Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1991-11-25
1993-09-07
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 58, 366 60, H02K 906, H02K 510
Patent
active
052432440
ABSTRACT:
In the case of a mixer for constructional materials or the like, comprising a driven drum which is rotatably mounted on a yoke pivoting on a frame and is able to be driven by means of a frame-mounted drive device including an air-cooled electric motor which is arranged in an encapsulating means, provided with a switch and plug unit and having an air intake opening and an air outlet opening and which is adapted via a countershaft to drive a drive shaft which is associated with the drum and whose axis of rotation is in alignment with the pivot axis of the yoke, wherein the encapsulating means is constituted by a housing means accommodating the motor and the countershaft transmission, and having an air intake opening in communication with a flow reversing intake duct and whose outlet opening leads into a spent air duct which ends outside the housing means and is designed to prevent access therethrough, simple and low-cost means are utilized to ensure that the mixer has a comparatively high degree of safety and ease of use while nevertheless rendering rational manufacture possible, since in accordance with the invention the encapsulating means is constituted by a housing means accommodating the motor and the countershaft transmission, and having an air intake opening in communication with a flow reversing intake duct and whose outlet opening leads into a spent air duct which ends outside the housing means and is designed to prevent access therethrough.
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Fradl Fredy
Kasberger Peter
Haszko D. R.
Lescha Maschinenfabrik GmbH & Co. KG
Stephan Steven L.
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