Famous Patents
William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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 |
| 4467782 | Ventilating system for use with devices which produce airborne impurities A ventilation system for use with devices which produce airborne impurities, particularly cooking grills, deep fat fryers and the like. A first blower supplies untempered makeup air. A first plenum, which includes a first perforated wall having a pluralit... | 08/28/1984 |
| 4416294 | Leaf stripper A leaf stripping machine for tobacco and the like which consists of a framework with a large pinwheel rotatably mounted on a vertical plane at one end of the framework and a stripping implement with a V-groove mounted on a track oriented perpendicular to ... | 11/22/1983 |
| 4401046 | Pneumatic thread undercutter A pneumatic thread undercutter to sever both the needle thread and the bobbin thread in a lock stitch type sewing machine. The apparatus works in conjunction with a pneumatically controlled sewing machine, and includes a frame disposed beneath a sewing ar... | 08/30/1983 |
| 4397362 | Drilling head A drilling head of the claw-type which eliminates the need for a pilot bit. The configuration to be described hereandafter causes the drill head to run more smoothly and straighter than those claw-type drills having a pilot. The structure includes a threa... | 08/09/1983 |
| 4397118 | Glass beveling apparatus An apparatus for beveling a marginal edge of a sheet of glass which includes a table having a top opening in which a support plate for the glass sheet to be bevelled is disposed with a grinding wheel mounted on the table over the support plate, the grindi... | 08/09/1983 |
| 4386931 | Ostomy leakage represser Disclosed herein is an ostomy leakage represser adapted to place a diversion pouch in good sealing engagement with a stoma implanted in the user, the represser being suitably fashioned to provide pressure along a lower surface of the stoma so as to effect... | 06/07/1983 |
| 4381645 | Power unit for dam A water power unit for a dam which includes a downwardly directed conduit for directing water from the body of water from the body of water retained by the dam to a water turbine or the like for generating power, the conduit including an upstanding U-shap... | 05/03/1983 |
| 4369778 | Method and apparatus for a portable respirator Disclosed herein is a portable respirator and method of using same which includes a container having an enlarged opening that is flared outwardly, adapted to fit over the mouth area of a person requiring resuscitation, a plurality of unrestricted fenestra... | 01/25/1983 |
| 4369754 | Vacuum responsive injection system for engines A vacuum responsive injection system for engines which includes a vacuum conduit extending from a carburetor to a crankcase ventilation valve, injection means in said vacuum conduit connected to a metering means through a tube, the metering means is opera... | 01/25/1983 |
| 4360978 | Shoe spring device A spring device for a shoe such as a skate shoe having a sole plate provided with threaded bolts for mounting wheels which includes a unitary strip of spring metal having upper and lower portions arranged in vertically spaced, parallel relationship and ha... | 11/30/1982 |
| 4349191 | Abdominal sidebend machine-upper Disclosed herein is an upper abdominal sidebend machine including a base frame which carries a weight supporting cage thereon, a seating area supported by the base, a roller trackway which revolves about the seat having an upwardly extending transverse tr... | 09/14/1982 |
| 4349192 | Counterbalanced weight system Disclosed herein is a counterbalance weight system for use with exercising machines in order to negate the weight that is intrinsic to a weight lifting structure, so as to provide a true indication of the amount of work being done. The machine is defined ... | 09/14/1982 |
| 4349193 | Lower abdominal twist machine An lower abdominal twist machine including a frame having weights slidably mounted in a cage with the weights drivably connected to a rotatably mounted seat for an individual together with a handgrip on the frame which is grasped by the individual in a se... | 09/14/1982 |
| 4349194 | Apparatus for exercising the inner and outer thigh muscles Apparatus for exercising the inner and outer thigh muscles of an individual which includes a frame having a seat and a weight cage of a weight movable upwardly from a rest position with pivotally mounted leg receiving frames for accommodating the legs of ... | 09/14/1982 |
| 4349788 | Transient intermodulation distortion limiting circuit for an amplifier system A circuit for limiting transient intermodulation distortion in a amplifier system including an operational amplifier having a gain stage and a feedback network connected between the gain stage and the amplifier feedback port together with a pair of opposi... | 09/14/1982 |
| 4349209 | Snow shuttle A snow shuttle for use in winter recreation upon hills and the like in which the shuttle includes a forward steering section, a frame area pivotally connected thereto, a seating area disposed upon the frame, and a braking apparatus similarly carried on th... | 09/14/1982 |
| 4344844 | Inclined static deoiler and conditioner for treating ore An inclined static deoiler and conditioner for treating ore such as coal, phosphate, and the like which combines with liquid to form a slurry prior to froth floation which includes in combination a trough having plural baffles therein which are oriented t... | 08/17/1982 |
| 4335534 | Trotline guide A trotline guide comprising a substantially planar body having a recess in the upper edge including a circular portion and a slot for receiving and slidably accommodating a trotline together with a clamp on one side of the body for clamping the body to a ... | 06/22/1982 |
| 4333644 | Hack-squat machine Disclosed herein is a hack-squat machine in which hips, thighs, hamstrings, calves, and lower back muscles are exercised. The device includes a base frame, a weight cage having a plurality of weights supported therein, and a drive system including sprocke... | 06/08/1982 |
| 4328535 | Safety device for a trouble light A safety device for a trouble light having a metal cup-shaped housing provided with a socket for a light bulb disposed within the interior of the housing with a wire guard on the housing for protectively surrounding the exposed light bulb comprising a pad... | 05/04/1982 |
