...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7314095 | Gardening tool A gardening tool extracts a weed along with a plug of soil. A plurality of blades are circumferentially spaced about an axis of a shaft and extend downwardly beyond the lower end of the shaft for insertion into soil about the roots. Each blade includes a trailing ed... | 01/01/2008 |
| 7299719 | Shovel plow apparatus The novel, hand-held apparatus aids in the removal of old shingles from the roofs of structures. The tool is comprised of a handle; an elongated pole member; and a set of two tines affixed together at an angle which is then mounted onto said pole member. The set of ... | 11/27/2007 |
| 7290311 | Implements with handles and working ends and method of use thereof Implements including handles and working ends and product lines thereof are described. The implements are typically cleaning implements, such as mops mad brooms, but may be garden implements such as hoes and rakes. Various methods for using such implements are descr... | 11/06/2007 |
| 7121599 | Hand-operated tool with central step A hand-operated tool includes a tool head having a central longitudinal axis, a handle extending from the tool head, a connector securing the handle to the tool head, and a central step at an upper end of the tool head and at the central longitudinal axis. A length ... | 10/17/2006 |
| 7121356 | Tools and methods for retrieving buried coins and other treasure A “sod saver” tool for digging to acquire an object buried in the ground, and a non-metallic scraping tool utilized when carefully examining the soil. The sod saver tool includes a main cylindrical body rotated about its longitudinal axis for digging a substanti... | 10/17/2006 |
| 7117954 | Weed puller A weed puller that comprises a plurality of prongs positioned about an axis, an anvil plate, and a moveable mass adapted to be driven into the anvil plate so as to transmit a force through the anvil plate to the prongs where the force has a substantial component in ... | 10/10/2006 |
| 6726264 | Non-invasive self-cleaning weed extractor tool A garden and lawn weed extractor tool enables removal of the weed with minimal invasiveness to the soil or turf. The weed extractor tool utilizes a foot-operated depression feature to insert the tool blade into the soil, at an angle to horizontal near the weed root.... | 04/27/2004 |
| 6513301 | Method of and instrument or arrangement for installing thermal insulation sheets in confined areas A thermal insulation sheet is maneuvered into position, especially in closely confined corners in an attic, by a tool having a prong which is inserted into the sheet, and a pusher surface which contacts the sheet to limit the depth of insertion of the pro... | 02/04/2003 |
| 6474267 | Pelletized animal bedding and process and tool for sifting manure therefrom Animal manure is removed from a bedding material consisting of compacted and compressed pelletized sawdust particles or granules of relatively uniform size by a pellet fork specifically designed to enable the pellets or particles to sift through the tines... | 11/05/2002 |
| 6123374 | Mini hole digger A new and improved mini hole digger with a handle having a hook secured to a lower surface thereof and two shafts, each of which is secured to the lower surface of the handle inward of an end portion thereof. A foot lever has two apertures formed therethr... | 09/26/2000 |
| 6050626 | Manual trash harvester A manually-operated trash harvester system includes a trash retrieval assembly that consists of a rod with a spike on one end and a handle for a user's hand and an arm strap for the user's forearm at the other end and a movable tubular scraper mounted sli... | 04/18/2000 |
| 5642911 | Litter retrieving tool A litter gathering device consisting of an improved mechanism for retrieval and discharge of litter which uses a plurality of spikes mounted on a rubber plate allowing them to flex. The litter gathering device has a handle attached on top of an elongated ... | 07/01/1997 |
| 5615744 | Garden hand tool A garden hand tool having a tubular outer member terminating at its bottom end in an elliptically shaped peripheral edge with such end being open, a plunger reciprocally mounted in the tubular member and a spring that resiliently biases the plunger upward... | 04/01/1997 |
| 5492181 | Apparatus for cutting square grass plugs The sod cutting device described herein comprises a hollow sod-receiving four-sided receptacle open at the bottom and at least partially closed at the top. The receptacle has a square cross-section parallel to the bottom of the receptacle and the walls of... | 02/20/1996 |
| 5469923 | Device for extracting a plant from the ground The present invention relates to a device for extracting a plant, such as a weed, from the ground. The device has at least two opposed prongs, each prong tapering operatively downwardly. The tapered prongs are shaped and configured with respect to one ano... | 11/28/1995 |
| 5452767 | Vegetation removal apparatus An apparatus for extraction of weeds and other vegetation by hand or by using a power driver. The apparatus includes a hollow housing having at least one slot in which a planar shaft is slidably disposed. An extraction head is detachably coupled to the sh... | 09/26/1995 |
| 5409281 | Weed puller with plug ejecting mechanism A weed pulling apparatus has a tubular member and a handle. The end of the tubular member distally from the handle is inserted into the ground around a weed for forming a weed plug. A plunger rod is longitudinally disposed inside the tubular member and it... | 04/25/1995 |
| 5330010 | Weed extraction apparatus An apparatus (10) for rotary extraction of weeds and other vegetation by hand or by using a power driver. The apparatus includes a hollow guide tube (20) in which a shaft (16) is slidably disposed. An extraction head having a plurality of pointed rods (12... | 07/19/1994 |
| 5261496 | Weedwinder An apparatus (10) for rotary extraction of weeds and other vegetation by hand or by using a power driver. The apparatus includes a hollow guide tube (20) in which a shaft (16) is slidably disposed. A plurality of pointed rods (12) are coupled to shaft (16... | 11/16/1993 |
