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US20110120017 |
VARIABLE SEAL PRESSURE SLIT VALVE DOORS FOR SEMICONDUCTOR MANUFACTURING EQUIPMENT
Techniques for a door system for sealing an opening between two chambers in a semiconductor processing system are described. A sealing member seals the opening when a door is in a closed position.... |
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US20130091768 |
DOOR CONTROL APPARATUS
A door control apparatus and methods for controlling a door motion device for a hinged door and, optionally, illuminating a designated area on the floor. During the time the designated area is... |
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US20090205256 |
Pneumatic car trunk opener
A pneumatic car trunk opener has an electric compressor, an air tank, a regulator, three way solenoids to control air flow, and a pneumatic piston. The pneumatic piston is fed air via a hose from... |
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US20090133332 |
OPENING DEVICE FOR A FACADE ELEMENT
A device and a method for opening a pivotable façade element both for everyday comfort ventilation purposes and for emergency opening in the case of e.g. fire. The device comprises a rigid frame... |
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US20090094897 |
LIFTGATE HYDRAULIC CLOSURE CYLINDER
A liftgate system may include a closer cylinder assembly for use in opening and closing a deck. The closer cylinder assembly may have a hydraulic fluid portion on one side of a piston and an air... |