| 4322071 | Standing vertical leg curl Disclosed herein is a standing vertical leg curl machine including a framework having a base and a plurality of upstanding vertical support members interconnected by horizontal braces, a pair of spaced thigh pads connected to a thigh bar having an adjusta... | 03/30/1982 |
| 4318053 | Amplifier system with automatic distortion control An amplifier system with automatic distortion control including an amplifier provided with a detector between the amplifier output and feedback ports for detecting a nonlinear condition with a balanced differential circuit connected to the detector and fe... | 03/02/1982 |
| 4312083 | Water closet flush valve A flush valve for a toilet having a tank and a bowl including a valve housing connected to a source of water, a valve stem operatively connected to a float and a piston operatively connected through a cam to a flush lever, the valve stem and piston movabl... | 01/26/1982 |
| 4311292 | Gutter attachment Disclosed herein is a mechanism for attaching a gutter to the bottom portion of a roof so as to carry water away therefrom comprising an L-shaped bracket having a vertical and a horizontal leg, a hinged member attached to the horizontal leg at an extremit... | 01/19/1982 |
| 4311305 | Chest and bust machine Disclosed herein is a chest and bust machine defined by a base frame from which emanates a plurality of upwardly extending support rods on a pair of which is deployed a vertical back support and a vertically adjustable seat mechanism. Provided in front of... | 01/19/1982 |
| 4308923 | Accu-press Disclosed herein is a device for orienting a drilling auger disposed on and powered by a vehicle defined by a lower frame member carried by the vehicle, an upper frame member pivoted to the lower frame member for rotation about an axis, and an auger suppo... | 01/05/1982 |
| 4306433 | Key case with detachable key holders A key carrying device to fit comfortably in the pocket of a garment comprising a soft case, and enclosed thereby, a plurality of detachable and reattachable key holders having indicia thereon.... | 12/22/1981 |
| 4305320 | Selector switch A selector switch for musical instruments such as electric guitars is provided with a palm switch that can be manually actuated so that any of the various pick-ups of the guitar can be actuated, so that there is a convenient method of switching to either ... | 12/15/1981 |
| 4304121 | Apparatus and method for a gyroscopic effect test Disclosed herein is an apparatus and method for performing a test with a gyroscope in which the apparatus defines a pair of gyroscopes suitably fashioned to rotate in opposed directions, a substrate supporting said gyroscopes, and a bell jar overlying the... | 12/08/1981 |
| 4302898 | Individual safety firing button for guns A lock is provided on the stock of a gun defined by a plurality of buttons some of which must be simultaneously depressed in order to release a safety lever so that the lever can be moved from a locked to an unlocked position permitting the firing of the ... | 12/01/1981 |
| 4294168 | Insertable article for altering the cure rate and chemical composition of an object Disclosed herein is an insertable article for altering the cure rate and chemical composition of an object thus pierced which includes an elongated shaft, preferably formed from heat conductive material, and recesses extending along the length of the shaf... | 10/13/1981 |
| 4290336 | Molded guitar structure and method of making same Disclosed herein is a guitar neck and body made from moldable materials such that the finished guitar may be made either solid, semi-solid, or substantially hollow, and wherein the structure further includes interconnection areas between the various compo... | 09/22/1981 |
| 4290335 | High frequency roll-off circuit A high frequency roll-off circuit for a gain stage including an amplifier having a feedback network together with a dual potentiometer comprising two serially connected gang operated resistors connected between the amplifier feedback port and through a ca... | 09/22/1981 |
| 4269337 | Roller skate carrier A carrier for roller skates including a frame having sides provided with vertically spaced recesses for accommodating the wheel and axle assemblies of a pair of roller skates to support the roller skates in oppositely disposed relationship on the frame to... | 05/26/1981 |
| 4267613 | Bee keeping apparatus Disclosed herein is a bee keeper frame for use as a brooding area within a beehive including a wax brooding foundation fastened to a framework formed from a substantially rectangular grid. The wax brooding foundation is deployed within the frame by means ... | 05/19/1981 |
| 4240626 | Abdominal waist machine Disclosed herein is an abdominal waist exercising device characterized in that exercise motions developed by the working against of weights is ultimately transferred from the back of the knee to exercising muscles throughout the groin area. The machine is... | 12/23/1980 |
| 4239210 | Arm curl machine Disclosed herein is a machine for use in exercising the upper arm area by performing what is known as an arm curl. The machine is defined by a seating area, a pivotable arm support table, and a bar fashioned to comfortably engage the hands of the user. Th... | 12/16/1980 |
| 4237944 | Method for forming the neck of a guitar Disclosed herein is a method and its associated article for forming the neck of a guitar so that a torsion rod disposed within the neck can serve to straighten neck or counteract the tension or bowing effect of guitar strings. The method includes taking t... | 12/09/1980 |
| 4236711 | Magician's walking cane snake Disclosed herein is a device that can be used as a magician's prop that in one instance functions as a rigid walking stick or cane, but when released and actuated becomes coiled upon the floor and takes on the appearance of a snake with its head raised. T... | 12/02/1980 |
| 4236712 | Standing calf exercise machine An apparatus for exercising the calf muscles defined by a framework in which a top extremity thereof is provided with a pair of horizontally extending arms pivoted to a pair of top frame members interconnected and capable of rotation, shoulder pads dispos... | 12/02/1980 |
