Sybron Corporation

Helmut Pietschmann

Manfred Schmidt

Gerd Hoyer

Emil Hirth

Hermann Leiberich

Herbert Lipp

A dental chair has its backrest connected to the seat by a scissor linkage arrangement which effects the moving together of the contiguous portions of the backrest and seat concurrently with movement of the backrest from an upright to a reclined position.

Dental chair

A dental unit has dental instruments carried by individual nests, the nests being selectively movable from a storage position to a readiness position. Each nest is carried to the readiness position in a controlled manner such that the axis of the instrument becomes horizontal and moves downwardly as the instrument approaches the readiness position.

Delivery system for dental instruments or the like

A dental syringe employs a single thumb or finger operated control member mounted on the syringe for regulating the flow of air or water or spray. The single control moves axially and vertically with respect to the syringe. Axial movement either forward or rearward from a rest position, initiates and controls the quantity of flow of air or water. Vertical movement of the control member initiates the flow of both air and water to produce a spray.

Dental syringe

A foot controller for dental instruments having a pair of foot pedals which are depressed to initiate and control the rate of flow of a utility service, there being a single, variable output generator with the controller which can be operated by either the independent or simultaneous operation of the foot pedals.

Foot controller for dental instruments or the like

In a foot control, two or more pivoted pedals have a common main spring which provides the same resistance to all pedals. A bias arrangement keeps one pedal from falling down if the other pedal is depressed. A bias arrangement may be a horizontal rod associated with each pedal. The rod is spring biased against the pedal at a location below the pivot axis. In a two pedal embodiment both pedals can control a single electrical element. A stud extends from each horizontal rod. The stud normally prevents a spring biased pivoted member from pivoting and actuating the electrical element. When a pedal is depressed, the corresponding rod and stud move to allow the pivoted member to actuate the electric element and a corresponding switch.

Plural pedal foot control

PCT No. PCT/DE78/00027 Sec. 371 Date June 15, 1979 Sec. 102(e) Date June 11, 1979 PCT Filed Oct. 16, 1978 In dental treatment apparatuses with a plurality of instruments which are connected to a supply component across spirally coiled supply lines attached to the apparatus at an upper level, and with a mounting for the instruments disposed at a lower level, it is required that the instruments be able to be removed from and inserted into the mounting comfortably and without mutual disturbance. It is proposed that the supply component is at an upper level, that each supply line has its individual point of attachment to the apparatus in its connection to the supply component and is spirally coiled in its entire length from the supply component at an upper level to the instrument mounted on a lower level, that the coil formed by each supply line from the connection to the supply component to the instrument runs freely suspended in an approximately straight line at a slight angle to the vertical, and that the instruments are suspended, pointing downward, in slots in the instrument mounting by means of molded parts on the end of the supply lines by the instruments or on the instruments themselves.

Dental treatment apparatus

A pneumatic mechanism for dental units wherein a differential pressure applied directly to the utility supply line acts to move the line to a stored position within the unit.

Growing community of inventors

Karlsbad, Germany

Helmut Pietschmann