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 |
| 5239758 | Hand drill powered mini chain saw A sawing device is attachable to an electric hand drill. The hand drill can be operated by either alternating current or direct current, using a battery. The battery operated drill eliminates the need for electrical cords, so it can be used anywhere. The ... | 08/31/1993 |
| 5134776 | Hydraulically actuated hand-held wire cutter A hand-held tool has cutter blades actuated by a power wedge on a piston rod in an hydraulic cylinder. The hydraulic cylinder is powered by a compressed air supply through stationary apparatus containing an air-hydraulic pressure intensifier apart from th... | 08/04/1992 |
| 5127587 | Kitchen composter A floor mounted de-watering spin chamber is connected with a kitchen disposer-grinder for de-watering and collecting ground food scraps that are suitable for garden composts. The spin chamber contains a perforated rotary spin basket and has a rigid lid wi... | 07/07/1992 |
| 5061299 | Air/gas/micro partical pollution control system Contaminated hot gases are first cooled and then the flow is divided between a plurality of identical modules for removal or contaminants. There are two stages of treatment in each module, starting with submergence of the flow under the surface of an agit... | 10/29/1991 |
| 5002182 | Crayon holder and container Resilient fingers extend from one end of the crayon holder whereby a crayon may be pushed forward by a push rod to project beyond the fingers. A sleeve is slidable on the fingers to clamp the crayon in adjusted position, the sleeve being movable between o... | 03/26/1991 |
| 4843720 | Dental measuring instrument A dual purpose instrument having parts to measure the width of the nose and parts to measure the vertical distance from the underside of the chin to the underside of the nose, for use in making dentures.... | 07/04/1989 |
| 4832390 | Clamshell loader bucket with broom brushes A clamshell type loader bucket has a pair of pivotal jaws with scraping edges on the bottom of the bucket for scraping material off a supporting surface. Behind the scraping edges are brushes to sweep loose material on the supporting surface into position... | 05/23/1989 |
| 4805676 | Automatic whole and multiple tree firewood/hog fuel processor An adjustable infeed ramp supports the input end of a main frame at a height to tilt the main frame to correspond to the inclination of a log in process. Pulled into the machine by a winch line, the leading end of the log is gripped by vertical feed rolls... | 02/21/1989 |
| 4785154 | Method and apparatus for joining together the ends of a metallic band by resistance inert gas welding This method of electric welding metal band ends together comprises a fusion cycle with the introduction of inert gas, a cooling cycle with the introduction of cooling air, and an annealing cycle. The method is carried out in a fusion head having grippers ... | 11/15/1988 |
| 4751540 | Camera tripod This tripod is mounted on a camera by a flat mounting plate having a slot in one end thereof forming a pair of projecting end portions having beveled ends, a pair of legs having beveled upper ends connected to the beveled ends on the projecting end portio... | 06/14/1988 |
| 4697510 | Contamination deflector system for bale binding machines A bale binding machine for waste material has a bale encircling guide track for a band to bind the bale wherein the bottom portion of the guide track under the bale is provided with a pair of deflectors to intercept contaminating liquids and solids fallin... | 10/06/1987 |
| 4670982 | Hair cutter An open bottom housing containing motor driven cutting blades is placed on the head and the hair if drawn up into the housing and through the cutting blades by an upward air flow through the housing. This air flow is produced by a suction connection at th... | 06/09/1987 |
| 4646987 | Take-up reel for tape containing conductors A tape containing communication conductors, such as telephone wires, or conductors for other purposes, is connected at mid-length to the hub of a spring operated takeup reel so that the reel winds in the opposite end portions of the tape one on top of eac... | 03/03/1987 |
| 4643677 | Dental instrument An elongated straight handle portion has a cylindrical plugger element on each end thereof. Each plugger element has a 45° bend adjacent the end of the handle and a 90° bend adjacent the distal end of the plugger element. Protruding laterally from the a... | 02/17/1987 |
| 4611534 | Bale strapping apparatus In the illustrated embodiments, with a bale of material compressed between upper and lower press platens an end binder moves toward one end of the bale and a back track moves toward the opposite end to apply a loop of strap around the top, bottom and ends... | 09/16/1986 |
| 4572562 | Lifting sling An arcuate channel member has a detachable connection at mid length with an object to be lifted. The channel member provides a guide track for sliding movement of the lower portion of a flexible cable sling loop, the upper portion of which is lifted by a ... | 02/25/1986 |
| 4570960 | Outboard motor cart The cart has a clamp securing it to the cavitation plate on the stem of the motor. The cart stands upright on two rear wheels and a front leg, allowing it to be tilted and wheeled up or down stairs. An arched frame partially surrounds and protects the pro... | 02/18/1986 |
| 4530535 | Cargo hook A horizontal load carrying pin is rotatable on a horizontal pivot and has a free end supported on a saddle on a latch arm which may be withdrawn to release the load. Upon release of the load a counterweight on the opposite end of the pin returns the pin t... | 07/23/1985 |
| 4525941 | Mud walker A platform is supported around the periphery of its under surface by a pneumatic tube cushion secured to the platform by strap loops. The top side of the platform is equipped with adjustable means of securement to the shoe or boot of the user. Vent holes ... | 07/02/1985 |
| 4523407 | Hatch cover The hatch cover is secured and locked in place by a spider which is rotatable into locking position against the underside of a deck ring which receives the cover plate. The spider is clamped by a center bolt passing through the cover and the spider. Means... | 06/18/1985 |
