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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 |
| 8187356 | Protective cover for respiratory device A protective cover for preventing entry of particulate matter into a delivery hose of a respiratory device includes a filter member having a peripheral edge portion. The filter member is composed of a filter material having a mesh size capable of preventing the part... | 05/29/2012 |
| 8157882 | Hanging air filter An air filter for filtering air in a refrigerating apparatus is provided, including a housing having a hollow body with at least a front wall, a pair of side walls, and a top and bottom wall. At least one wall includes at least one aperture for the passage of air. T... | 04/17/2012 |
| 7972403 | Rotate-once outlet fitting for a filter housing A filter apparatus includes a filter housing having at least one opening and a plurality of retention tabs positioned proximate to at least one of the openings and secured to the filter housing. Also included is a connection fitting having a tube segment sized and c... | 07/05/2011 |
| 7964011 | Multi-throat air filter An air filter is provided having a filter body and a throat connected to a bottom of the filter body. The throat includes a plurality of throat sections. Each of the plurality of throat sections has a different inner diameter. The throat may further included molded ... | 06/21/2011 |
| 7396383 | Membrane-based reservoir dryer A device and method for preventing ingression of contaminants and moisture and for removing moisture from a fluid reservoir, the device comprising a fluid reservoir for supporting a fluid therein, a fluid reservoir opening for allowing an exchanging of air between a... | 07/08/2008 |
| 7367998 | Filter element and method for producing it and tank breather filter with a filter element of this kind The invention relates to a filter element (50), in particular for a tank breather filter (10), the filter element (50) being produced from a flat filter material. To form the filter element (50) in such a way that it can be produced at lo... | 05/06/2008 |
| 7360772 | Child transport air filtering system A child transport air filtering system comprising: a child transport device; an air filtering device removeably coupled to the child transport device; a power supply removeably coupled to the child transport device, and removeably coupled to the air filtering device... | 04/22/2008 |
| 7357823 | Disposable filter within a removable chamber A vacuum cleaner includes a housing, a nozzle inlet, a suction generator and a dirt cup. The dirt cup includes a dirt collection chamber, an inlet and an open end. Additionally, the vacuum cleaner includes a filter assembly. The filter assembly includes a filter hou... | 04/15/2008 |
| 7320721 | Chemical filter and fan filter unit having the same In a fan filter unit for filtering and continuously supplying clean air into a clean room, the fan filter unit includes a chemical filter for removing chemical contaminants contained in the air, a fan for sucking and blowing out the air, and a particle filter for re... | 01/22/2008 |
| 7320722 | Respiratory protection device that has rapid threaded clean air source attachment A personal respiratory protection device 10 that comprises a mask body 12 that has a structure 35 located on it for receiving a clean air supply source such as a filter cartridge 14. The clean air receiving structure 35 has a first... | 01/22/2008 |
| 7300484 | Blower having a carrying frame A blower has a carrying frame provided with a base plate. A fan with a fan housing is mounted on the carrying frame. The fan housing has an intake opening that faces the base plate and is spaced from the base plate. An intake gap is formed between the base plate and... | 11/27/2007 |
| 7294160 | Air cleaner The present invention comprises concerns a novel air cleaner having an inner mesh barrier. This inner mesh barrier has a plurality of openings, and is generally cylindrical, having an inner mesh barrier liner surface, and an inner mesh barrier outer surface. Further... | 11/13/2007 |
| 7276100 | Air purifier An air purifying device is provided for removing airborne particles. The device includes a housing including an air inlet and an air outlet. A fan is positioned within the housing for drawing air into the housing through the air inlet and expelling air through the a... | 10/02/2007 |
