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公开(公告)号：DE2433809A1
公开(公告)日：1976-01-29
申请号：DE2433809
申请日：1974-07-13
Applicant: IBM DEUTSCHLAND
Inventor： LUTZ HEINZ , ZIMMERMANN VOLKER , ZUEHLKE RAINER DR
Abstract: 1471272 Electric motors INTERNATIONAL BUSINESS MACHINES CORP 17 June 1975 [13 July 1974] 25692/75 Heading H2A An electric stepping motor comprises a rotor 1 having a conical portion co-operating with complementary stator pole faces, the cone angle being at least 15 degrees. The toothed conical rotor of the inductor type stepping motor shown is magnetized by a coil 7 and interacts with the toothed faces of four stator poles 3. The rotor may be hollow, Fig. 8 (not shown). In a modification, Fig. 9 (not shown), having a permanent magnet rotor comprising two conical portions placed base-to-base, the two conical surfaces are of opposite polarity and interact with respective groups of stator poles. Either the rotor teeth or the stator teeth of the two halves of the motor may be angularly staggered. An inductor type motor may also be designed to have two conical rotor portions.
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Patent Agency Ranking
公开(公告)号：DE4406115C2
公开(公告)日：1997-03-13
申请号：DE4406115
申请日：1994-02-25
Applicant: IBM
Inventor： LUTZ HEINZ , SCHMIDT PETER
Abstract: PCT No. PCT/EP95/00409 Sec. 371 Date Apr. 10, 1998 Sec. 102(e) Date Apr. 10, 1998 PCT Filed Feb. 6, 1994 PCT Pub. No. WO95/23421 PCT Pub. Date Aug. 31, 1995An anti-surveillance device for keyboards, particularly for the keyboards of cash dispensing machines or electronic cash devices, in order to prevent unwanted viewing of the keyboard from the side. The invention comprises at least one anti-surveillance filter (3), preferably exhibiting a lamellar or lamellar-grid structure, where only the lamellae consist of opaque material and where the anti-surveillance filter (3) is disposed above the keyboard (5).
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公开(公告)号：FR2278191A1
公开(公告)日：1976-02-06
申请号：FR7518142
申请日：1975-06-03
Applicant: IBM
Inventor： LUTZ HEINZ , ZIMMERMANN VOLKER , ZUEHLKE RAINER
Abstract: 1471272 Electric motors INTERNATIONAL BUSINESS MACHINES CORP 17 June 1975 [13 July 1974] 25692/75 Heading H2A An electric stepping motor comprises a rotor 1 having a conical portion co-operating with complementary stator pole faces, the cone angle being at least 15 degrees. The toothed conical rotor of the inductor type stepping motor shown is magnetized by a coil 7 and interacts with the toothed faces of four stator poles 3. The rotor may be hollow, Fig. 8 (not shown). In a modification, Fig. 9 (not shown), having a permanent magnet rotor comprising two conical portions placed base-to-base, the two conical surfaces are of opposite polarity and interact with respective groups of stator poles. Either the rotor teeth or the stator teeth of the two halves of the motor may be angularly staggered. An inductor type motor may also be designed to have two conical rotor portions.
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公开(公告)号：DE4406115A1
公开(公告)日：1995-08-31
申请号：DE4406115
申请日：1994-02-25
Applicant: IBM
Inventor： LUTZ HEINZ , SCHMIDT PETER
Abstract: The invention concerns a keypad visual privacy-protection device designed to prevent people other than the user from seeing the keypad from the side and intended particularly for automatic teller machine and electronic cash systems. The device proposed comprises at least a privacy filter (3) which is preferably made up of parallel lamellae or a criss-cross grid of parallel lamellae, only the lamellae consisting of opaque material and the privacy filter (3) being located over the keypad (5).
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公开(公告)号：DE4039396A1
公开(公告)日：1992-06-11
申请号：DE4039396
申请日：1990-12-10
Applicant: IBM
Inventor： REINSCHMIDT JUERGEN , MANNSDOERFER WALTER , LUTZ HEINZ
Abstract: Housing 101 for accommodating cassettes 113 with a frame 114 surrounding a carrier frame 112 which along with slide rail assemblies 109 and 110 is fixed to the upper portion or wall 102 of the housing. This wall is provided with an output opening 103.
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公开(公告)号：DE2241391A1
公开(公告)日：1974-02-28
申请号：DE2241391
申请日：1972-08-23
Applicant: IBM DEUTSCHLAND
Inventor： LENNEMANN ECKHART DR , LUTZ HEINZ , SKUDELNY GISBERT DR
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