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| Number | Title | Issue Date |
| 5355732 | Vibrating table with driven unbalanced shafts A vibrator includes a vibrating table; a plurality of driven unbalanced shafts disposed within the vibrating table and arranged in pairs; and a plurality of unbalanced bodies. A separate unbalanced body is connected to each unbalanced shaft. The unbalance... | 10/18/1994 |
| 5187982 | Vibration controlled experimenting device provided with a motor with an imbalanced rotor A controlled vibration experiment device having a vibration model structure to simulate actual mechanical vibration and to monitor and analyze the vibration by a computer monitor. The device has a base plate, a supporting frame, a T-shaped sliding rail, a... | 02/23/1993 |
| 5033302 | Rotary balancing machine mounting assembly with integral calibration device A mounting stand in a balancing machine mounting assembly includes a stationary mounting block and a mount for a rotary member to be balanced. The mount is supported on the mounting block by two parallel springs capable of oscillating movement in a mounti... | 07/23/1991 |
| 4546425 | Procedure and device for optimation of the vibration amplitude in vibratory rollers A method is disclosed for providing optimal compaction of various materials by controlling the vibration amplitude of an adjustable amplitude vibratory roller. The vibration amplitude is automatically reduced when excessively high jolting forces are sense... | 10/08/1985 |
| 4457165 | Apparatus and method for drive shaft signature analysis The dynamic properties of a machine are defined by its kinetic energy, potential energy and dissipation functions. The machine is also identifiable by the nonviscous friction therein. These properties form the basis for the dynamic analysis of any machine... | 07/03/1984 |
| 4446734 | Motor driven exciter A hammer-type device is driven by a cam and spring arrangement in reciprocating motion to strike a moving train wheel for producing vibrations therein which are used to detect defects in the wheel.... | 05/08/1984 |
| 4364275 | Method and apparatus for measuring phase angles of oscillatory motion of vibratory machinery A method of determining the phase angle of a vibrating mechanism using line segments of selected angles. The motion of the line segments on the vibration mechanism is observed and the phase angle of the vibratory mechanism is determined using information ... | 12/21/1982 |
| 4327814 | Rotating eccentric weight apparatus and method for generating coded shear wave signals A rotating eccentric weight apparatus and method for generating coded shear wave signals for use in seismic exploration. The apparatus includes a rotatable eccentric and a position sensor capable of detecting each instant that the eccentric passes a parti... | 05/04/1982 |
| 4235110 | Apparatus and method for measuring the crevice gap clearance in a heat exchanger Apparatus and method for measuring the crevice gap clearance between the tubes and tube supports in a heat exchanger includes setting the tube into vibration until it impacts against the tube support plate and determining by accelerometers mounted on the ... | 11/25/1980 |
