|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||366/120 ; 366/108|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 10 인용 특허 : 2|
A concrete vibrator 10 having a direct current motor 3 and a battery pack 19 mounted in a handle housing 17. The battery pack 19 is attached to a hook 75 provided in an opening of the handle housing 17, and a battery cover 80 is attached to completely cover the battery pack 19. Air inlet ports 41, 42 and air exhaust ports 43, 44, 45 are formed in a lower side of a concrete vibrator body between the lower end of handle housing 17 and the lower forward end of a motor housing 11.
[ What is claimed is:] [1.] A concrete vibrator comprising:a concrete vibrator body including a motor housing with a forward end and a rear end and a handle housing connected to the rear end of said motor housing, and said concrete vibrator body having a lower side;a vibration rod projecting from the forward end of said motor housing;a direct current motor being housed in said motor housing for driving said vibration rod about a rotational axis; anda battery being housed in said handle housing for powering said motor;wherein said handle housing includes ...