Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 5685977 | Swimming pool filter cover A swimming pool filter apparatus cover providing protection to a pool service technician servicing the filter apparatus, the cover forming a barrier between the technician and the filter apparatus. The filter apparatus is of the type having a central cyli... | 11/11/1997 |
| 5505156 | Windshield for boats A windshield for providing protection against wind and water spray for a driver and passengers in open boats of the type having a spaced apart driver's console and passenger's console, the windshield having a first and second panel operably attached to th... | 04/09/1996 |
| 5487194 | Device to restore water level in toilet bowl A device to restore the water level in a toilet bowl is disclosed wherein bleed water issued by the float actuated valve in a toilet tank reservoir is used to prime a syphon tube so that additional water from the toilet tank reservoir is shuttled down the... | 01/30/1996 |
| 5465432 | Device to secure toilet flush lever arm to effect a partial flush An improvement for a dual flush mechanism which permits a partial flush of a toilet in addition to the full flush. When the operator pushes the partial flush handle down, the partial flush mechanism lifts the flapper valve off the annular valve seat a sma... | 11/14/1995 |
| 5427146 | Linearly adjustable fluid damper A linearly adjustable fluid damper of the sliding plate adjustable orifice type damper system having a fixed plate with a plurality of specifically arranged hexagonal shaped apertures therethrough and a slidable adjustable plate also having a plurality of... | 06/27/1995 |
| 5424791 | Camera stabilization support A camera stabilizing support for steadying (either still or moving at a constant rate) a camera and/or camera and accessories by a photographer while taking pictures. The device includes a shoulder stock having an upper arm and lower arm which together su... | 06/13/1995 |
| 5392944 | Leaked water collection pan for evaporative cooler A collection pan for leaked waters from evaporative coolers is disclosed wherein a rectangularly shaped tray or pan resides underneath an evaporative cooler. The pan is characterized by four up extending sides at the outer perimeter of a flat rectangular ... | 02/28/1995 |
| 5368004 | Automobile supercharger utilizing flywheel A supercharger for automotive engines utilizing the automobile flywheel as a part of the air compressor means is disclosed wherein air compression type vanes are attached to the flywheel. A donut shaped plenum encompasses the flywheel with the attached va... | 11/29/1994 |
| 5329593 | Noise cancelling microphone A noise cancelling microphone for use in noisy environments is disclosed wherein noise entering the front portion of the microphone housing to impinge upon the microphone cartridge diaphragm is also permitted to enter proximate the rear portion of the mic... | 07/12/1994 |
| 5283640 | Three dimensional television camera system based on a spatial depth signal and receiver system therefor A three-dimensional television camera system based on a spatial depth signal and receiver system therefor is disclosed wherein a video depth signal is generated in spatial synchronization with the raster scan of a TV camera viewing a scene. The video dept... | 02/01/1994 |
| 5269835 | Baghouse floater purge system Apparatus and method for purging floaters in top inlet baghouse construction wherein the upper plenum of a baghouse compartment and the clean exhaust gases duct are operably connected with a purge duct, a controllable purge damper inserted therein. At ter... | 12/14/1993 |
| 5243659 | Motorcycle stereo audio system with vox intercom An improved motorcycle intercom communications system between the motorcycle driver and passenger providing for stereo of listening from a radio, cassette player, or the like in each of both right and left helmet speakers wherein intercom communications m... | 09/07/1993 |
| 5228144 | Water saving device for toilets A water saving device for toilets providing both partial flush and full flush capability is disclosed wherein for the partial flush, air is controllably removed from the interior cavity of a flapper valve to render the flapper valve non-buoyant to return ... | 07/20/1993 |
| 5226376 | Machine for laying agricultural plastic film An improvement in machines for laying agricultural plastic film is disclosed which provides means forcing the plastic film against the seed bed and inclined sides and bottom of oppositely situated furrows utilizing a forced air fan to blow air downwardly ... | 07/13/1993 |
| 5221991 | Device to secure binoculars to a tripod A device to secure binoculars to a tripod having a rectangularly shaped base plate of a durable material, a rectangularly shaped compressible resilient pad made of a high density closed cell foam material operably attached to the top side of the base, a h... | 06/22/1993 |
| 5218998 | Linearly adjustable A linearly adjustable fluid damper of the sliding plate adjustable orifice type damper system having a fixed flat plate with a plurality of specifically arranged trapezoidal shaped apertures therethrough, and a slideably adjustable flat plate also having ... | 06/15/1993 |
| 5216301 | Digital self-calibrating delay line and frequency multiplier A digital self-calibrating delay line is disclosed wherein in a chain of individual but identical time delay elements a calibrated signal running therethrough is compared with the subsequent input signal on each of the individual time delay elements until... | 06/01/1993 |
| 5178398 | Hunting broadhead for arrows A hunting broadhead for attachment to an arrow used in bow hunting of a game animal having two thin flat metal elongated blades juxtaposed each other pivotally secured in a slot situated in a rearwardly located tubular body. Each blade has a pointed first... | 01/12/1993 |
| 5159209 | Circuit to selectively process dip switches onto bus lines A circuit to selectively process dip switches onto bus lines in a computer or device utilizing digital logic circuits wherein the dip switches are operably connected to a changeable source of digital signals so that upon command at desired times, the outp... | 10/27/1992 |
| 5079843 | Hole cutter for ostomy adhesive wafers An adjustable size hole cutter for ostomy adhesive wafers is disclosed having firstly a cylindrical body adapted to hold a cutting blade, a cylindrical pilot protruding outward from the bottom circular face of the cylindrical body to reside in a preformed... | 01/14/1992 |
