Tag Archives: tractor

Continuous pumping rod welding tractor

Application Number: 00118963Application Date: 2000.09.04Publication Number: 1341504Publication Date: 2002.03.27Priority Information: International: B60P3/00Applicant(s) Name: Lin ChuanhongAddress: Inventor(s) Name: Lin Chuanhong;Yang Xianping;Li WeiPatent Agency Code: 00000Patent Agent: Abstract The well site welding tractor capable of meeting continuous pumping rod welding condition is characterized by that on the tractor platform a 12V D.C. flash-buttwelder, an A.C. power generator,… Read More »

Brown's tractor capable of being regulated in height under load

Application Number: 00119511Application Date: 2000.07.25Publication Number: 1335121Publication Date: 2002.02.13Priority Information: International: A61F5/042;A61F5/045Applicant(s) Name: Zeng BingfangAddress: Inventor(s) Name: Zeng Bingfang;Guo ZhihaoPatent Agency Code: 31100Patent Agent: zuo yibengAbstract The Brown's tractor capable of being regulated under load includes: one foundation, one front frame support and one lower frame support comprising one upper part and lower part separately,… Read More »

Cervical vertebra tractor

Application Number: 00126152Application Date: 2000.08.23Publication Number: 1338244Publication Date: 2002.03.06Priority Information: International: A61F5/048Applicant(s) Name: Ma XiangguoAddress: Inventor(s) Name: Zhang KejunPatent Agency Code: 41107Patent Agent: yu zhaohuiAbstract A cervical vertebra tractor is composed of a tracting loop, a hard buttstrap, a piston and its barrel, air bag under the piston, and an inflating air bag connected with… Read More »