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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||405/61 ; 405/52|
|발명자 / 주소||
|인용정보||피인용 횟수 : 5 인용 특허 : 2|
A cylindrical housing with either substantially straight or with inwardly tapering sidewalls is formed with a bottom portion that either tapers or curves inwardly until it meets a flat bottom area. A bracing section is connected within the housing to support a motor with fan or propeller blades operated thereby below the open top of the housing and above the bottom portion thereof. A plurality of openings are formed around and through the side wall above the bottom portion but below the motor so that when the housing is disposed in a body of water, and t...
A marine circulator comprising: housing means including substantially continuous cylindrical-shaped wall means of predetermined axial extent and predetermined circumferential size, said housing means being open at a top end thereof and closed at a bottom end thereof by closure means integral with said housing means to prevent entry of water and debris through the bottom end of said closure means; said closure means including a substantially flat bottom portion of predetermined circumferential size, smaller than the predetermined circumferential size of s...