| |
 |
|
Class Information
Number: 173/8
Name: Tool driving or impacting > Automatic control of power operated means > Tool advance causing or controlling means > Responsive to torque or speed condition of drive > Drive motor motivating energy condition initiates control > Motive fluid flow or pressure condition of drive motor
Description: Apparatus in which the drive motor power material comprises a fluid which operates a fluid motor (e.g., expansible chamber type motor or turbine).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7198117 |
Method and arrangement for controlling percussion rock drilling |
Apr. 3, 2007 |
| RE38834 |
Safety trip assembly and trip lock mechanism for a fastener driving tool |
Oct. 18, 2005 |
| 6883620 |
Device for hydraulic power supply of a rotary apparatus for percussive drilling |
Apr. 26, 2005 |
| 6834731 |
Staple gun apparatus for attaching tab |
Dec. 28, 2004 |
| RE37923 |
Hydraulic circuit for automatic control of a horizontal boring machine |
Dec. 10, 2002 |
| 6119793 |
Rock drill |
Sep. 19, 2000 |
| 5778990 |
Arrangement in a hydraulically operated rock drilling equipment |
Jul. 14, 1998 |
| 5771981 |
Control system for percussion drill |
Jun. 30, 1998 |
| 5715724 |
Adaptive, self-regulating forging hammer control system |
Feb. 10, 1998 |
| 5564455 |
Hydraulic circuit for automatic control of a horizontal boring machine |
Oct. 15, 1996 |
| 5121802 |
Method and arrangement for controlling a rock drilling apparatus |
Jun. 16, 1992 |
| 4898219 |
Working head for a tree-shaping machine |
Feb. 6, 1990 |
| 4712415 |
Method of determining stroke length of a pneumatic forging hammer using sensed peak pressure |
Dec. 15, 1987 |
| 4712405 |
Method of self-regulation of output energy of forging hammers using input sensed peak of lifting fluid pressure for correction |
Dec. 15, 1987 |
| 4712404 |
Method of self-regulating consistency of applied energy in a forging hammer employing input differential |
Dec. 15, 1987 |
| 4711090 |
Method of and device for adjusting the feed movement of a drill rod for drilling a rock |
Dec. 8, 1987 |
| 4660656 |
Method and apparatus for controlling the rotational torque of a drill bit |
Apr. 28, 1987 |
| 4542940 |
Method and apparatus for cutting a trench through rock-like material |
Sep. 24, 1985 |
| 4440236 |
Hydraulic control system for a rock drill |
Apr. 3, 1984 |
| 4369848 |
Control system for a rock drill |
Jan. 25, 1983 |
| 4356871 |
Hydraulic control system for a rock drill |
Nov. 2, 1982 |
| 4343513 |
Method and power transmission system for operating a road planar machine |
Aug. 10, 1982 |
| 4318334 |
Torque control for a fluid operated motor |
Mar. 9, 1982 |
| 4280569 |
Fluid flow restrictor valve for a drill hole coring tool |
Jul. 28, 1981 |
| 4271914 |
Automatic feed and rotational speed control system of a hydraulic motor operated drill |
Jun. 9, 1981 |
| 4266171 |
Advance control system for use in a drilling apparatus |
May. 5, 1981 |
| 4246973 |
Controls for hydraulic percussion drill |
Jan. 27, 1981 |
| 4165789 |
Drilling optimization searching and control apparatus |
Aug. 28, 1979 |
| 4069928 |
Machine for clearing bulk material |
Jan. 24, 1978 |
| 4064950 |
Hydraulic drilling machine |
Dec. 27, 1977 |
| 4023626 |
Self-adaptive hydraulic rock drill |
May. 17, 1977 |
| 3979944 |
Hydraulic drill, in particular a rock drill |
Sep. 14, 1976 |
| 3945138 |
Hydraulically controlled and driven bucket wheel dredge |
Mar. 23, 1976 |
|
|
|
