|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||299/041.1; 030/105; 125/013.03|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 4 인용 특허 : 6|
A ring saw device used in the installation of manholes to afford proper installation height and angular inclination compliant to street surface. The ring saw cutting device has a support ring base that acts as an elevated and inclination guide with a dual axis cutting assembly rotatably disposed therewithin.
Therefore I claim: 1. A ring saw cutting device for manholes comprises, an annular ground engagement support frame, a guide frame bridge rotatably positioned across said support frame, a movable transport carriage within said guide frame, a saw mount assembly pivotally secured to said transport carriage movable from a first non-engagement position to a second material engagement position, a saw adjustably positioned within said saw mount assembly, guide frame wheel assemblies engageable on said support frame, transport carriage wheel assemblies engageab...