Powered hand truck

Land vehicles – Wheeled – Tiltable vehicles – stabilized by attendant or article

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C180S209000, C414S490000

Reexamination Certificate

active

10761089

ABSTRACT:
A powered hand truck for assisting in the movement of objects. The powered hand truck includes an electric motor, a power source, a programable motor controller, and a transaxle, which are adaptable to existing hand trucks, or may be integrated into a new powered hand truck. The transaxle includes a differential allowing easy maneuvering of the hand truck. Power is provided by replaceable/rechargeable batteries. The motor controller controls the motor to provide consistent speed independent of load weight or incline, and further provides regenerative braking. The motor controller also includes diagnostics communicated through a display mounted to the hand truck.

REFERENCES:
patent: 1292022 (1919-01-01), Newman et al.
patent: 2740484 (1956-04-01), Montana
patent: 2996133 (1961-08-01), La Warre et al.
patent: 3182835 (1965-05-01), Meyer et al.
patent: 3362496 (1968-01-01), Landry
patent: 3450219 (1969-06-01), Fleming
patent: 3499501 (1970-03-01), Fitzgerald et al.
patent: 3698501 (1972-10-01), Gross
patent: 3719247 (1973-03-01), Hollis
patent: 3856104 (1974-12-01), Ohba
patent: 3896893 (1975-07-01), Willis et al.
patent: 3997182 (1976-12-01), Mortenson
patent: 4033421 (1977-07-01), Ikarimoto
patent: 4033595 (1977-07-01), Mauch
patent: 4136888 (1979-01-01), Bowie et al.
patent: 4312417 (1982-01-01), Dalton et al.
patent: 4420166 (1983-12-01), Law et al.
patent: 4550924 (1985-11-01), Alber
patent: 4570732 (1986-02-01), Craven
patent: 4762193 (1988-08-01), Levine
patent: 4865340 (1989-09-01), Mortenson
patent: 4960179 (1990-10-01), Leach
patent: 4974693 (1990-12-01), Nakai et al.
patent: 5036929 (1991-08-01), Trougouboff
patent: 5137103 (1992-08-01), Cartmell
patent: 5167389 (1992-12-01), Reimers
patent: 5207439 (1993-05-01), Mortenson
patent: 5322306 (1994-06-01), Coleman
patent: 5393081 (1995-02-01), Mortenson
patent: 5577568 (1996-11-01), Scott
patent: 5746282 (1998-05-01), Fujiwara et al.
patent: 5799959 (1998-09-01), Krawczyk
patent: 6039332 (2000-03-01), Austin
patent: 6062328 (2000-05-01), Campbell et al.
patent: 6098732 (2000-08-01), Romick et al.
patent: 6173799 (2001-01-01), Miyazaki et al.
patent: 6210095 (2001-04-01), Hempel et al.
patent: 6234497 (2001-05-01), Stahler, Sr.
patent: 6257358 (2001-07-01), Roach
patent: 6276471 (2001-08-01), Kratzenberg et al.
patent: 6302414 (2001-10-01), Berthiaume et al.
patent: 6328319 (2001-12-01), Stahler, Sr.
patent: 6474427 (2002-11-01), Tunnecliff
patent: 6488304 (2002-12-01), Krawczyk
patent: 6530740 (2003-03-01), Kim
patent: 6588775 (2003-07-01), Malone, Jr.
patent: 6601859 (2003-08-01), Durham
patent: 6793236 (2004-09-01), Mitchell
patent: 2004/0238241 (2004-12-01), Mitchell, Jr.
patent: 09295578 (1997-11-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Powered hand truck does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Powered hand truck, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Powered hand truck will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3745143

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.