FR2628169B1 - Dispositif de deplacement d'au moins deux masses suivant une symetrie centrale - Google Patents

Dispositif de deplacement d'au moins deux masses suivant une symetrie centrale

Info

Publication number
FR2628169B1
FR2628169B1 FR8802974A FR8802974A FR2628169B1 FR 2628169 B1 FR2628169 B1 FR 2628169B1 FR 8802974 A FR8802974 A FR 8802974A FR 8802974 A FR8802974 A FR 8802974A FR 2628169 B1 FR2628169 B1 FR 2628169B1
Authority
FR
France
Prior art keywords
moving
central symmetry
masses following
masses
following
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 - Fee Related
Application number
FR8802974A
Other languages
English (en)
Other versions
FR2628169A1 (fr
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.)
MELICIANI YVES
Original Assignee
MELICIANI YVES
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 MELICIANI YVES filed Critical MELICIANI YVES
Priority to FR8802974A priority Critical patent/FR2628169B1/fr
Priority to PCT/FR1989/000080 priority patent/WO1989008211A1/fr
Priority to EP89903497A priority patent/EP0359800A1/fr
Publication of FR2628169A1 publication Critical patent/FR2628169A1/fr
Priority to US07/444,156 priority patent/US5039859A/en
Application granted granted Critical
Publication of FR2628169B1 publication Critical patent/FR2628169B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computerised tomographs
    • A61B6/032—Transmission computed tomography [CT]
    • A61B6/035—Mechanical aspects of CT
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
FR8802974A 1988-03-02 1988-03-02 Dispositif de deplacement d'au moins deux masses suivant une symetrie centrale Expired - Fee Related FR2628169B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8802974A FR2628169B1 (fr) 1988-03-02 1988-03-02 Dispositif de deplacement d'au moins deux masses suivant une symetrie centrale
PCT/FR1989/000080 WO1989008211A1 (fr) 1988-03-02 1989-03-01 Dispositif de deplacement d'au moins deux masses suivant une symetrie centrale
EP89903497A EP0359800A1 (fr) 1988-03-02 1989-03-01 Dispositif de deplacement d'au moins deux masses suivant une symetrie centrale
US07/444,156 US5039859A (en) 1988-03-02 1990-01-02 Device for moving at least two masses with respect to a central axis of symmetry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8802974A FR2628169B1 (fr) 1988-03-02 1988-03-02 Dispositif de deplacement d'au moins deux masses suivant une symetrie centrale

Publications (2)

Publication Number Publication Date
FR2628169A1 FR2628169A1 (fr) 1989-09-08
FR2628169B1 true FR2628169B1 (fr) 1990-07-27

Family

ID=9364043

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8802974A Expired - Fee Related FR2628169B1 (fr) 1988-03-02 1988-03-02 Dispositif de deplacement d'au moins deux masses suivant une symetrie centrale

Country Status (4)

Country Link
US (1) US5039859A (fr)
EP (1) EP0359800A1 (fr)
FR (1) FR2628169B1 (fr)
WO (1) WO1989008211A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5093575A (en) * 1990-11-21 1992-03-03 Picker International, Inc. Dual rotatable head gamma camera
US5569924A (en) * 1994-08-18 1996-10-29 Picker International, Inc. Transformable dual head spect camera system
US5717212A (en) * 1996-04-25 1998-02-10 Picker International, Inc. Three detector head gamma camera system with independently circumferentially positionable detector heads
US5825031A (en) * 1996-10-11 1998-10-20 Board Of Regents The University Of Texas System Tomographic pet camera with adjustable diameter detector ring
SE9902181D0 (sv) 1999-06-10 1999-06-10 Siemens Elema Ab Röntgenundersökningsutrustning

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1284103A (fr) * 1960-01-21 1962-02-09 Chemstrand Corp Dispositif à va-et-vient perfectionné pour des fils
US3870886A (en) * 1971-07-28 1975-03-11 Sie Soc It Elettronica Scanning device for scintigraphy
IT1083835B (it) * 1977-06-15 1985-05-25 Selo Apparechiatura per tomografia a gamma camera
FR2398937A1 (fr) * 1977-07-25 1979-02-23 Lectra Systemes Sa Dispositif d'entrainement et deplacement d'une poutre reposant sur deux rails de guidage et d'un ou plusieurs chariots solidaires de la poutre
US4550623A (en) * 1983-10-24 1985-11-05 Hewlett Packard Company Motorized cable mechanism for positioning tractors in a printer
US4652759A (en) * 1984-07-13 1987-03-24 Siemens Gammasonics, Inc. Counterbalanced radiation detection system
US4651007A (en) * 1984-09-13 1987-03-17 Technicare Corporation Medical diagnostic mechanical positioner
FR2593258A1 (fr) * 1986-01-20 1987-07-24 Legall Paul Dispositif pour operer une translation symetrique de deux pieces mecaniques
US4781067A (en) * 1987-04-30 1988-11-01 Sonoscan, Inc. Balanced scanning mechanism

Also Published As

Publication number Publication date
FR2628169A1 (fr) 1989-09-08
EP0359800A1 (fr) 1990-03-28
WO1989008211A1 (fr) 1989-09-08
US5039859A (en) 1991-08-13

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse