The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 23, 2012
Filed:
Jul. 31, 2007
Detlef Lauk, Renchen, DE;
Norbert Wegner, Buehl, DE;
Gerald Maier, Ottersweier-Unzhurst, DE;
Mario Huesges, Buehlertal, DE;
Andreas Mueller, Herxheim, DE;
Regina Neigel, Buehl, DE;
Detlef Lauk, Renchen, DE;
Norbert Wegner, Buehl, DE;
Gerald Maier, Ottersweier-Unzhurst, DE;
Mario Huesges, Buehlertal, DE;
Andreas Mueller, Herxheim, DE;
Regina Neigel, Buehl, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a pressure compensation device for compensating pressure between an inner chamber of a housing, in particular an electric motor, gearbox, container or the like and an outer side. The device includes a pressure compensation membrane mounted on an annular end face of a cylindrical structure that extends toward the outer side. The cylindrical structure is provided with a ventilation channel that extends therethrough. The cylindrical structure extends towards the outer side in order to form a projection from the wall of the housing, which projection is delimited by the end face on which the membrane is applied in a curved, dome-shaped form. A protective cover extends towards the outer side at a spaced apart distance in relation to the membrane over the cylindrical structure.