Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6780292 | Electrolytic treatment apparatus having replaceable and interchangeable electrode reactor cartridges therefor An electrolytic treatment apparatus includes a substantially hollow tubular outer vessel housing closed at its bottom end and provided with a liquid inlet and liquid outlet adjacent its bottom and top ends. A self-contained reactor cartridge unit integrates the vess... | 08/24/2004 |
| 6732724 | Portable ball throwing apparatus The ball throwing apparatus of this invention is formed of a flat main frame plate which mounts a rotary ball throwing wheel and a confronting pad spaced from the wheel slightly less than the diameter of a ball to be thrown. The pad is mounted for adjusting said spa... | 05/11/2004 |
| 6671930 | Adjustable tool mount apparatus and specialized tool handle thereof A tool mount assembly is provided for attachment to the end of an extension pole for pivotal movement of the body of the tool mount assembly on an axis that is substantially perpendicular to the axial line of extension of the extension pole, the body furt... | 01/06/2004 |
| 6651806 | Sealless slat-type reciprocating conveyor The sealless slat-type reciprocating conveyor of this invention includes on one side edge of each slat an upwardly extending inverted U-shape portion and on the opposite side edge an upwardly extending substantially straight flange portion configured for ... | 11/25/2003 |
| 6636606 | Keypad button guard A keypad button guard member is provided for a keypad type device, the button guard member arranged to provide a raised, encircling edging which may be releasably applied to a keypad device to encircle and provide a protective barrier about one or more se... | 10/21/2003 |
| 6631709 | Archery bowstring back tension release An archery bowstring release includes a hand grip having a forwardly extending post pivotally mounting a bowstring hook member releasably engaged by a locking mechanism that serves to adjust the position of the hook on the hook member for releasing a bows... | 10/14/2003 |
| 6352480 | Sports practice net A sports practice net assembly for stopping the flight of a projectile such as a golf ball, comprises a pair of side frame members with a central frame member disposed between them. The side frame members are preferably formed as closed loops. The central... | 03/05/2002 |
| 6325091 | Water distribution apparatus for multiple sewer drain trap primer systems An apparatus for distributing priming water equally to a multiplicity of sewer drain traps includes a hollow body member sealed with a top cap having a water inlet therethrough, the bottom of the body member provided with outlet fittings for connecting to... | 12/04/2001 |
| 6272810 | Method and system for providing foundation and perimeter stem walls for mobile homes A method and system for providing the foundation pad and stem wall structure for mobile homes includes the steps of excavating a building site to form a substantially level building area; erecting simple concrete formwork to define and contain the pouring... | 08/14/2001 |
| 6257078 | Bearing adjustment and monitoring system A bearing adjustment and monitoring system is provided for a bearing mounted between a hub and a spindle, one of which is rotatable relative to the other and one of which has a threaded end section with traversing keyway and the other of which has an abut... | 07/10/2001 |
| 6178767 | Compact rotary evaporative cooler The compact rotary evaporative cooler of this invention includes a case containing a powered rotor mounting a partition that divides the case longitudinally into a wetted chamber and a nonwetted chamber. An annular array of elongated Perkins tubes is supp... | 01/30/2001 |
| 6164271 | Ball throwing machine and electrical control therefor The ball throwing machine of this invention includes a vertical base plate mounting a wheel support plate for pivotal movement about a pivot axis which defines an arcuate slot in the base plate through which a clamp bolt extends from the wheel support pla... | 12/26/2000 |
| 6142310 | Magnetic sweeper The magnetic sweeper of this invention includes a laterally elongated hollow body of non-magnetic material having an open top and containing a pair of laterally spaced permanent magnets. The elongated side walls of the body have outwardly extending flange... | 11/07/2000 |
| 6131697 | Rappelling rope controller The rappelling rope controller of this invention includes a U-shaped rod supporting three bars of circular cross section movable along the arms of the rod, enlarged abutments on the free ends of the rod preventing removal of the bars. A rappelling rope ma... | 10/17/2000 |
| 6131196 | Air capsule cushion padding member for protective joint and safety pads A hard shell safety knee pad is shown as having a cushion padding member formed of a plurality of layers of bubble cushioning material retained together against separation whereby to more comfortably distribute and support a wearer's weight and more effec... | 10/17/2000 |
| 6102462 | Mattress and sheet material carrying apparatus A carrier for the two-person transporting of beds, sheet material such as plywood or drywall, and innumerable other elongated, bulky loads is formed of a main strap loop arranged to freely encircle a load to be transported in its longitudinal direction, t... | 08/15/2000 |
| 6102135 | Portable core sampler A portable core sampler includes a portable electric drill having an output rotary shaft connected detachably to a coupler shaft that supports a water swivel which connects a source of water to an axial water delivery passageway in the coupler shaft. The ... | 08/15/2000 |
| 6053129 | Animal walking leash apparatus An improved walking leash apparatus for dogs and other animals utilizes a length of elastic, stretchable, bungee-type cord anchored to and carried within a substantially rigid, hollow tube member having a hand grip portion with a safety wrist snap, the fo... | 04/25/2000 |
| 6024653 | Heel-to-toe balanced golf club head A golf club head is provided with a forwardly facing ball-striking face and a shaft-anchoring bore having a longitudinal axis disposed forwardly of the ball-striking face. A plane located on the longitudinal axis and extending perpendicular to the ball-st... | 02/15/2000 |
| 5945031 | Freeze resistant, Perkins tube type heat exchanger A freeze resistant aqueous coolant solution for use in Perkins tube type heat exchangers is formed of one or more metal salts selected from the alkali metals of Group IA and the alkaline earth metals of Group IIA of the Periodic Table. Depending upon the ... | 08/31/1999 |
