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US Patent 11834889 Door opener with adjustable screw rod

OverviewStructured DataIssuesContributors

Contents

Is a
Patent
Patent
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Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
118348890
Patent Inventor Names
Hung-Jen Tien0
Date of Patent
December 5, 2023
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Patent Application Number
175248180
Date Filed
November 12, 2021
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Patent Citations
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US Patent 8169169 Door operator for controlling a door and method of same
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US Patent 10024094 Apparatus for connecting door closer or operator to swing door
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US Patent 10030425 Apparatus for providing constant torque output from a door closer or operator
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US Patent 10030426 Inductive door position sensor
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US Patent 10077591 Door operator assembly
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US Patent 10180023 Apparatus and method for control of spring force in a door closer or operator
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US Patent 10208520 Method and apparatus for adjusting the closing force of a door
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US Patent 10236801 Door closer system
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...
Patent Primary Examiner
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Jerry E Redman
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CPC Code
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E05Y 2600/322
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E05Y 2600/45
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E05Y 2600/52
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E05Y 2600/62
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E05Y 2600/622
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E05Y 2900/132
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E05Y 2400/45
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E05F 15/63
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Patent abstract

A door opener includes a driving device having a first transmission member driven by a motor. A push rod is connected to the first transmission member to move therewith. A pressing rod unit is pivotably coupled to the push rod and includes a coupling sleeve, first and second end pieces coupled to the coupling sleeve, and an adjusting screw rod in threading connection with the second end piece. The first end piece is coupled with a first pivotal member coupled with a door. An end of the adjusting screw rod is located outside of the coupling sleeve and is coupled with a second pivotal member pivotably connected to the push rod. When the adjusting screw rod rotates, the adjusting screw rod moves in an axial direction of the coupling sleeve to change a length of a portion of the adjusting screw rod outside of the coupling sleeve.

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