Title: Dummy head for use in teaching dentistry

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Claims: I claim:

1. A dummy head for use in teaching dentistry and comprising;

a skull portion;

a jaw portion;

said skull and jaw portions respectively cooperating to form said dummy head;

upper and lower jaws provided in said jaw portion and arranged to define a mouth aperture;

dentures arranged in each of said upper and lower jaws, respectively;

wherein: said jaw portion containing said dentures is of unitary construction and is releasably connected to said skull portion for detachment therefrom to permit separation of the jaw from the skull portion.

2. A dummy head according to claim 1, wherein the skull portion is mounted in a holder.

3. A dummy head according to claim 1, including a parting line separating said jaw portion from said skull portion, said parting line being located intermediate said upper jaw and said skull portion, and extending generally parallel to said upper jaw.

4. A dummy head according to claim 1, including mutually interengageable latches provided in said skull portion and said jaw portion for connecting the jaw portion releasably to the skull portion.

5. A dummy head according to claim 4, wherein said latches comprise a headed latch pin provided in one of said portions and having a shank and a head at one end of the shank, and a keyhole aperture provided in the other of said portions and comprising a slot and an enlarged opening at one end of said slot, the head of the latch pin being receivable through said opening and the shank of the latch pin being thereafter moveable along said slot in order to latch the jaw portion to the skull portion.

6. A dummy head according to claim 4, including mutually abutting faces provided on said skull portion and said jaw portion, wherein said latches are provided on said faces.

7. A dummy head according to claim 1, including mutually interengageable locking elements provided in said skull portion and said jaw portion, wherein said locking elements comprise a locking pin provided in one of said portions and a detent aperture provided in the other of said portions.

8. A dummy head according to claim 7, wherein said locking pin is actuatable from externally of the head for displacement from a locking position to an unlocking position, including means biasing the locking pin to said locking position.

9. A dummy head according to claim 8, wherein said locking pin is displaceable in a plane parallel to an engagement plane separating the skull portion and the jaw portion.

10. A dummy head according to claim 1, wherein said jaw portion comprises a rigid base, and a pocket of flexible material having an edge secured to said base.

11. A dummy head according to claim 10, wherein said skull portion has an engagement face engaging said rigid base of the jaw portion.

12. A dummy head according to claim 11, wherein said rigid base and said engagement face are relatively displaceable, including a stop on said skull portion for limiting said relative displacement in one direction.

Other info:

Inventors: Engeser, Rudolf (Biberach, DT)

Application Number: 703504
Filing Date: 1976-07-08
Publication_date: 1978-01-10
Assignee: Kaltenbach & Voigt (Biberach an der Riss, DT)
Primary Class(es): 434/264
Other Classes:
US Patent Ref:

2203891

Jun, 1940

Burtenshiw

32/71.

Other Refs:
Primary Examiner: Peshock, Robert
Assistant Examiner:
Attorney: Haseltine, Lake & Waters