Patent
Carrier having device for assisting stair climbing
TLDR
In this article, a carrier with a base, a number of wheels attached to the base, and a spring biasing device for engaging with the stairs and for biasing the base while the base is moved relative to stairs, in order to facilitate the base of the carrier upstairs or downstairs.Abstract:
A carrier includes a base, a number of wheels attached to the base, and a spring biasing device for engaging with the stairs and for biasing the base while the base is moved relative to stairs, in order to facilitate the base of the carrier upstairs or downstairs. One or more posts are secured to the base, and one or more barrels are slidably engaged on the posts for engaging with the stairs. The spring biasing device includes a number of springs engaged with the barrels for for applying biasing forces against the barrels when the barrels are engaged with the stairs.read more
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Patent
Dolly for moving a bendable roll of material, such as a carpet
Jean-Guy Dube,Kamal Roy Nandram +1 more
TL;DR: In this article, a dolly for moving a bendable roll of material such as a carpet and bending it to fit into a confined space, such as an elevator, includes a primary section capable of supporting a first portion of the roll and having ground-engaging wheels.
Patent
Adjustable all-terrain dolly system and method
TL;DR: An adjustable all-terrain dolly system has a chassis assembly that includes a frame which has a right side rail, a left side rail and a cross member, and a first-rolling assembly to include a first set of inline wheels and at least one adjustable locking mechanism as mentioned in this paper.
Patent
Cart for staircase
Baik Min Sun,Kim Hyo Jin +1 more
TL;DR: In this article, a handle unit (200) on the upper end of the present invention has a handle holding unit (208) provided such that the handle can be held in a desired direction about a rotating handle body (202) according to a loaded object, and also has manipulation button A (205) and manipulation button B (206) provided on upper side thereof to be used.
Patent
Bicycle enabling user to conveniently go up and down stairs
TL;DR: In this paper, a bicycle with a fixed frame and a rolling wheel set is described, where the user does not need to carry the bicycle with the hands or on the shoulder when going up and down the stairs.
Patent
Staircase movable cart
TL;DR: In this paper, a hand truck for carrying heavy loads up and down a staircase is described, where the cart is divided into two parts that separate while doing the movements to step up or down through the stairways then it unites together to repeat the cycle.