US Patent 7503743 Manhole cover lift
Patent 7503743 was granted and assigned to Industrial Magnetics, Inc. on March, 2009 by the United States Patent and Trademark Office.
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Patent abstract
An apparatus for moving a manhole cover comprising a lever having a first lever arm pivotally connected to a second lever arm by a hinge for movement between a collapsed position, wherein the first lever arm is substantially parallel to the second lever arm, and a plurality of operative positions, wherein the first lever arm extends at a non-parallel angle with respect to the second lever arm. A linkage is connected to an engaging end of the lever, and at least one magnet is connected to the linkage and engageable with the manhole cover.
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US Patent 07503743 Manhole cover lift US Patent 7503743 Manhole cover lift
Infobox
Patent Number
0750374300
Patent Number
750374300
Edits on 27 Mar, 2023
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Is a
Current Assignee
Patent Jurisdiction
Patent Number
075037430
Date of Patent
March 17, 2009
0Patent Application Number
115827240
Date Filed
October 18, 2006
0Official Website
Patent Primary Examiner
Edits on 27 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
075037430
Date of Patent
March 17, 2009
0Patent Application Number
115827240
Date Filed
October 18, 2006
0Official Website
Patent Primary Examiner
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US Patent 07503743 Manhole cover lift
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07503743
Date of patent
March 17, 2009
Patent application number
11582724
Date Filed
October 18, 2006
Patent primary examiner
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