1
Eugen Hohmann, Konrad Mund, Erhard Weidlich: Method and apparatus for cleaning, disinfecting and sterilizing medical instruments. Siemens Aktiengesellschaft, Hill Van Santen Steadman & Simpson, December 1, 1987: US04710233 (66 worldwide citation)

A method and apparatus for cleaning, disinfecting, and sterilizing medical instrument with a sequence of method steps performed in a single apparatus. The method steps include precleaning the instruments in a container containing a first fluid bath subjected to ultrasonic energy, subsequently emptyi ...


2
Eugen Hohmann: Device for sterilizing medical and dental objects. Siemens Aktiengesellschaft, Hill Van Santen Steadman Chiara & Simpson, August 23, 1983: US04400357 (37 worldwide citation)

A device which enables a rapid sterilization of one or more medical and dental objects characterized by a first chamber for containing the objects to be sterilized, a second chamber connected to the first chamber and having a smaller volume than the first chamber for receiving a liquid reaction flui ...


3
Eugen Hohmann: Dental apparatus. Siemens Aktiengesellschaft, Haseltine Lake & Waters, November 2, 1976: US03989952 (28 worldwide citation)

A dental apparatus including a plurality of handpieces, each having associated therewith an electrical appliance such as, for example, a miniature drive motor, a generator for generating HF-oscillations, or an electrical valve for controlling the airflow of a turbine, whose operative condition (rota ...


4
Juergen Wohlgemuth, Eugen Hohmann: Percussion instrument. Siemens Aktiengesellschaft, Hill Van Santen Steadman & Simpson, February 19, 1985: US04499906 (25 worldwide citation)

A percussion instrument suitable for use in dental practice for determining the degree of looseness of teeth has a movably seated ram which is accelerated to a defined velocity by an electromagnetic drive means and is subsequently moved toward a test subject (such as a tooth) in free flight. The ele ...


5
Eugen Hohmann, Wolfgang Behringer, Manfred Preuss: Device for separating solids from liquids in a dental apparatus. Siemens Aktiengesellschaft, Hill Van Santen Steadman & Simpson, January 2, 1990: US04891041 (12 worldwide citation)

A separating device which utilizes a centrifuge which is driven by a motor for processing liquids enriched with solids by forcing the solids out of the liquid against a peripheral centrifuge wall as a consequence of centrifugal force characterized that a collecting vessel is the centrifuged containe ...


6
Eugen Hohmann: Control installation for a dental apparatus. Siemens Aktiengesellschaft, Hill Van Santen Steadman Chiara & Simpson, February 10, 1981: US04250439 (10 worldwide citation)

A control installation for a dental apparatus which has at least one part capable of being moved to a selected position of a plurality of positions characterized by the control installation including a drive motor for moving the part to the selected position, a clock pulse generator coupled to the d ...


7
Monika Paulke, Eugen Hohmann, Bernd Nickel: Electrical pulp testing instrument. Siemens Aktiengesellschaft, Hill Van Santen Steadman Chiara & Simpson, April 15, 1980: US04197641 (6 worldwide citation)

A hand-held instrument is illustrated wherein a counting cycle may be initiated by pressing the active electrode against a tooth to be examined. A digital to analog converter controls a battery operated current source to supply stimulating current pulses whose intensity is linearly increased in step ...


8
Ferdinand Quella, Eugen Hohmann: Method for lubricating bearing and gear surfaces. Siemens Aktiengesellschaft, Hill Van Santen Steadman & Simpson, November 8, 1983: US04414241 (6 worldwide citation)

Long-term lubrication of highly loaded lubricating areas or surfaces, such as in very high speed medical and/or dental equipment, is obtained by applying a synthetic film, for example composed of poly(fluoroacrylic acid methyl ester) onto the sliding/moving surfaces, along with a polar oil having hi ...


9
Werner Schwarz, Eugen Hohmann, Bernd Nickel: Electric fluid heating device. Siemens Aktiengesellschaft, Allison C Collard, August 9, 1977: US04041276 (5 worldwide citation)

An electric fluid heating device for heating comparatively small amounts of a fluid mdium, particularly for dental purposes, is characterized in that an operable controllable semiconductor, such as a transistor, is used as the heating element. The fluid heating device includes a metallic casing prov ...


10
Eugen Hohmann: Dental installation. Siemens Aktiengesellschaft, Hill Gross Simpson Van Santen Steadman Chiara & Simpson, November 30, 1976: US03994069 (5 worldwide citation)

A dental installation for at least one dental handpiece having a compressed air motor drive which is supplied from a compressed air source through a compressed air conduit, and whose rotational speed is variable by means of a control valve controlling the compressed air through the intermediary of a ...