Celebrity Inventors
Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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 |
| 4697675 | Shaft aligned backstop for a reducer A backstop for a reducer having a casing comprises a one-way cylindrical clutch having a plurality of circularly arranged locking elements therein engaged by the periphery a reducer input shaft passing axially therethrough. To achieve a precise concentric... | 10/06/1987 |
| 4641061 | Solid state ballast for gaseous discharge lamps A solid state ballast for starting and operating a plurality of fluorescent lamps comprises a plurality of parallel connected, series LC circuits each coupled by a capacitor to a lamp so that voltage existing across the series capacitors is applied across... | 02/03/1987 |
| 4592332 | Arrow rest device An arrow rest including, a support plate detachably connected to one end of a non-circular rod slidable longitudinally in a non-circular bore in a body member mounted in a bow handle, a coil spring biasing the rod and arrow rest outward from one side of t... | 06/03/1986 |
| 4576072 | Sawdust collection apparatus for a table saw Sawdust collection apparatus for a motorized table saw includes a specially formed and hinged, table top saw guard and sawdust collector to which one end of a vacuum hose is connected in a manner to admit air bleeding so as to safely lower the vacuum ther... | 03/18/1986 |
| 4562515 | Calibrated area source task light A task light for mounting relatively close to an underlying work area has an elongated fluorescent bulb extending across the work area, a wide, flat and elongated prismatic lens underlying and adjacent the bulb for distributing light over the entire work ... | 12/31/1985 |
| 4559479 | Starting and dimming circuit for fluorescent lamps A rapid start circuit for starting and step dimming a fluorescent lamp includes a voltage step up auto transformer and lamp filaments for starting, ballast and a pair of capacitors having different values variously connected in series with the lamp and ba... | 12/17/1985 |
| 4553522 | Mounting means for bow stabilizers A device for resiliently mounting a pair of stabilizer rods for universal angular adjustment on a bow has a central member fixed to the bow and having a cylindrical portion projecting from each end, a pair of intermediate members each has a bore in one en... | 11/19/1985 |
| 4551984 | Degradation sensing and shut-down means for refrigeration motor-compressor units Means for continuously shutting-down operation of an enclosed motor-compressor unit upon predetermined contamination of the refrigerant-oil mixture therein by conductive particles which comprises providing a normally open switch in the motor energizing ci... | 11/12/1985 |
| 4543797 | Degradation sensing and shut-down means for refrigeration motor-compressor units Means for continuously shut-down operation of and enclosed motor-compressor unit for refrigeration or heat pump service when the refrigerant-oil mixture therein reaches a predetermined degree of contamination by conductive particles comprises the provisio... | 10/01/1985 |
| 4542731 | Bow with vertically and horizontally adjustable arrow support A hollow cylindrical, internally and externally screw threaded support member extends through a vertically elongated aperture from side to side through the bow handle and is vertically adjustable therein. The support member has a square head on one end wh... | 09/24/1985 |
| 4532841 | Saw blade guard A hood-like saw blade guard for a radial arm saw is mounted for free vertical movement on a support frame detachably connected to the suspended saw blade driving motor housing. The guard extends over the entire saw blade when in its downward position and ... | 08/06/1985 |
| 4522454 | Linear slide The radial arm of a radial arm saw formed of sheet metal has a horizontal top wall and a pair of vertical sidewalls which are formed horizontally inward at their lower edges as to form ledges for supporting the opposite sides of a longitudinally slidable ... | 06/11/1985 |
| 4494521 | Archery bow having bow limb assembly and adjustment The butt sections of the limbs of a take-down bow are loosely received in inwardly extending sockets in the ends of a bow handle section and are arranged to rock in a fore and aft direction on outer end portions of the rear socket walls. Inwardly extendin... | 01/22/1985 |
| 4490988 | Degradation sensing and shut-down means for refrigeration motor-compressor units Means for shutting down operation of an enclosed motor compressor unit for air conditioning and heat pump service consists in immersing a pair of spaced electrodes having a potential gradient thereacross in the refrigerant-oil mixture in the unit enclosur... | 01/01/1985 |
| 4489909 | Sawdust collector bag for a table saw A sawdust collector bag arranged for convenient detachable connection to walls defining an opening through which sawdust is ejected has a hemmed open end and rods extending through the hem are entered into and resiliently retained in retaining clips space... | 12/25/1984 |
| 4489475 | Method of constructing a drive tensioning device Meshing radially serrated annular pads projecting from the meeting surfaces of two members of a belt drive tensioning device to provide locked incremental angular adjustment of the members are formed by depressing an annular indentation in each member in ... | 12/25/1984 |
| 4479507 | Fluid pressure operated valve A fluid pressure operated valve device for connection to the inlet and outlet sides of a pilot valve has a two part, axially separable hollow cylindrical body with axially aligned inlet and outlet passageways, a side ported hollow cylindrical liner of sma... | 10/30/1984 |
| 4454857 | Peep sight for a bow A bow string mounted peep sight has the form of a wheel with an elongated hollow hub tightly receiving the bow string and spokes connecting the hub to a rim. When the bow is in a braced condition with the bow string vertical the rim and spokes are horizon... | 06/19/1984 |