| 5077903 | Carpenter's pencil sharpener A carpenter's pencil sharpener for use in sharpening rectangularly shaped carpenter's pencils is disclosed wherein at the top of the housing the pencil sharpener is situated two rectangularly shaped openings juxtaposed to each other, the first a longitudi... | 01/07/1992 |
| 5074282 | Solar water heater A solar water heater absorber with controllable freeze damage is described, the absorber having removable heat absorbing panels attached on opposite sides to each riser, each panel having a flat portion to receive the sun's rays and a folded curved portio... | 12/24/1991 |
| 5071361 | Drapery guard A one piece drapery guard for attachment to an electrical wall outlet which serves to hold hanging drapes away from the outlet as a safety fire preventive measure is disclosed. The drapery guard has two major elements, the first being a holding flange ada... | 12/10/1991 |
| 5067642 | Shoulder holster with concealed supporting chest strap A shoulder holster is disclosed to be worn outside an officer's shirt operably attaching to a chest strap worn under the Officer's shirt without making a hole in the shirt. An annularly shaped shirt lock hub having a circular groove formed in the interior... | 11/26/1991 |
| 5067428 | Portable boat dock A portable boat dock consisting of a modified "H" shaped platform adapted to reside substantially underwater, the platform having attached to it two upwardly protruding arms with cradle members attached to engage opposite sides of a boat to be docked. The... | 11/26/1991 |
| 5068887 | Dental x-ray alignment device A dental x-ray alignment device is described for attachment to the extension tube of the x-ray unit. The device has a cylindrical conical frustum exterior shape with a central opening adapted to frictionally reside on the extension tube. An annularly shap... | 11/26/1991 |
| 5056397 | Fixed fingering device for fretted stringed musical instrument An inventive fixed fingering device adapted to secure a string of a guitar or other fretted stringed instrument at selected fret positions in order to quickly and easily vary the length of the string available for vibration to change the pitch when the st... | 10/15/1991 |
| 5046744 | Hunting point for arrows A hunting point for attachment to arrows used in bow hunting having two thin flat metal blades juxtaposed each other held together by a rearwardly located tubular body, each blade having a sharpened projection first end adapted to precede the arrow in fli... | 09/10/1991 |
| 5046724 | Punching device for boxers A punching device for boxers to be used simultaneously by spaced apart facing boxers, the punching device connected to the floor with an extension coil spring attached to an upper post, the upper post then having oppositely situated outwardly extending pu... | 09/10/1991 |
| 5042270 | Evaporative cooler with increased pad area An evaporative cooler is disclosed wherein at the four corners of the usual cube shaped cooler structure is added four outwardly protruding projections, each of the projections having louver openings on both its sides, as well as on the four sides of the ... | 08/27/1991 |
| 5040624 | Seal assembly for roller cutter drill bit having a pressure balanced lubrication system A seal assembly (46) for a rotary drill bit (10) having a pressure balanced lubrication system is mounted in a pocket (48) between a journal (16) and a roller cutter (18). The seal assembly (46) has a pair of rigid seal rings (50,52) in sliding sealing co... | 08/20/1991 |
| 5033139 | Device to secure top sheet of bedding A device to secure the top sheet of bedding from being accidently pulsed out at the foot of the bed is disclosed wherein an elongated piece of plastic material is provided for placement between the mattress and the box springs of a bed wherein the end of ... | 07/23/1991 |
| 5025582 | External safety for handgun An external safety for application to handguns which effectively blocks rearward travel of the trigger to the point where the handgun is discharged, the external safety consisting of a trigger block adapted to be pivoted into the path of the trigger, and ... | 06/25/1991 |
| 5010593 | Decorative necktie knot cover A decorative necktie knot cover is disclosed adapted to be easily placed encompassing a necktie knot and removal therefrom, the decorative cover having a generally triangularly shaped front face with side panels on two of the three sides, the side panels ... | 04/30/1991 |
| 4997224 | Compact disc removal tool A compact disc removal tool for removing a compact disc from holding tabs in its carrying case, for transporting the disc to a compact disc player machine, and for replacement of the disc in its carrying case. The tool consists of a pair of longitudinally... | 03/05/1991 |
| 4979586 | Acoustically shielded motorcycle helmet speaker enclosure An acoustically shielded speaker enclosure for use in the ear pockets of motorcycle helmets is disclosed wherein parasitic sound waves emitted from the rear side of an enclosed audio loudspeaker are prevented from entering the motorcycle rider's ear and f... | 12/25/1990 |
| 4977975 | Vented motorcycle helmet speaker enclosure A vented speaker enclosure for use in the ear pockets of motorcycle helmets is disclosed which carries off parasitic sound waves emitted from the rear side of an enclosed audio loudspeaker in order that the parasitic sound waves not be allowed to enter th... | 12/18/1990 |
| 4957263 | Universal cup and saucer display A universal cup and saucer display is detailed and described having a pair of spaced apart, parallel elongated legs, attached by a plurality of cross members, the legs having decorative designs at each end. The bottom portion of the decorative designs pro... | 09/18/1990 |
| 4940098 | Reverse circulation drill rod A reverse circulation drill rod of the dual tube type having a pin and box at opposite ends with a floating inner tube concentrically situated, the inner tube permitted longitudinal freedom of movement. A plurality of inwardly protruding radial directed l... | 07/10/1990 |
| 4927139 | Therapeutic back rest A therapeutic back rest is described consisting of two semi-circular or half round steel supports, standing upright and spaced apart, with their ends resting upon the ground level. Connecting the two round supports at opposite ends are cross bars near the... | 05/22/1990 |
