Hydraulic door closer with fluid overflow chamber
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[0042]In the listed figures, the described components have the reference numerals set out in the following table:
ComponentFeatureDescription100Rotational Hydraulic Closer110Pinion112Pinion gear teeth120Housing121Overflow connecting chamber123Horizontal overflow chamber124Vertical overflow chamber125Angular overflow chamber126Gravity-operated overflow chamber127Static overflow chamber128Overflow chamber internal volume129Overflow chamber130Gravity-operated piston131Gravity-operated piston132Gravity-operated piston133Sealing portion135Seal140Overflow chamber vertical plug183Horizontal overflow chamber screw plug184Vertical overflow chamber screw plug185Angular overflow chamber screw plug186Overflow chamber screw plug187Overflow chamber top190Closer piston192Piston gear teeth193Piston Seal194Sealing portion of closer piston200Mounting tab210Biasing spring220Valve, speed control225Speed control device226Speed control device230Pressurized side of piston240Unpressurized side of piston250Spee
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