|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||141/98 ; 141/65 ; 141/387 ; 141/352|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 21 인용 특허 : 3|
A tank drain apparatus comprising an annular seal member (56) mounted on a tube (55) in turn mounted on a transparent drain hose (72), a sleeve (67) connecting tube (55) and hose (72) together, a portable ground stand assembly (15), and a unique leverage mechanism (10) operatively connecting sleeve (67) and stand (15) together, so that seal member (56) can be elevated to or lowered from the tank. A blade (61) in seal member (56) engages a drain valve while indicia (80, 83) on sleeve (67) indicates egree of angular rotation for tube (55) as against sleeve...
A drainage apparatus comprising a stand mast, means for supporting said stand mast on a working surface, first-class lever means having a fulcrum and including a load arm and an effort arm fulcrumed on said stand mast, funneling means pivotally attached to said effort arm, means fulcrumed on said stand mast and pivotally attached to said funneling means for maintaining in drainage orientation said funneling means during operation of said lever means, and means for locking said funneling means in a fixed position after operation of said lever means, said ...