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An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.
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| Number | Title | Issue Date |
| 8161975 | Dual mode impulse noise protecting earplug (D-182) A two piece dual mode earplug including an integrally molded elongated member having a nose end and an open rear end and a channel extending through. An integrally molded insert member is formed with a base portion and a rod portion and with the rod portion seated w... | 04/24/2012 |
| 8109359 | Ear protector The invention describes an ear protector (1) comprising a resilient band (2), the free ends of which each have arranged thereon an earplug (4). The band (2) includes a first area (2a) whose center line (2a′) ... | 02/07/2012 |
| D647197 | Flat fold respirator mask | 10/18/2011 |
| D645956 | Half mask filter respirator | 09/27/2011 |
| D624999 | Earplug | 10/05/2010 |
| D618333 | Earplug insert for dual mode operation | 06/22/2010 |
| D614048 | Container for earplugs | 04/20/2010 |
| D609803 | Din cap front cover for use with a filter respirator mask | 02/09/2010 |
| D604834 | Cartridge lid for use with a filter respirator mask | 11/24/2009 |
| D597200 | Half mask face piece for use with a filter respirator | 07/28/2009 |
| D589607 | Molded lens for use with a filter respirator | 03/31/2009 |
| D582547 | Molded flange for use with a filter respirator | 12/09/2008 |
| D577816 | Pre-filter lid for use with a filter respirator mask | 09/30/2008 |
| D536089 | Earplug | 01/30/2007 |
| D512141 | Earplug | 11/29/2005 |
| 6571797 | Single strap respirator mask with head harness A single strap respirator mask with a head harness, including a respirator mask, which has a cup shape to fit over the face of a user. The mask includes a pair of ear portions located at and extending from opposite sites of the mask and each ear portion t... | 06/03/2003 |
| 6403197 | Filter material A filter material laid in folds in a plurality of folds, characterized in that the folds are provided with at least one bending portion having a bending resistance moment that is reduced in comparison with the remaining portions and a method and apparatus... | 06/11/2002 |
| 6364978 | Method and apparatus for producing a filter material A method and an apparatus for producing a thermoplastic filter material laid in folds, with the folds fixed in close vicinity. The thermoplastic filter material which has been heated for forming the folds is accumulated within a cooling path such that the... | 04/02/2002 |
| 6353938 | Sound attenuating earmuff An earmuff for hearing protection of the ear of a wearer, including an outer cup of rigid plastic material. An inner cup of foam material is supported by the outer cup, and a cushion is attached to the outer cup for lying around the ear of the wearer. The... | 03/12/2002 |
| 6298849 | Respirator mask with snap in filter cartridge A respirator mask, including a body member of a thin rigid plastic material and having an inner surface conforming to the face of a user. The body member includes as an inner surface and at least one opening to receive a filter cartridge. A first over-mol... | 10/09/2001 |
| 6047698 | Unidirectional fluid valve A unidirectional fluid valve for use with a respirator includes a flexible flap initially formed as a flat resilient member. A valve body has a flat valve seat to support the flexible flap. The flexible flap is contoured to make contact with the valve sea... | 04/11/2000 |
| 5957136 | Earplug An earplug composed of a resilient polymeric material including a first hollow member having a closed end and an open end and with the closed end having a rounded cone shaped configuration. At least one flange member extending from the first hollow member... | 09/28/1999 |
| 5829062 | Headband with dual material construction for supporting ear protectors A headband ear protector apparatus including a pair of ear protectors and a resilient head band supporting, at opposite ends of the headband, the ear protectors. This forms a band which positions the ear protectors to lie by the opposite ears of a person.... | 11/03/1998 |
| 5749373 | Headband with break-away cord attachment A headband ear protector apparatus with break-away cord attachment including a pair of ear protectors, a resilient headband to form a band which positions the ear protectors to lie by the opposite sides of the head of a person. The headband is formed of a... | 05/12/1998 |
| 5741744 | Thermoplastic thermoformable composite material and method of forming such material A thermoplastic thermoformable composite material for shaping and stretching into a desired form without voids and holes, including a core formed by at least one layer of chopped fibers enveloped and impregnated by thermoplastic material to form a fabric ... | 04/21/1998 |
