Matches 1 - 35 out of 35


Match Document Document Title
7568531 Gear transmission device for power tool  
A gear transmission device for a power tool. The device transmits rotation of an input shaft to an output shaft, which are coaxially rotated. The input shaft includes a distal portion, and the...
7306051 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Gear transmission device for power tool
 
A gear transmission device for a power tool. The device transmits rotation of an input shaft to an output shaft, which are coaxially rotated. The input shaft includes a distal portion, and the...
5388654 Ground-boring device  
A ground-boring device with a ground auger, which features a boring spindle driven by an engine-transmission unit. A framework is provided with a travelling gear. On the grip ends of the framework...
5090486 Multi-purpose earth drill  
The multipurpose earth drill is tractor mountable with hydraulic operators to allow using the weight of the tractor for downward pressure on an extensible shaft earth drill which may be an auger...
4932481 Roof bolt drill support  
A mining roof bolt drill feed mechanism whereby the drill is supported on a horizontal pylon extending from an elongate slot in a vertical box section inner strut. The inner strut telescopes...
4875529 Alternate forms of, side drive drilling  
Disclosed is a method and apparatus comprising a side drive system with a drive shaft (24, 24a) driven from the platform level (10) and powering a drilling unit (16) for rotating drill pipe (14)....
4312413 Drilling apparatus  
Drilling apparatus embodying an elongated boxed-in frame supporting a transmission unit for longitudinal movement therein with the transmission unit connecting a polygonal drive shaft to a driven...
4190119 Earth drilling apparatus  
An earth drilling method and apparatus utilizes a unique drill string rotary drive and support arrangement which provides for the utilization of longer drill strings than could heretofore be...
4116284 Earth drills  
An earth auger arrangement wherein a power source is mounted on wheels for moving the power source over the earth's surface with means connected to the power source for relaying power to a...
4057114 Hand-held ice auger  
A flexible shaft is connected directly to the crank shaft of a snowmobile engine by a coupler. The flexible shaft drives a reduction gear which is enclosed in a hand-held housing. The reduction...
3976147 Auger  
A safety earth auger is employed for forming post holes and in similar uses. The auger is supported pivotally beween elongated handles and is driven from an engine mounted on a remote frame. The...
3854537 TWIN PULL DOWN CHAIN EQUALIZER  
An equalizer assembly for maintaining tension in the chains used to drive a drill stem rotating mechanism of a blast hole drill has two spaced, floating equalizer frames, each of which includes a...
3828861 ICE AUGER WITH SLIP CLUTCH IN DRIVE  
A portable ice auger for use with snow vehicles is provided having a slip clutch in the auger head and a clutch control lever adjacent a clutch handle for control of the clutch slip by an auger...
3670827 UNDERGROUND DRILLING MACHINE  
A compactly arranged drilling machine, having all of its components arranged on a single base, is provided. These components comprise a conventional swivel head with hoisting drum, a power means...
3602321 ICE AUGER ATTACHMENT FOR SNOW VEHICLES  
An ice auger attachment for snow vehicles arranged to be driven from the snow vehicle motor by manually operated belt and clutch pulley means.
3576217 AIR FEED NUT RUNNER HAVING A TRAVELLING GEAR CASE  
A nut-running tool having a work spindle arranged in a supporting base so as to be advanced by a pneumatically powered piston into engagement with a threaded fastener. As the spindle advances, it...
3474872 COMPACT BORING MACHINE  
3179186 Rotary soil coring apparatus  
3144085 Power spinner unit for well swivels  
3139944 Fence post driver  
3063203 Grinder  
3024852 Apparatus for excavating large diameter shafts  
3017707 Excavation machine  
3017708 Tree excavator and transplanter  
3012619 Drilling rig  
3009521 Drive for earth boring tools  
2998084 Fluid operable power device for well operations  
2998333 Machine tool for removing material from a container  
2995197 Post hole auger structure  
2939682 Posthole digger attachment for tractor  
2894723 Drilling apparatus  
2890860 Post hole auger  
2856158 Sampling apparatus  
2856156 Power lift  
2815049 Two wheel mobile power saws with elevating wheel attachment  

Matches 1 - 35 out of 35