The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7544035 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 09, 2009

Filed:

Aug. 09, 2005
Applicant:

Peter Friedrich, Boyne City, MI (US);

Inventor:

Peter Friedrich, Boyne City, MI (US);

Assignee:

Industrial Magnetics, Inc., Boyne City, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The disclosure includes an apparatus for moving a manhole cover comprising a lever having an engaging end, a linkage connected to the engaging end of the lever, and at least one magnet connected to the linkage and engageable with the manhole cover, wherein the lever provides leverage for moving the manhole cover. The at least one magnet may be selectively engageable with the manhole cover and may further have an interface surface. The at least one magnet may have a handle moveable between an engaged position, wherein a magnetic flux is emitted through the interface surface of the at least one magnet, and a disengaged position, wherein substantially no magnetic flux is emitted through the interface surface of the at least one magnet.


Find Patent Forward Citations

Friedrich, Peter. (2009). Manhole cover lift (U.S. Patent No. 7544035). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7544035

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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