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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7267010 | Inertial mass guided single axis vibration test machine A single axis vibration test system includes a vibration force generator or “shaker” which can be used with a head expander, and separate pairs of hydrostatic self-aligning sliding bearings connecting two large reaction masses to the head expander. Preload force... | 09/11/2007 |
| 6860152 | High frequency multiple degree of freedom vibration test machine A vibration test machine comprises a stationary outer frame, a shake table in the form of a mass to which vibration energy is transmitted inside the outer frame, a driven preload piston supported by the outer frame and coupled to one side of the shake table, a passi... | 03/01/2005 |
| 5996417 | Preload piston actuator A hydraulic actuator for vibration testing equipment includes a double-acting piston having a coaxial floating piston assembly coupled to one end of the piston rod. The floating piston assembly has a preload piston pressurized to allow the overall length ... | 12/07/1999 |
| 5665919 | High frequency vibration test fixture with hydraulic servo valve and piston actuator A vibration test fixture includes a reciprocating slip plate carrying an article subjected to vibration and shock testing. A pair of opposed, spaced apart low oil pressure hydrostatic linear bearings support the slip plate during reciprocating single-axis... | 09/09/1997 |
| 5544528 | High frequency vibration test fixture with hydraulic servo valve and piston actuator A vibration test fixture includes a reciprocating slip plate carrying an article subjected to vibration and shock testing. A pair of opposed, spaced apart low oil pressure hydrostatic linear bearings support the slip plate during reciprocating single-axis... | 08/13/1996 |
| 5343752 | High frequency vibration test fixture with hydraulic servo valve and piston actuator A vibration test fixture includes a reciprocating slip plate carrying an article subjected to vibration and shock testing. A pair of opposed, spaced apart low oil pressure hydrostatic linear bearings support the slip plate during reciprocating single-axis... | 09/06/1994 |