| 4493605 | Material handling apparatus for loaders A clamshell-type loader bucket has a pair of jaws with meeting edges that close together on one side of the bucket and on the bottom of the bucket to retain fine material such as sand, dirt or dry grain. The meeting edges on the bottom of the bucket are a... | 01/15/1985 |
| 4483379 | Wood/log processing machine The machine automatically pivots itself into alignment with the orientation of a log being drawn into the machine, and/or pivots the log, and is vertically adjustable to conform to the inclination of a log in process. To cut off an end piece of the log, a... | 11/20/1984 |
| 4477049 | Christmas tree stand A tree holder bar and an inverted U-shaped support bar are welded at their lower ends to a circular base ring, leaving an open space to receive a water container. Upper portions of the two bars are welded together adjacent a downward bend in the tree hold... | 10/16/1984 |
| 4462627 | Lift frame assembly An elongated lift frame, lifted and moved by a crane, has a plurality of transverse spreader bars which may be shifted to different positions along the frame. The spreader bars have extensions in their ends equipped with supports for load hooks. A latch p... | 07/31/1984 |
| 4461052 | Scrubbing brush, rinse and sweeping equipment A hand operated combination handle and control valve assembly applicable to each of three related cleaning devices. The valve, when attached to a standard pressurized water hose, controls the pressure flow as desired; such as off, pressure to a first outl... | 07/24/1984 |
| 4444233 | Knife holder in woodworking machine A knife is secured in a holder by a cambered clamp plate which is flattened against one face of the knife by a pair of sliding wedges engaging opposite side edge portions of the clamp plate. The wedges are tightened individually to facilitate accurate pos... | 04/24/1984 |
| 4416480 | Pneumatic release for load hook The lifting of a load moves a piston to pump a charge of air into a small compressed air reservoir above a load hook. A remote control radio signal opens a valve to transmit the air pressure to the load hook causing the hook to release itself from its loa... | 11/22/1983 |
| 4403542 | Bale strapping system A pair of strapping carriages move in one direction from station to station along opposite sides of the bale applying straps simultaneously in different positions from said opposite sides of the bale at each station. The carriages continue to a rest stati... | 09/13/1983 |
| 4398581 | Tree processing apparatus Apparatus on the back of a tractor carries an adjustable shear blade frame. This frame may be inclined upward or downward from horizontal to cut off trees at ground level and parallel with an inclined ground surface. The frame may be side shifted to recei... | 08/16/1983 |
| 4397089 | Straight line guide on electric power hand saw A guide bar has a pair of clamps for mounting on the shoe of an electric power hand saw. The guide bar is adjustable both longitudinally and laterally in relation to the saw. This arrangement facilitates trimming strips off the ends or side edges of wood ... | 08/09/1983 |
| 4360220 | Independent, load-seeking, preloaded, vehicle suspension A tandem wheel suspension unit contained in a wheel well on a trailer. A frame is supported by a precompressed coil spring on the trunion shaft of a walking beam assembly, the walking beams having stops engaging said frame to normally prevent oscillation ... | 11/23/1982 |
| 4356870 | Water spray fire protection for hoods over cooking units A water spray system applied directly to cooking units in a kitchen rather than to the ventilating duct for the cooking units. The system may be a wet system with water pressure maintained at spray nozzles which open in case of fire, or an open head, or d... | 11/02/1982 |
| 4328767 | Retractable leash collar A retractor mechanism is mounted on the collar adjacent the buckle, the weight of these parts holding them under the animal's neck when the leash is retracted. A guide ring half way around the collar provides a stop for a handle on the free end of the lea... | 05/11/1982 |
| 4281635 | Kitchen ventilator with inlet throat choke attachments Choke attachments are applied to that portion of the inlet of the ventilator serving low pollution cooking units in a row of various types of cooking units in a restaurant kitchen. This reduces the rate of air removal from the kitchen, and in most cases a... | 08/04/1981 |
| 4272084 | High pressure shaft seal A multiple stage mechanical end face seal assembly which has been developed to improve seal reliability and performance during both steady-state and transient operation. The seal assembly features a rotating seal ring mounting system which utilizes a rigi... | 06/09/1981 |
| 4266529 | Kitchen ventilator with removable grease extractor All the grease extracting baffles are incorporated in a single unit which is removable from the ventilator for cleaning. The baffle arrangement changes the direction of the whole flow of air through the ventilator without dividing the flow, as distinguish... | 05/12/1981 |
| 4266796 | Trailer tongue wheel In the present construction the tongue wheel is mounted on a strut assembly for pivotal movement from an upper carrying position with the wheel above the tongue to a lower working position with the wheel below the tongue. A lever is insertable in a socket... | 05/12/1981 |
| 4246818 | Slicer knife safety cover A circular cover has a peripheral flange to overhang and enclose the cutting edge of a rotating disk slicer knife in a slicing machine for meat and other foods. A central handle remote from the cutting edge of the knife disc is provided for applying the c... | 01/27/1981 |
| 4243084 | Door sizing machine Starting from a loading position, a door carriage moves a door sideways between a pair of saws to trim the ends of the door. Then the carriage remains stationary while a pair of planer heads move across the carriage to trim the side edges of the door. Fin... | 01/06/1981 |
| 4238862 | Pocket multiple tool Channel shaped handles are foldable over plier jaws for compact carrying and storage. Auxiliary parallel jaws are operable by the main jaws when desired. Locking means are provided, operable with both sets of jaws to maintain a strong grip on an object wh... | 12/16/1980 |
