|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||72/332 ; 72/348 ; 72/3794 ; 220/412|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 5 인용 특허 : 0|
An improved tank configuration wherein a die is employed to stamp a formed member is disclosed. The formed member may be used as either the top or bottom head for a portable liquid container, and is constructed so that all welding is eliminated in the corner and outlet portions of the container. A trim machine is employed to remove uneven edges from the formed part. By the present invention, a stamped configuration is provided in which a draw formed tank bottom is formed so as to allow complete and full drainage of the tank bottom. The top and bottom hea...
A method for forming the bottom of a tank for liquids, said tank having generally upwardly extending sides and a sloped bottom for complete drainage of liquid from the tank, said method comprising the steps of: (a) providing a generally flat, rectangular shaped plate member having a plurality of corner portions, wherein at least one corner portion is trimmed along a line which is approximately equal to the diameter of a finished curved corner of the bottom; (b) positioning said plate member in a head forming device having punch and die members, and formi...