|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||182/200 ; 182/111|
|발명자 / 주소|
|인용정보||피인용 횟수 : 8 인용 특허 : 0|
The present invention provides a base device for attachment to a ladder comprising a base, a top pivotally mounted on the base, ladder receiving means on the top of securably and releasably receiving the ladder therein, and adjustment means on the top for holding the top in a selected position relative to the base.
A base device for attachment to a ladder comprising a base; ground engaging means depending from said base and being adapted to engage various types of surfaces; a top pivotally mounted to said base, said top being approximately triangular in shape and comprising two identical portions enveloping said base, and a plate attached to the topmost edge of each of said two identical portions; ladder receiving means on said top for releasably and securably receiving a pair of spaced apart rails of said ladder therein; and adjustment means for holding said top i...