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Class Information
Number: 254/93R
Name: Implements or apparatus for applying pushing or pulling force > Fluid pressure
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4099707 |
Vehicle moving apparatus |
Jul. 11, 1978 |
| 4087076 |
Pneumatic jack |
May. 2, 1978 |
| 4076214 |
Double-acting jack having a position stop |
Feb. 28, 1978 |
| 4076215 |
Electrohydraulic drawing apparatus, particularly a hoist |
Feb. 28, 1978 |
| 4075719 |
Chair lift apparatus |
Feb. 28, 1978 |
| 4065112 |
Hydraulic jack cushioning apparatus |
Dec. 27, 1977 |
| 4060221 |
Double-acting hydraulic cylinder having two pistons arranged for coaxial movement relative thereto |
Nov. 29, 1977 |
| 4053062 |
Tube bundle extractor for use with heat exchangers |
Oct. 11, 1977 |
| 4050545 |
Vehicle lifting jack assembly |
Sep. 27, 1977 |
| 4046354 |
Apparatus for positioning and supporting a machine |
Sep. 6, 1977 |
| 4045855 |
Truck bolster lifting device |
Sep. 6, 1977 |
| 4037821 |
Telescoping retractor |
Jul. 26, 1977 |
| 4030705 |
Vehicle supported motor lift |
Jun. 21, 1977 |
| 4028792 |
Method of erecting a tower crane from two groups of modular tower sections differing in cross section |
Jun. 14, 1977 |
| 4027854 |
Self-equalizing linkage for well derricks |
Jun. 7, 1977 |
| 4026523 |
Hydraulic jacks |
May. 31, 1977 |
| 4026524 |
Fluid operated ram for felling trees |
May. 31, 1977 |
| 4014515 |
Snubber for one end lift jacks |
Mar. 29, 1977 |
| 4004532 |
Riser tension system for floating platform |
Jan. 25, 1977 |
| 4004777 |
Hydraulic tensioning device |
Jan. 25, 1977 |
| 3993206 |
Power slide mechanism |
Nov. 23, 1976 |
| 3992919 |
Sheet metal pulling power head and stand |
Nov. 23, 1976 |
| 3986564 |
Well rig |
Oct. 19, 1976 |
| 3985328 |
Prop-and-shoe assemblies of self-advancing mine roof-supports |
Oct. 12, 1976 |
| 3970171 |
Three-stage load-lifting assembly for fork-lift trucks |
Jul. 20, 1976 |
| 3964119 |
Support leg for bridges |
Jun. 22, 1976 |
| 3958098 |
Apparatus for automatic and vertical fillet welding |
May. 18, 1976 |
| 3955797 |
Swimming pool lift |
May. 11, 1976 |
| 3954198 |
Lift truck for vehicles |
May. 4, 1976 |
| 3952998 |
Device for installing rocket engines |
Apr. 27, 1976 |
| 3946988 |
Tree and the like obstacle extractor |
Mar. 30, 1976 |
| 3946886 |
Towing device for small planes and the like |
Mar. 30, 1976 |
| 3945610 |
Timber felling device |
Mar. 23, 1976 |
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