| 7258712 | Smoke evacuation system A smoke evacuating system for use during surgical procedures, particularly minimally invasive procedures involving the use of a laser or cautery at a surgical site having an associated higher than ambient pressure, wherein the system includes a filter with a site si... | 08/21/2007 |
| 7217307 | Dust collector with an invertible wind exhausting case A dust collector with an invertible wind exhausting case includes a wind exhausting case having an upper and lower cover, which is respectively provided with two threaded holes of the same size in two lateral sidewalls. Two bolts combine tightly the lower cover with... | 05/15/2007 |
| 7192462 | Engine air filter and sealing system An air induction system for an engine to remove contaminants from intake air prior to delivery to the engine. The system includes an assembly for filtering air which is mounted in advance of the engine, and a duct for delivering air from the assembly to the engine. ... | 03/20/2007 |
| 7179315 | Vertical-shaft air filtering device having high flow rate and two-way air intake structure A vertical-shaft air filtering device having high flow rate and two-way air intake structure includes an air filter having its annular filtering member provided thereon with a fixed annular cover which is provided with an auxiliary air intake and a sheet-shaped filt... | 02/20/2007 |
| 7172693 | Quick change filter and bracket with key system and universal key option A bracket system holds a filter(s) in quick-attach and quick-release fashion. Brackets are combined in modular fashion, with conduit between the brackets, to create a “bank” of filters easily changed in number, arrangement, and flow scheme. Top brackets and bott... | 02/06/2007 |
| 7159818 | Multi-spectral air inlet shield and associated inlet structure A multi-spectral shield and associated inlet structure is provided for reducing the signature of an air inlet port defined within an exterior wall of an aircraft, ship, or land-based vehicle across radar and infrared wavelengths. The multi-spectral inlet shield incl... | 01/09/2007 |
| 7160346 | Dust and dirt collecting unit for vacuum cleaner The present invention relates to a dust and dirt collecting unit for a vacuum cleaner capable of simultaneously performing a primary cyclonic dust collection and a secondary filter dust collection. According to the present invention, there is provided a dust and dir... | 01/09/2007 |
| 7135051 | Dirt cup filter with pre-filtration cap A dual-stage vacuum cleaner filter with a pre-filtration cap having pre-filtering screens. A base with an aperture and a filter media strip pleated in the shape of a frustocone can be mounted within the dirt cup of a handheld vacuum. A circular, planar gas impermeab... | 11/14/2006 |
| 7122066 | Air filter system An air filter system for use by airline passengers on commercial airlines and the like. The housing is configured to clamp to the gasper air supply nozzle of the airliner. The housing is configured to direct air from the air supply nozzle through the filter medium. ... | 10/17/2006 |
| 7090708 | Filter element for filtering a fluid stream A filter element for filtering a fluid stream, comprising a cylindrical support body, which is provided with openings and is sealed at one axial end, and a filter medium arranged on the support body. The filter medium is a strip material, which extends over approxim... | 08/15/2006 |
| 7081145 | Aerosol separator; and method An arrangement for separating a hydrophobic liquid phase from a gaseous stream includes a coalescer filter, a housing, a gas flow direction arrangement, and a liquid collection arrangement. The coalescer filter includes a non-woven media of fibers. The housing inclu... | 07/25/2006 |
| 7056364 | Securing seat for holding filtering cylinder of a dust collector A securing seat for holding filtering cylinder of a dust collector is disclosed. The securing seat includes a binding mount and a binding belt, and the middle section of the inner edge of the binding mount is protruded with an inverted L-shaped holding plate. The to... | 06/06/2006 |
| 7014674 | Biological safety cabinet A biological safety cabinet includes a work chamber having a contaminated air discharge opening, a fan enclosure above the work chamber, a conduit extending from the chamber air outlet to the top of the fan enclosure, a first HEPA filter in the top of the fan enclos... | 03/21/2006 |
| 7014685 | Filter element and mounting method The present invention relates to an apparatus for filtering a gas or liquid stream such as a natural gas stream. The apparatus includes a closed vessel having a longitudinally extending length, an initially open interior, an input port at one extent and an output po... | 03/21/2006 |
