Stair climbing hand truck

Details Stair climbing hand truck Stair climbing hand truck

1996-07-03

1998-11-10

DePumpo, Daniel G.

Land vehicles

Step or abutment ascending type vehicle

With spider-type engaging means

280 524, 280 4727, B62B 104

Patent

active

058332499

ABSTRACT:
A stair climbing hand truck utilizes two pairs of wheels which are attached to a secondary frame forming a part of the hand truck and which are mounted in an overlapping relationship. The first pair of wheels is mounted exteriorly of the secondary frame so as to lie outside of the hand truck's main frame structure, and the second pair of wheels is mounted interiorly of the main frame structure wherein all wheels are of the same diameter.

REFERENCES:
patent: 1807913 (1931-06-01), Hollowood
patent: 2700573 (1955-01-01), Nordgard
patent: 2747883 (1956-05-01), Frost
patent: 2770310 (1956-11-01), Gates
patent: 3055523 (1962-09-01), Wurn
patent: 3079168 (1963-02-01), Monroe et al.
patent: 3411798 (1968-11-01), Capadalis
patent: 4046391 (1977-09-01), Restad et al.
patent: 4290618 (1981-09-01), Morton
patent: 4368896 (1983-01-01), Ortega
patent: 4531752 (1985-07-01), Diener
patent: 4570935 (1986-02-01), Stefanini
patent: 4858940 (1989-08-01), Cheng
patent: 4962940 (1990-10-01), Cuschera
patent: 5277439 (1994-01-01), Pipes et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1509405