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Class Information
Number: 248/654
Name: Supports > Machinery support > Movable machine > Including operator or actuator > For angular movement > Extensible leg or strut > Hydraulic or pneumatic
Description: Structure wherein the length or angularity of the extensible member is varied by hydraulic or pneumatic means.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7114693 |
Stable cell platform |
Oct. 3, 2006 |
| 6227357 |
Air lift device |
May. 8, 2001 |
| 6047901 |
Spray boom support assembly |
Apr. 11, 2000 |
| 5884852 |
Agricultural vehicle with spring suspension of a boom |
Mar. 23, 1999 |
| 5865063 |
Three-axis machine structure that prevents rotational movement |
Feb. 2, 1999 |
| 5832676 |
Disaster restoral pop-up structure |
Nov. 10, 1998 |
| 5779216 |
Power tool torque and weight balancing apparatus |
Jul. 14, 1998 |
| 5771747 |
Machine having an adjustable framework and an internal multi-axis manipulator |
Jun. 30, 1998 |
| 5538216 |
Support device of a laying vehicle, especially of a track-laying vehicle |
Jul. 23, 1996 |
| 5538373 |
Machine tool vibration isolation system |
Jul. 23, 1996 |
| 5500094 |
Coke drum deheading device |
Mar. 19, 1996 |
| 5489168 |
Metrology instrument arm system |
Feb. 6, 1996 |
| 5354158 |
Six axis machine tool |
Oct. 11, 1994 |
| 5245780 |
Automatic outrigger control |
Sep. 21, 1993 |
| 5156219 |
Positioning apparatus for drawn implement |
Oct. 20, 1992 |
| 5114300 |
Robotic apparatus |
May. 19, 1992 |
| 5028180 |
Six-axis machine tool |
Jul. 2, 1991 |
| 4988244 |
Six-axis machine tool |
Jan. 29, 1991 |
| 4799556 |
Drilling boom |
Jan. 24, 1989 |
| 4762459 |
Industrial robot |
Aug. 9, 1988 |
| 4706923 |
Resilient mounting of a centrifuge |
Nov. 17, 1987 |
| 4696197 |
System for counterbalancing tool mount loads in a machine tool |
Sep. 29, 1987 |
| 4667354 |
Tilting upper body support patient trolley |
May. 26, 1987 |
| 4629526 |
Method of and means for replacing corrugating rolls in a single facer |
Dec. 16, 1986 |
| 4594824 |
Telescoping tower for floodlighting equipment and the like |
Jun. 17, 1986 |
| 4514796 |
Method and apparatus for controlling the position of a hydraulic boom |
Apr. 30, 1985 |
| 4473214 |
Luffing jib for construction crane |
Sep. 25, 1984 |
| 4415304 |
System for floatingly supporting a load |
Nov. 15, 1983 |
| 4380842 |
Tool support apparatus |
Apr. 26, 1983 |
| 4364540 |
Support-arm assembly for a drill or borer, particularly for subterranean applications |
Dec. 21, 1982 |
| 4360182 |
High-agility reflector support and drive system |
Nov. 23, 1982 |
| 4344599 |
Rock drill boom structure |
Aug. 17, 1982 |
| 4327633 |
Ham skinning apparatus |
May. 4, 1982 |
| 4290239 |
Tool positioner |
Sep. 22, 1981 |
| 4284368 |
Vehicle with dual drill booms and temporary roof support |
Aug. 18, 1981 |
| 4265147 |
Working pit with articulated tool arm assembly |
May. 5, 1981 |
| 4264051 |
Laterally adjustable multiple head |
Apr. 28, 1981 |
| 4233119 |
Ascension pipe and elbow cleaning apparatus |
Nov. 11, 1980 |
| 4232849 |
Drill boom arrangement |
Nov. 11, 1980 |
| 4232850 |
Drill boom arrangement |
Nov. 11, 1980 |
| 4190117 |
Support and positioner for rock drill |
Feb. 26, 1980 |
| 4046346 |
Slide mechanism having means for fixing movable frames |
Sep. 6, 1977 |
| 4040584 |
Mounting arrangements for mineral displacing tools |
Aug. 9, 1977 |
| 4000873 |
Mounting for rock drills |
Jan. 4, 1977 |
| 3999616 |
Method and apparatus for establishing the drilling line of an overhead boring machine |
Dec. 28, 1976 |
| 3993271 |
Drill boom arrangement |
Nov. 23, 1976 |
| 3982715 |
Adjustable tool positioning structure |
Sep. 28, 1976 |
| 3980142 |
Drilling boom |
Sep. 14, 1976 |
| 3973747 |
Method of and arrangement for controlling the speed of the movements of hydraulic booms |
Aug. 10, 1976 |
| 3957124 |
Tunnel-drilling truck |
May. 18, 1976 |
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