| 6977006 | Keyed system for connection of filter cartridge to filter holder Embodiments of a key system for filters and their connecting heads/holders are shown. The filter cartridge and its holder each have a keyed surface, one being a protruding “key” and one being a recessed “lock”. Cooperation of these keyed surfaces is required... | 12/20/2005 |
| 6969415 | Vent for and method of concealing and venting a septic system Disclosed are a vent disclosed for a septic system, including a conduit configured to vent gas therefrom, including a leg configured to conceal a portion of, and convey gas from, the conduit, and a method of concealing a conduit configured to vent gas from a septic ... | 11/29/2005 |
| 6968596 | Cyclone-type dust-collecting apparatus for vacuum cleaner A cyclone-type dust-collecting apparatus for a vacuum cleaner comprises a conically shaped grill assembly disposed at the air outflow port of a cyclone body. The grill assembly includes a grill portion and prevents reverse flow of dust and dirt from the cyclone body... | 11/29/2005 |
| 6962615 | Filter element, particularly for separating a liquid from a gas stream A filter element composed of a nonwoven filter web of metal fibers affixed to a support body, in which the metal fibers of the filter web form an unsintered composite having a porosity of at least 90%. Preferably the metal fibers have a diameter of at most 4 μm. | 11/08/2005 |
| 6955699 | Device for filtering the intake air of internal combustion engines A device for filtering the intake air of an internal combustion engine having an expansion box (110) with an opening (12) for the intake air to pass therethrough, has a filter fixed to the opening that includes a first tubular filtering element having ... | 10/18/2005 |
| 6896712 | Lateral-flow biohazard safety enclosure A biohazard safety enclosure or workstation particularly adapted for enclosing automated instrumentation includes a chamber defined by front, back, top, bottom, and opposed end walls; a HEPA filter across an air inlet opening into the chamber, and an airflow means t... | 05/24/2005 |
| 6884274 | High flow, one piece automotive air filter Air filter with a sidewall and inverted cone cap sections; a beveled crown unifying the sidewall with the cap to form a one-piece filter; a seat on the bottom of the wall section with seals for contact with a support; and a flange affixed to the cap to adjust contac... | 04/26/2005 |
| 6866695 | Filter assembly for air purifier An air purifying device is provided for removing airborne particles. The device includes a housing including an air inlet and an air outlet. A fan is positioned within the housing for drawing air into the housing through the air inlet and expelling air through the a... | 03/15/2005 |
| 6849100 | Fresh air ducts including downstream filters for clean rooms A fresh air duct is configured to direct fresh air filtered by an air conditioning system towards a clean room downstream from the fresh air duct, the fresh air having a first level of particle density. A separate particle filter in the fresh air duct, located downs... | 02/01/2005 |
| 6833023 | Air filter assembly A filter assembly includes a conical filter element sealingly clamped to a cylindrical base. A conical housing is releasably clamped to the base with spring clips in surrounding relation with the filter element to allow for efficient installation and removal of the ... | 12/21/2004 |
| 6793702 | Filter cartridge platform and filter cartridge for use on the platform A filter platform is provided for allowing attachment of an air filter unit thereto. The filter platform includes: a substantially hollow outer housing, the housing forming a chamber within the platform, the housing having a first opening at one end for engaging the... | 09/21/2004 |
| 6790251 | Skull-shaped air filter housing A skull-shaped air filter housing comprising a housing removably attached to a fitting. A jaw is hingedly attached along a lower edge of a face on the housing. The face has eye intake(s), a nose intake, and a jaw intake. When the jaw is open, air enters a housing ca... | 09/14/2004 |
| 6758873 | Aerosol separator and method An arrangement for separating a hydrophobic liquid phase from a gaseous stream includes a coalescer filter, a housing, a gas flow direction arrangement, and a liquid collection arrangement. The coalescer filter includes a non-woven media of fibers. The housing inclu... | 07/06/2004 |
