US Patent 10227217 Adjustable gravity-driven lifting device
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Patent abstract
A lifting device is disclosed in which tong arms are coupled to parallel laminated horizontal spine members that slide in opposition to each other via input of force from the tong arms. The horizontal spine members are coupled to load-engaging feet to transfer the force of the tong members to a given load. The horizontal spine members include teeth or the like along a horizontal axis for engagement and indexing of the load-engaging feet.
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Patent Inventor Names
Anthony Freidhoff0
Gregory A. Cveykus0
Josh Mastruserio0
Edits on 23 Sep, 2022
Golden AI
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Patent Number
102272170
Date of Patent
March 12, 2019
0Patent Application Number
156832110
Date Filed
August 22, 2017
0Patent Citations Received
Patent Primary Examiner
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US Patent 10227217 Adjustable gravity-driven lifting device
Infobox
Is a
Patent jurisdiction
Patent number
10227217
Date of patent
March 12, 2019
Patent application number
15683211
Date Filed
August 22, 2017
Patent primary examiner
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