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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 |
| 6009947 | Casing conveyed perforator A wellbore completion system utilizes casing conveyed devices to establish a fluid communication path between a downhole formation and the casing string. Extendible pistons are mounted in the wall of the casing pipe string and are extended toward contact ... | 01/04/2000 |
| 5350525 | System and process for hydrocyclone separation of particulate solids and at least one liquid phase from a multiphase liquid mixture This invention relates to a system for separating a multiphase liquid mixture into a plurality of streams. The invention has particular utility in the oil industry where particulate solids are produced with an oil/water mixture. Preferably, the mixture is... | 09/27/1994 |
| 5336410 | Three chamber vessel for hydrocyclone separator The present invention relates to a hydrocyclone apparatus which is simple in design, more space efficient, and easier to maintain than prior art designs. The invention comprises a three chamber vessel wherein the inlet chamber is between the outlet and ov... | 08/09/1994 |
| 5194150 | Three chamber vessel for hydrocyclone separator The invention provides a highly space efficient solution to designing hydrocyclone vessels and the liners that are used therein. Moreover, the invention reduces the maintenance requirements for the vessels by providing the liners as units which are preass... | 03/16/1993 |
| 5172450 | Shaft cleaning and decontamination apparatus This invention relates to a device for cleaning and decontaminating rods, shafts or other long tubular materials. In particular, the device cleans and decontaminates rods that are used in downhole remediation tasks that might otherwise transfer contaminan... | 12/22/1992 |
| 5151079 | Method and apparatus for reduction of particle disintegration This invention relates to an improved particulate receiving chamber within a centrifugal separation device and more particularly within a decanter centrifuge. The improved receiving chamber reduces particle disintegration of the particulates which is part... | 09/29/1992 |
