|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||16/26 ; 16/DIG ; 27|
|발명자 / 주소|
|인용정보||피인용 횟수 : 13 인용 특허 : 2|
A free wheel caster is provided and consists of a large ball rotatively carried within a cavity in a cup portion of a caster body which rolls against a plurality of small balls to ride freely within anti-friction material coating recesses in the cavity. The caster body can be attached to bottom of an object to move the object across a flat surface. It can also be attached to top of an object to move other objects thereacross. A ready access hole is also provided in the cup portion so that a tool can be inserted for prying and thereby removing the large b...
A free wheel caster which comprises: (a) a caster body defined by a base portion, a shaft portion extending from the base portion and a one piece cup portion extending from the shaft portion, the base portion being adapted to be affixed in a first position to a bottom portion of an object and in a second position to a top portion of an object, the cup portion having a generally dome-shaped cavity therein with a plurality of spaced apart recesses formed in a wall of the cavity; (b) a plurality of small balls, each mounted to freely ride within a recess; a...