Door operator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9790723
SERIAL NO

14969741

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A door operator includes a housing and at least one linearly guided piston in the housing. A roller carrier is disposed in the piston and includes a rotatably movable supported pressure roller. The piston is formed as a deep drawn structural component and includes a bottom and a circumferential walling. The support and the axial guiding of the roller carrier with a pressure roller within the piston can be realized in a simple and cost effective manner. Furthermore, an aperture is provided in the bottom of the piston, through which the pressure roller protrudes to the outside beyond the bottom of the piston.

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First Claim

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Patent Owner(s)

  • DORMAKABA DEUTSCHLAND GMBH

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bienek, Volker Ennepetal, DE 26 199
Hellwig, Alexander Ennepetal, DE 22 60

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