Edwin W Plumb Work holder
US2676659A (en) * 1949-12-30 1954-04-27 Gen Binding Corp Centering guide mechanism
US2693635A (en) * 1951-10-19 1954-11-09 Fred A Chapman Worktable
US2631483A (en) * 1952-06-26 1953-03-17 William W Swain Quick action vise
US3449008A (en) * 1967-06-08 1969-06-10 Gen Dynamics Corp Object handling system with remote manual control

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954016A (en) * 1974-11-27 1976-05-04 General Motors Corporation Door lock actuator
US3968375A (en) * 1974-12-13 1976-07-06 The Machlett Laboratories, Incorporated X-ray cassette holder
US4041786A (en) * 1975-12-30 1977-08-16 Hermann Freidrich Offterdinger Linear motion devices
US4162407A (en) * 1977-10-25 1979-07-24 Map International Tray for x-ray film cassettes
US4300053A (en) * 1979-10-15 1981-11-10 Guynes William L Rotatable mount for film cassette
US4408126A (en) * 1980-04-07 1983-10-04 Toshiba Machine Co., Ltd. Cassette retaining device of electron beam apparatus
EP0068201A1 (de) * 1981-06-22 1983-01-05 Siemens Aktiengesellschaft Röntgenuntersuchungsgerät
EP0068212A1 (de) * 1981-06-25 1983-01-05 Siemens Aktiengesellschaft Kassettenhalter für ein Röntgenuntersuchungsgerät
US4455672A (en) * 1981-06-25 1984-06-19 Siemens Aktiengesellschaft Cassette holder for an x-ray examination apparatus
US4727563A (en) * 1984-09-12 1988-02-23 Maurice Di Tuoro Combined cassette carrier and decontamination apparatus
US4644985A (en) * 1984-11-02 1987-02-24 L. A. Weaver Co., Inc. Template and workpiece holder
US4722476A (en) * 1985-09-09 1988-02-02 Kabushiki Kaisha Shinsei Apparatus for axially aligning a vehicle
US4665574A (en) * 1985-09-27 1987-05-19 Filips Chester P Mattress
US5062130A (en) * 1990-11-26 1991-10-29 Liebel-Flarsheim Company X-ray film cassette transport
US20040096040A1 (en) * 2002-09-30 2004-05-20 Kerrhawe Sa Holder for digital sensors for dentistry
US6905244B2 (en) * 2002-09-30 2005-06-14 Kerrhawe Sa Holder for digital sensors for dentistry
US20060193442A1 (en) * 2005-02-28 2006-08-31 Antony Quarry Dental sensor clamp
US7195395B2 (en) 2005-02-28 2007-03-27 Kerrhawe Sa Dental sensor clamp
US20130025393A1 (en) * 2011-07-26 2013-01-31 Hyundai Mobis Co., Ltd. Double rack gear structure for supporting pop-up monitor
US8967011B2 (en) * 2011-07-26 2015-03-03 Hyundai Mobis Co., Ltd. Double rack gear structure for supporting pop-up monitor

Also Published As

Publication number Publication date
NL157433B (nl) 1978-07-17
NL7214173A (de) 1973-05-29
IT966464B (it) 1974-02-11
DE2257779A1 (de) 1973-05-30
JPS4864895A (de) 1973-09-07
FR2163091A5 (de) 1973-07-20
ES408953A1 (es) 1975-10-01
DE2257779B2 (de) 1976-03-04
JPS5330314B2 (de) 1978-08-25

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