Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
233 words
An apparatus, such as an electric razor, with an electrical driving motor of the kind comprising an electromagnetic stator having at least two poles, and an exciter winding on said stator for energizing said poles, and with a switch having two positions for adjusting said exciter winding to take either one of two different mains voltage ranges, wherein said switch includes an actuating member, means pivotally mounting said actuating member on a first one of said stator poles whereby a free portion of said actuating member lies adjacent a second stator pole which, in operation, is of opposite polarity to said first pole, and spring biasing means which normally holds said free portion of said actuating member away from said second pole in a position defining the first position of said switch, wherein said exciter winding is adjusted to take the lower of said voltage ranges, but which spring biasing means being designed to be overcome by the increased magnetic attraction of said second pole on said free portion of said actuating member as soon as, and only for as long as, said exciter winding is connected to an electrical source within the higher of said voltage ranges, whereby said free portion of said actuating member is shifted towards said second pole in a position defining the second position of said switch, thereby adjusting said exciter winding to take said high voltage range.
Claim 2
Independent Claim
233 words
An apparatus, such as an electric razor, with an electrical driving motor of the kind comprising an electromagnetic stator having at least two poles, and an exciter winding on said stator for energizing said poles, and with a switch having two positions for adjusting said exciter winding to take either one of two different mains voltage ranges, wherein said switch includes an actuating member, means pivotally mounting said actuating member on a first one of said stator poles whereby a free portion of said actuating member lies adjacent a second stator pole which, in operation, is of opposite polarity to said first pole, and spring biasing means which normally holds said free portion of said actuating member away from said second pole in a position defining the first position of said switch, wherein said exciter winding is adjusted to take the lower of said voltage ranges, but which spring biasing means being designed to be overcome by the increased magnetic attraction of said second pole on said free portion of said actuating member as soon as, and only for as long as, said exciter winding is connected to an electrical source within the higher of said voltage ranges, whereby said free portion of said actuating member is shifted towards said second pole in a position defining the second position of said switch, thereby adjusting said exciter winding to take said high voltage range.
Claim 3
Dependent Claim
96 words
Apparatus as set forth in claim 1, including a support for said electrical driving motor, and wherein said stator comprises a pack of lamellae, screw means associated with each of said stator poles holding said lamellae together on said support, and first and second extensions on said screw means associated with said first and second poles respectively, said first extension providing means on which said actuating member is pivotally mounted and said second extension forming a mechanical stop for said free portion of said actuating member when said apparatus is connected to said higher voltage range.