| 5736041 | Filter element A filter element for use in a filter holder having a sealing surface and method of making a filter. The filter being made of a folded material of manufacture having a circumferential sealing rim and having a spacer to keep open the folded areas. The space... | 04/07/1998 |
| 4870368 | Spiral line accelerator A casing has an entrance, an exit, linearly disposed, substantially parallel portions and curved portions joining the linear portions to define a spiral configuration. Electron pulses entering the casing are accelerated in the linear portions of the casin... | 09/26/1989 |
| 4868548 | Clock synchronization system An apparatus and method of synchronizing data systems having different clock frequencies at a particular address. A first device receives first and second parallel data and outputs first serial data at a first particular clock frequency. A second device o... | 09/19/1989 |
| 4863798 | Refractory composite material and method of making such material A porous substrate is formed from discrete elements preferably anisotropic and permeable to oxygen and preferably having a first coefficient of thermal expansion. A pyrolytic material permeable to oxygen may be deposited in a thin layer on the discrete el... | 09/05/1989 |
| 4860011 | Flash analog-to-digital converter First and second reference voltages of different value are introduced to opposite ends of a first line disposed on an IC chip and made from a suitable material (e.g. ion-implanted polysilicon). An input voltage having a value between such reference voltag... | 08/22/1989 |
| 4857929 | Apparatus for converting data between analog and digital values Sub-sets of switches are provided each having a number of switches directly related to an individual bit in a binary coded input word. Signals representing the individual bits are introduced to the switches in the different sub-sets to obtain switch condu... | 08/15/1989 |
| 4850386 | Soil Moisture monitor A monitor or sensor for sensing the moisture content of a surrounding medium comprises two electrodes connected in a detector circuit for detecting the impedance between them and producing an output signal proportional to the impedance. At least one of th... | 07/25/1989 |
| 4847569 | Automatic calibration system for a voltage control oscillator A signal generator including a calibration circuit for providing periodic recalibration of the generator, including a reference frequency source for producing a fixed frequency signal. A voltage controlled oscillator (VCO) for producing a variable frequen... | 07/11/1989 |
| 4847621 | Apparatus for converting data between digital and analog values A converter converts to an analog value a plurality of digital signals each having characteristics representing an individual digital value. A plurality of switches are disposed in sets with the switches in each set being responsive to an individual one o... | 07/11/1989 |
| 4842233 | Lifting mechanism A lifting mechanism provides double action movement of a ram member supported on a platform along a particular axis between a first lower position and a second higher position. The lifting mechanism includes the following: A motor having a drive shaft ext... | 06/27/1989 |
| 4841252 | System for compensating for offset voltages in comparators A variable input voltage is periodically introduced in first time periods to an amplifier such as a differential amplifier to obtain an output from the amplifier. The amplifier may receive a reference voltage at one input terminal and the input voltage at... | 06/20/1989 |
| 4839998 | Abrasive apparatus An abrasive disc includes a sheet having abrasive particles on one surface of the sheet. A fastener has a flat flange portion which is adhered to the sheet. Coupling portions on the fastener extend in a transverse direction from the flange portion and leg... | 06/20/1989 |
| 4838679 | Apparatus for, and method of, examining eyes This invention enables comprehensive examinations of the front parts of human eyes, reliably provides precise and easily interpretable pictorial representations of the examination field, enables gentle examinations of short duration and is comparatively s... | 06/13/1989 |
| 4835912 | Abrasive wheel A support disc preferably has an annular periphery, a central opening and a pair of substantially parallel side surfaces. Abrasive packs are disposed on the periphery of the disc in spaced relationship to one another. Each pack is formed from a stack of t... | 06/06/1989 |
| 4831282 | CMOS input circuit A digital value represented by first and second pluralities of signals is converted into an analog value represented by an analog signal. The converter and the associated circuitry described above are preferably disposed on an integrated circuit chip form... | 05/16/1989 |
