Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 6478198 | Cone-shaped aerosol can spray nozzle A cone-shaped nozzle for an aerosol spray can is disclosed. The nozzle preferably has a top end, or tip, and an opposing end, or stem, that removably connects to the can. Through the nozzle from the top center of the tip to the bottom center of the prefer... | 11/12/2002 |
| 6470886 | Continuous positive airway pressure headgear The present invention is a CPAP Headgear for assisting in the treatment of sleep apnea. The present invention uses a standard CPAP respiratory mask with air supplied under pressure by an air blower or other source. The present invention generally includes... | 10/29/2002 |
| 6436259 | Mercury selective electrode The present invention is an apparatus for laboratory and field use in detecting and measuring Hg+ and Hg2+ in sample. A selective mercury binding agent, such as a chelating agent or clathrating agent, is covalently bound in a copolym... | 08/20/2002 |
| 6435495 | Back-up clamp component A back-up clamp component for use in a back-up clamp and adapted to fit with other sections of the back up clamp, the component carrying a number of shoes which can be moved radially inwardly and outwardly, each shoe being connected to a respective piston... | 08/20/2002 |
| 6402830 | Lightweight concrete composition The invention is a lightweight, economical and durable concrete which is easily manufactured from commonly available materials, and its method of manufacture. The concrete composition comprises cement, perlite, pumice and water. The cement is common Portl... | 06/11/2002 |
| 6398100 | Back-up clamp A back-up clamp suitable for backing up a weld to be formed between adjacent pipe lengths in a pipeline, the clamp having a rigid clamp body, at least one set of clamping members mounted upon the clamp body, a set of back-up shoes mounted upon the clamp b... | 06/04/2002 |
| 6373382 | Bicycle theft protection system Embodiments of an alarm system are described, which may be mounted or built-in to a bicycle or other device which is in need of anti-theft protection. A loud alarm is connected to or mounted in the protected device, and is operatively connected to either ... | 04/16/2002 |
| 6367420 | Apparatus for preventing scattered cat litter An apparatus for preventing litter from being scattered upon the floor outside the litter box and beyond, whether strewn by the cat during or after using the litter box, or by the owner when cleaning the litter box. The present invention comprises an encl... | 04/09/2002 |
| 6346662 | Ergonomic pick for stringed instrument Embodiments of an ergonomic stringed instrument pick are shown and described. The pick includes curved or depressed surfaces generally conforming to the shape of the thumb and index finger that grasp the pick. Preferably, the pick includes a depressed are... | 02/12/2002 |
| 6334876 | Safety suction valve The present invention describes a safety suction valve that releasably secures a residual limb to an artificial limb. The safety suction valve synchronously actuates a latch mechanism and a valve mechanism, thereby providing superior retention of a residu... | 01/01/2002 |
| 6330949 | Hanger storage system Embodiments of a hanger system are shown and described, each embodiment including a support member and at least one looped cord hanging from the support member. The looped cord includes a cleat or other adjustable fastener for adjusting the diameter of th... | 12/18/2001 |
| 6325154 | Horse owner's and farrier's stand An adjustable farrier's stand includes a polyethylene base formed having a large generally flat base and a narrow truncated conical upright receiving portion centrally protruding from the base, a support upright configured to be slidably held within the u... | 12/04/2001 |
| 6322229 | Backlighting for computer keyboard Embodiments of a peripheral backlighting system for keyboards are shown and described, which include one or more light-emitting panels exterior to the keyswitches of the keyboard. The panels are preferably electroluminescent material and surround at least... | 11/27/2001 |
| 6322161 | Apparatus and methods for automatic engagement and locking of vehicle air parking brake The present invention is a safety-enhancing automatic air parking brake actuator system that automatically actuators the air brakes in an engaged condition when one or more dangerous conditions exist at various stations around/in the vehicle or equipment.... | 11/27/2001 |
| 6308966 | Ski vehicle brake and steering system A braking and steering mechanism that is located near, but behind the steering pivot point of a runner of a ski vehicle. In a conventional snowmobile, for example, the steering pivot point is near the middle of the longitudinal axis of the runner, and, he... | 10/30/2001 |
| 6308474 | Door and doorway shield Embodiments of a door and doorway shield system are shown and described, each including at least one hook for hanging or gripping onto a portion of the door or the doorway. The shield preferably hangs on the door by a J-shaped hook portion that extends su... | 10/30/2001 |
| 6282835 | Flexible plant protector with vertical tubes connected by an annular ring This invention discloses generally enclosure structures for protecting plants. More specifically, this invention discloses a method and enclosure for thermally protecting plants from extreme temperatures and physically protecting plants from wind and othe... | 09/04/2001 |
| 6201314 | Shoe sole with liquid-powered electrical generator Various embodiments are described of a liquid-powered dynamometric generator built into a shoe, which has at least two layers as part of its sole. The first or lower layer of the sole is a pad formed of an elastomeric material which contains a liquid with... | 03/13/2001 |
| 6196765 | Inhibiting acid mine drainage by displacing oxygen in rock heap A process for treating earth materials such as rock heaps to prevent acid rock drainage therefrom is disclosed. First, the oxygen concentration in the gas-phase of the rock heap is decreased, that is, displaced and/or depleted. This first step may be acco... | 03/06/2001 |
| 6193258 | Swiveling trailer hitch alignment and lifting device with multiple pivoting points The present invention is a device for aligning the trailer hitch ball on the towing vehicle, and for lifting the trailer hitch on and off the ball. The device comprises a swiveling vertical post assembly in close proximity to the hitch ball. The swiveling... | 02/27/2001 |