| 5193871 | Lawn-care device for extracting weeds and removing debris A device for removing plants with roots from the soil having spikes attached at the lower end of a shaft and a trigger mechanism located at the upper end. The spikes are shielded by a cover having holes alignable with the spikes. A rod extending down the ... | 03/16/1993 |
| 5149161 | Cookie dropper A manual device for depositing cookie dough onto baking sheets includes a unitary plastic body having two connected arms. The first arm terminates in a flat spatula used for scooping up and temporarily retaining portions of cookie dough. The second arm te... | 09/22/1992 |
| 5123689 | Sandwich spatula Apparatus for inserting a sandwich into a receptacle, includes a first square plate; a second square plate; a substantially U-shaped connecting section having free ends connected to respective edges of said first and second plates so as to maintain the fi... | 06/23/1992 |
| 5005888 | Garden tool for removing plants having roots A garden tool for extracting a plant having roots in the earth. The garden tool basically comprises a housing and a prong assembly connected to the housing. The prong assembly includes a prong holder and at least three prongs with each prong being connect... | 04/09/1991 |
| 5004283 | Rotary weed extractor A tool for extracting weeds without stooping, bending or personally touching the weed is disclosed. The weed extracting tool has a plurality of spikes mounted onto a block which is mounted onto the lower end of a torque bar. Spiral ribs on the spikes are ... | 04/02/1991 |
| 4986588 | Weed puller with plug ejecting means A weed puller is disclosed having a tubular main body member in one end of which is mounted a piston that is spring-biased toward a released position adjacent the body one end. At its other end, the main body member is provided with a handle arrangement f... | 01/22/1991 |
| 4951584 | Transplanter A transplanter with a rigid frame has a stationary handle fixed to the upper portion of the frame and an open ended earth corer rigidly fixed to the lower portion of the frame. The corer is an open ended casing of circular horizontal cross-section in whic... | 08/28/1990 |
| 4822088 | Weed puller A weed puller of telescopic tubes, the outer tube having one end engageable with a ground surface for surrounding a weed, the inner tube being held retracted and an ejector resiliently held retracted and releasable to eject the weed.... | 04/18/1989 |
| 4776158 | Self-cleaning leaf rake A conventional rake includes a stripper bar on the teeth which is movable by a push rod on the handle of the rake from a raised raking position to a lowered leaf push-off position. A spring clip holds the stripper bar in the raised position and may be ass... | 10/11/1988 |
| 4767141 | Crumb shovel A crumb shovel used to remove excess spoil, gravel, or soil from within any depth trench, cave-in, or the like. The crumb shovel has an elongated handle, a circular scoop, and is designed to be operated by one person. The scoop may provide a spring-loaded... | 08/30/1988 |
| 4729589 | Device for inserting filling into a taco shell A device for inserting a filling into a taco shell includes a base portion, a top portion, and an ejector portion slidably mounted on the base portion. The base portion includes an elongated handle portion having a lengthwise axis and a scoop portion with... | 03/08/1988 |
| 4676538 | Fertilizer implanting tool A tool for implanting fertilizer spikes in the ground with a rod slidably disposed in an open ended hollow tube which is adapted to be inserted into the ground to a predetermined depth. The fertilizer spike engages the end of the slidable rod, the hollow ... | 06/30/1987 |
| 4656929 | Cooking utensil for deep fat frying of food items An improved cooking utensil for the deep fat frying of food items including at least one food holding container having a movable portion which is responsive to a movable portion control means and moves from a closed position in alignment with adjacent por... | 04/14/1987 |
| 4653790 | Coin getting apparatus A treasure digging tool is disclosed with an open elongated circular tube formed at one end thereof to which is secured a spring-biased mechanism that works in conjunction with the circular tube when digging for treasure. The depth to which the treasure d... | 03/31/1987 |
| 4632441 | Scoop for solids A scoop for picking up particulate, granular, or penetrable solids. The scoop itself is a rugged one-piece construction that has a bucket member which is pushed into solids to be scooped in a normal "open" position. The scoop is constructed in the shape o... | 12/30/1986 |
| 4603744 | Weed extractor device A weed extractor device has an elongated member with a crank at its upper end portion and an extractor head at its lower end portion, the head having at least one blade, and preferably two, for insertion and rotation in soil. The blades have leading edge ... | 08/05/1986 |
| 4585072 | Gardening tool with plug ejector and detachable cutting chamber An improved tool for removing weeds and for planting plugs of grass is provided with an elongated, upright sleeve having a hollow chamber at the lower extremity thereof. A plunger is operated to pass through the chamber by means of an elongated handle ext... | 04/29/1986 |
| 4483240 | Cooking utensil for deep fat frying of food items A cooking utensil for the deep fat frying of certain food items such as spring rolls and the like by immersion into hot liquid such as cooking oils which includes a food container with an opening for insertion and removal of the food. A piston-like member... | 11/20/1984 |
| 4243206 | Apparatus for removing weeds An apparatus for removing weeds or other plants comprising a handle having a foot operated lever pivotally coupled to one end. A plurality of tines are connected to the front end of the lever for insertion into the ground for removing weeds or other plant... | 01/06/1981 |
| 3990735 | Newspaper delivery aid A device for facilitating the delivery of newspapers by motor vehicle to individual residential customers on what is commonly referred to as a motor delivery route. The device generally comprises a tubular holder to receive and embrace one end portion of ... | 11/09/1976 |