| 5915802 | Automatic teller machine (ATM) cassette security system An automatic teller machine (ATM) cassette security system divides the interior compartment of an automatic teller machine into a service-related area and a cash-related security area. A lock bar positioned to prevent access to cash cassettes establishes ... | 06/29/1999 |
| 5890869 | Wheelchair tilting apparatus An apparatus is provided for receiving a wheelchair and its seated occupant and tilting the wheelchair rearwardly into a position in which the seated occupant is disposed in a substantially reclined, supported condition for therapeutic and other advantage... | 04/06/1999 |
| 5850686 | Apparatus for making wall frame structures An apparatus for the high-volume manufacture of assembled wall frame structures for use in the residential and commercial building industry is arranged to receive and support a pair of laterally spaced apart top and bottom plate members and move them long... | 12/22/1998 |
| 5850966 | Deposit retrieval and transport security apparatus A deposit collecting and transporting security apparatus provides a deposit container arranged to be lockably mounted for receiving and collecting deposits from a depository outfeed apparatus. In order to remove the container for transport to a deposit pr... | 12/22/1998 |
| 5846167 | Swimming exercise method and tether therefor A swimming exercising and training tether device includes an elongated tether line connected at one end preferably through a coil spring or other elastic, shock-absorbing member, to an anchor adjacent a wall of a swimming pool and at the opposite end deta... | 12/08/1998 |
| 5846299 | Recovering water soluble, volatile, organic compounds from bakery and other plant emissions Recovery of ethanol from the exhaust stacks of a bread-baking oven is achieved by passing the stack emissions through an adiabatic humidifier where the emissions are humidified to near saturation. The unevaporated water content of the humidifier is collec... | 12/08/1998 |
| 4921268 | Transport dolly An object or vehicle transporting dolly supporting one elevated object end comprising of a pair of mounting pads and transporting wheels each connected to a pair of vertically pivoting control arms which have also a vertical pivot connection to a center p... | 05/01/1990 |
| 4838236 | Compound archery bow with adjustable draw length and pull weight The draw length and pull weight of a compound archery bow may be varied over a desired range by changing the positions of anchoring the ends of the bow string and power cable on the cam elements at the outer ends of the bow limbs. Each cam element is prov... | 06/13/1989 |
| 4825778 | Extensible rail car A rail car is adjustable in length to accommodate the mounting thereon of cargo containers of various lengths and widths, such as the presently employed 20 foot, 40 foot, 45 foot and 48 foot lengths and 96 and 102 inch widths. Length adjustment is effecte... | 05/02/1989 |
| 4815290 | Heat recovery system A heat recovery system utilizing the principle of the Stirling engine includes a gas-containing chamber communicating through control valves alternately with hot and cool gas heat exchangers supplied with waste or other source heat fluid and coolant fluid... | 03/28/1989 |
| 4811530 | Portable platform A portable platform is formed of a plurality of elongated floor support members interconnected longitudinally and spaced apart laterally, the support members having a plurality of longitudinally spaced cross members, the confronting cross members being se... | 03/14/1989 |
| 4792084 | Paperboard container with angled corners A paperboard carton is formed from a single blank of generally rectangular shape which is cut and scored along lines which provide corner panels at the four corners and middle panels separated from the corner panels along one pair of opposite sides of the... | 12/20/1988 |
| 4788777 | Dry kiln wood spacing sticker A sticker for spacing wood products apart vertically in a dry kiln is formed as an elongated, hollow, internally reinforced extruded rectangular profile of synthetic resin reinforced with glass fiber. The internal reinforcement is provided by one or more ... | 12/06/1988 |
| 4786040 | Method and apparatus for feeding envelopes to a printing press A vertical stack of envelopes is produced adjacent the infeed end of a printing press, for removal one at a time by envelope infeed mechanism of the printing press, the stack being maintained by adding envelopes one at a time to the bottom end of the stac... | 11/22/1988 |
| 4782914 | Safety guard rail for scaffolding A conventional construction scaffolding comprises sections formed of a pair of laterally spaced apart, vertically extending upright members secured in proper position by a cross brace assembly. An adjustable safety guard rail assembly therefor comprises a... | 11/08/1988 |
| 4771955 | Pepper mill closure A pepper mill is provided with an end closure for releasably closing the outfeed opening of the pepper mill against unintentional discharge of ground pepper therefrom. The closure apparatus of this invention is configured as a mechanically operated shield... | 09/20/1988 |
| 4771137 | Electric fence wire insulator An electric fence wire insulator is formed as an integral, one-piece body of non-conductive synthetic resin and includes a transverse spark shield from which extends in one direction a pair of laterally spaced main legs terminating in a pair of laterally ... | 09/13/1988 |
| 4757614 | Archery bow sight An archery bow sight includes a plate arranged for removable attachment to the handle portion of an archery bow and supporting a longitudinally extendable mounting arm which mounts at its forward end a horizontally extending support to which a vertically ... | 07/19/1988 |
| 4745801 | Groundwater sampling system A multi-level groundwater sampling system utilizes a multiplicity of small diameter flexible sampling tubes terminating at their lower ends at different depths in a single small diameter drill hole, the lower end section of each sampling tube being perfor... | 05/24/1988 |
| 4743023 | Maze game A multi-dimensional ball-type maze puzzle game comprises a plurality of individual, maze containing modules secured together to form a vertical stack, aligned openings being provided at selected points through the modules for interconnecting the interiors... | 05/10/1988 |