| 6192835 | Hands-free pet leash system Embodiments of a hands-free leash system are described, which include quick-connect/disconnect fasteners to attach a belt around a person's waist, the belt to a leash, and the leash to a collar adapter. The leash system also includes a second attachment p... | 02/27/2001 |
| 6191685 | Bicycle theft protection system Embodiments of an alarm system are described, which may be mounted or built-in to a bicycle or other device which is in need of anti-theft protection. A loud alarm is connected to or mounted in the protected device, and is operatively connected to either ... | 02/20/2001 |
| 6189629 | Lateral jet drilling system In the field of drilling lateral channels from the cased bore of an oil well, a system is presented whereby a number of lateral channels can be drilled through the casing and out a distance into the formation with no requirement to move or raise the later... | 02/20/2001 |
| 6186875 | Bowling ball surfacing machine A machine for lapping bowling balls and, thus, re-rounding, smoothing, and cleaning the balls. The machine is comprised of three concave abrasion blocks with drive motors, adjustable mounting brackets attached to an adjustable support table, a catch basin... | 02/13/2001 |
| 6173539 | Metal memorial monument markers and method of making the same The present invention is a metal memorial marker and a method of making the same. The invented marker is made of metal, preferably 1/8" to 1/2" thick, preferably with steel-chromium alloys, such as stainless steel, or a non-ferrous metals, such as aluminu... | 01/16/2001 |
| 6171098 | Rodent exterminating apparatus The present portable exterminating apparatus uses an ignite charge of gas to produce both concussion and heat within the burrow of a rodent, along with residual toxic fumes, all contributing to rodent extermination. The apparatus includes a barrel, an inj... | 01/09/2001 |
| 6164052 | Retractable hay and bean fluffer The invented fluffer is a retractable hay and bean agricultural design for use in fluffing hay, bean and other crops. The retractable fluffer comprises: a pickup assembly 40 for fluffing hay or beans, the pickup assembly 40 is attached to and supported by... | 12/26/2000 |
| 6161985 | Manhole collar assembly Embodiments of apparatus and a method of raising a manhole ring during construction or repair of roads are shown and described. The apparatus and method include formation of a manhole collar by use of a form that rests on a manhole cone and trimming the f... | 12/19/2000 |
| 6152675 | Fold-up hoist for vehicle receiver This apparatus relates to a portable, fold-up hoist for attachment to a vehicle via a receiver hitch. The hoist has a tongue member for insertion into and securement by the hitch. Pivotally connected to the tongue member is a telescoping vertical support ... | 11/28/2000 |
| 6151811 | Retractable assembly for trenchers and walk-behind power units The present invention is a walk-behind power unit stabilizing system for use on portable trenchers and other equipment. The preferred application comprises a retractable wheel assembly mounted at the rear of a trencher where the invented device is allowed... | 11/28/2000 |
| 6137073 | Enrichment method for radioactive isotopes In the method of this invention, a radioactive isotope, for example, U238, is placed within a region. High-energy electrons or high-energy photons in the form of X-rays, gamma rays, or laser excitation are applied to the region. This energy is ... | 10/24/2000 |
| 6119356 | Parallelogram tool for locating stairway and stair landing railings Embodiments of a stairway or walkway handrail construction tool are shown and described, each embodiment comprising a frame of four outer members. The members are pivotally joined at or near each end and can thus be moved to form a square or rectangle and... | 09/19/2000 |
| 6118204 | Layered metal foil semiconductor power device The present invention is a power cell for directly converting ionizing radiation into electrical energy. The invented isotopic electric converter provides an electrical power source that includes an electronegative material layered in a semiconductor, to ... | 09/12/2000 |
| 6111477 | Microwave phase shifter including a reflective phase shift stage and a frequency multiplication stage A phase shifter/modulator which provides linear phase control of a microwave continuous wave carrier signal. Linear phase shift range in excess of 360 degrees is provided as a result of linear variation in control voltage. A reference signal, at a subharm... | 08/29/2000 |
| 6109211 | Apparatus for preventing scattered cat litter An apparatus for preventing litter from being scattered upon the floor outside the litter box and beyond, whether strewn by the cat during or after using the litter box, or by the owner when cleaning the litter box. The present invention comprises an encl... | 08/29/2000 |
| 6086013 | A-frame spool caddy A frame that folds to a compact, folded, generally flat shape, and that unfolds to an A-frame with spool-receiving bars hung preferably on both the front side frame and back side frame of the A-frame. The spool-receiving bars are removably received in the... | 07/11/2000 |
| 6065372 | Power wrench for drill pipe A motorized wrench for spinning together (or apart) lengths of drill pipe as typically used in water well drilling. A single motor is connected by a pair of drive chains to two toothed drive rollers to spin the rollers and, thus, spin drill pipe engaged a... | 05/23/2000 |
| 6064426 | Video magnification system Embodiments of a vision aid video magnification system for low-vision persons are shown and described. The system includes a balanced arm with a first portion that swivels on a base, a second portion connected to the enclosed camera, and an elbow between ... | 05/16/2000 |
| 6049905 | Personal protection wrist shield The invention is a sturdy shield with a generally U-shaped curved piece adapted to fit for several inches along the underside/little finger side/ulna side of the wrist. Near the middle of the U-shaped curved piece is a generally perpendicular ridge, or st... | 04/18/2000 |
| 6047623 | Hole punch quick-change die assembly with pin strap and positioning system Embodiments of an punch machine and a quick-change die assembly are shown and described. The die assembly may be quickly installed and removed from the punch machine, without bolting or unbolting of either machine housing or the die assembly itself. The d... | 04/11/2000 |
