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1.发明授权公开(公告)号：US09704660B2
公开(公告)日：2017-07-11
申请号：US14688580
申请日：2015-04-16
Applicant: ABB TECHNOLOGY AG
Inventor： Lothar Wuerfel , Matthias Schmidt , Joachim Bohlaender
Abstract: The disclosure relates to an electrical switching device, which switches stroke-dependently, with extended switching hysteresis, including a switching element with a contact lever, the switching element cooperating with an actuating element movably guided in a holding device. The actuating element has a step-shaped portion for actuating the contact lever of the switching element and the actuating element has an opening in which an engagement element designed as a bolt or a pin engages when a switching action is initiated. The opening provided in the actuating element is formed as an elongated hole, in which the engagement element engages in order to achieve a switching stroke and a defined hysteresis is thus set depending on the design of the elongated hole.
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公开(公告)号：US10088081B2
公开(公告)日：2018-10-02
申请号：US14655742
申请日：2013-11-28
Applicant: ABB TECHNOLOGY AG
Inventor： Matthias Schmidt , Joachim Bohlaender
Abstract: A hydraulic connecting bush for correcting hydraulic lines for hydraulic circuit-breaker drives, having a hollow cylindrical main body with at least two annular grooves, extending circumferentially on the main body outer cylindrical surface and having sealing rings inserted therein, the main body being made of a material having a first elasticity modulus. The bush may be configured for overlapping insertion in hydraulic lines to be connected, in contact with each other at end faces, the hydraulic lines being made of a material having a second elasticity modulus, a gap forming between, the main body and the hydraulic lines, such that if the first elasticity modulus is less than the second elasticity modulus, and an internal pressure is applied, the main body expands more than the hydraulic lines and closes the gap in the region of the sealing rings.
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