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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/899 ; 251/059 ; 251/291|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 23 인용 특허 : 6|
The valve operating apparatus cycles valves between open and closed positions. The valve operating apparatus includes a trailer for use in towing behind other vehicles, for instance, behind a pickup truck. The trailer includes an engine, pump, battery, reservoir and a bidirectionally oriented motor which is suspended from a telescoping extension bar. The operation of the valve operating apparatus is substantially balanced and requires very little effort by the operator to operate. Specifically, the operator does not have to push down or lift the apparatu...
[ What is claimed is:] [6.] A valve operating apparatus for operating a valve comprising a trailer, said trailer includes a frame, a valve motor, a valve key, said valve key secured to said valve motor for operation therewith, a pump to power said valve motor, a first shroud, a second shroud, said valve motor affixed to said second shroud, said second shroud pivotally mounted to said first shroud, said first shroud pivotally mounted to said trailer, and, said first and second shrouds enabling alignment of said valve motor and said valve key with said val...