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United States of America Patent

APP PUB NO 20190194973A1
SERIAL NO

15851670

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A lock includes: a drive unit with a first rotatable connecting member, an opposite second rotatable connecting member, and a drive member; a press member disposed in the first rotatable connecting member; a first sleeve sleeved onto the first rotatable connecting member and including a first positioning groove; a second sleeve sleeved onto the second rotatable connecting member and including a second positioning groove; a first spring disposed in the first positioning groove and having two ends; a second spring disposed in the second positioning groove and having two ends; a first horizontal lever sleeved onto the first rotatable connecting member; and a second horizontal lever sleeved onto the second rotatable connecting member. The lock is improved in durability and service life, can be easily locked pressing the pressing member, and allows a user to tell by appearance whether the lock is locked or not.

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Patent Owner(s)

Patent OwnerAddress
CHENG TA HUNGNot Provided

International Classification(s)

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  • 2017 Application Filing Year
  • E05B Class
  • 1203 Applications Filed
  • 879 Patents Issued To-Date
  • 73.07 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
CHENG, TA-HUNG Changhua County, TW 1 0

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  • E05B Class
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  • 6 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges196311123101 - 1011 - 2021 - 3041 - 50020406080100120140160180200220240260280300320340

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