Motor vehicles – Power – Electric
Reexamination Certificate
2008-06-24
2008-06-24
Ellis, Christopher (Department: 3618)
Motor vehicles
Power
Electric
C701S093000
Reexamination Certificate
active
07389836
ABSTRACT:
The present invention is a motorized shopping cart retriever that includes a controller that attenuates the power provided to the drive system of the retriever to prevent the retriever from being utilized to move an excessively heavy load of shopping carts. By preventing the retriever and carts from being subjected to overloaded conditions, the operational lives of the retriever and carts are maximized. The retriever is also provided with a burst mode that allows the power provided to the drive system to rapidly increase past the normal attenuated level for a brief period of time in order to reduce the time required to accelerate a retriever loaded with carts to a terminal velocity.
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Dane Industries, Brochure “Productivity Solutions from the Industry Leader”, 2 pages, 2001.
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Declaration of David A. Leckey, Executive Vice President of Dane Industries, Inc., attaching colored photos showing a hitch of a motorized shopping cart mover that is configured to receive the rear wheels of a shopping cart, labeled “Exhibit R”, “Exhibit S” and “Exhibit T”, 4 pages, at least as early as Aug. 4, 2003.
Declaration of William A. Grimes, Senior Vice President of Dane Industries, Inc., attaching a colored photo showing a hitch of a motorized shopping cart mover that is configured to receive the rear wheels of a shopping cart, labeled “Exhibit X”, 2 pages, at least as early as Jan. 13, 2003.
Declaration of David Leckey, Executive Vice President of Dane Technologies, Inc., attaching photos showing a motorized Quickart 2000 shopping cart mover with a hitch that allows the Quickart 2000 to move two side-by-side lines of shopping carts, labeled “Exhibit A”, “Exhibit B” and “Exhibit C”, 4 pages, at least as early as Oct. 27, 2003.
Declaration of William A. Grimes, Senior Vice President of Dane Industries, Inc., attaching photos showing a motorized shopping cart mover and hitch, labeled “Exhibit E” and “Exhibit F”, and showing a motorized shopping cart mover employing a second type of hitch for attaching to a shopping cart, labeled “Exhibit G”, “Exhibit H” and “Exhibit I”, 6 pages, at least as early as Autumn 2004.
Declaration of William A. Grimes, Senior Vice President of Retail Sales of Dane Industries, Inc., attaching photos showing a motorized shopping cart mover with a hitch that is configured to attach to a shopping cart, labeled “Exhibit O”, “Exhibit P” and “Exhibit Q”, 4 pages, at least as early as 2001.
Declaration of William A. Grimes, Senior Vice President of Retail Sales of Dane Industries, Inc., attaching photos showing a hitch of a motorized shopping cart mover that is configured to enter the rear of a shopping cart, labeled “Exhibit U”, “Exhibit V” and “Exhibit V”, 4 pages, at least as early as Aug. 31, 2004.
Declaration of James W. Wiff, Vice President, Engineering and Product
Holtan Paul D.
Johnson Daniel T.
Wiff James W.
Dane Industries, Inc.
Dorsey & Whitney LLP
Ellis Christopher
Swenson Brian
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