| 4453691 | Radial arm saw A radial arm saw has arm elevating means employing an elongated nut adjustably attached to the arm and slidably guided in a longitudinal groove formed in a tubular column and a motion transmission screw journalled in the column, means employing like eleme... | 06/12/1984 |
| 4452547 | Means detachably mounting a speed reducing mechanism on a shaft to be driven A speed reducer having a power takeoff sleeve loosely receives therein a shaft to be driven. Concentricity and a driving connection of the shaft and sleeve is effected by a pair of telescoping bushings having tapered interfitting surfaces in each end of t... | 06/05/1984 |
| 4452222 | Cable guard for a compound bow A cable guard for a compound bow comprises a rod attached at one end to the bow handle and extends therefrom beyond the cables when the bow is fully drawn and is spaced laterally from the bow string sufficiently to avoid any interference therewith; and a ... | 06/05/1984 |
| 4448183 | Adjustable cable anchors for a compound bow The free end portions of the cables of a two-wheel type compound bow are extended to the back of the bow over pulleys rotatably mounted on the wheel shafts, the cable ends are fixed in one end of screws movable longitudinally in bores in adjacent anchor m... | 05/15/1984 |
| 4418839 | Meter controlled dispensing apparatus A main hydraulically operated valve body has a valve element therein which is biased closed when inlet pressure is applied to both sides thereof and is moved openward when inlet pressure is variably exhausted from its outlet side through a pilot valve hav... | 12/06/1983 |
| 4418597 | Anti-kickback device A flat support member mounted on and extending above a horizontal worktable has an elongated, inclined slot therein with a rack formed along its upper side, a wheel lying along one side of the member and rolling on a workpiece on the table has a coaxial p... | 12/06/1983 |
| 4373937 | Electrostatic precipitator with modular cabinet and cell washer A roof-mounted electrostatic air cleaner for connection to an exhaust duct has a sectionalized cabinet with detachably connected, directable inlet and outlet sections and an intermediate precipitator section, a traveling manifold with multiple spray nozzl... | 02/15/1983 |
| 4367665 | Sawdust collection system A belt driven table saw having a open bottom base below the worktable enclosing saw tilting and elevating mechanism and a driving motor mounted outboard of the base has a sawdust collector bag detachably connected to and closing the bottom of the base for... | 01/11/1983 |
| 4294044 | Tracking mechanism for a belt type sander An idler drum mounted for rotation on one end of a swinging arm is arranged to engage opposite sides of a sanding belt and to tension it in opposite directions when the arm is swung oppositely to first and second positions; belt tracking mechanism includi... | 10/13/1981 |
| 4290788 | Electrostatic air cleaner and mounting means therefor A rigid cutout template is attached to the thin wall of a return air duct and suitably positions and supports an electrostatic air cleaner inserted into the duct through a cutout therein defined by the template. A power-pac and control box is secured else... | 09/22/1981 |
| 4278117 | Three dimensional duplicating carving machine A duplicating carving machine for the home workshop of the kind in which a guiding stylus and router are movable horizontally in straight line perpendicular paths and vertically in an arcuate path. Rigid construction of the machine permits manipulation of... | 07/14/1981 |
| 4273990 | Baseboard heater with high temperature cut-off switch A baseboard heater for mounting against a wall and spaced from the floor comprises a casing having an open bottom and upper front side which permits the free upward and then forward free flow of air therethrough. An elongated electrical heating element mo... | 06/16/1981 |
| 4268998 | Belt sander for sanding external and internal surfaces In a first position an endless sander belt extending over spaced drive and idler pulleys has one run extending straight between the pulleys past an intermediate work station and a return run biased laterally outward therefrom by a swinging idler drum moun... | 05/26/1981 |
| 4256155 | Wood lathe with duplicating means A home workshop wood lathe mounted on a flat bed includes a pair of elongated members having horizontal surfaces which extend along opposite sides of and slightly above the lathe ways and are spaced to permit a tail stock to slide along the ways. Brackets... | 03/17/1981 |
| 4231557 | Portable work bench A portable work table intended for home use, with or without detachable legs, has a rigid, elongated, rectangular frame and a pair of longitudinally extending members thereon forming a work surface and also functioning to clamp a workpiece therebetween, o... | 11/04/1980 |
| 4215666 | Arrow spacing screw for archery bow A pliant hollow screw of thermo plastic material for threaded engagement in a bow handle section to adjustably space an arrow from the adjacent side of the bow. The screw has a cluster of integrally formed flexible pins projecting longitudinally from its ... | 08/05/1980 |
| 4215815 | Battery operated thermostat timer with battery charging circuits A space thermostat for switching electrically operated space conditioning apparatus includes an electrically operated timer functioning to periodically change the temperature "set point" of the thermostat, a small rechargeable storage battery for operatin... | 08/05/1980 |
| 4209686 | Electrical resistance heater An electrical resistance heater comprises a unitary ceramic coil support and mounting member having a horizontally elongated coil support portion around which a helical coil of conductive wire is wound and a vertically downward extending leg portion at ea... | 06/24/1980 |
| 4200909 | High voltage power supply for electrostatic air cleaner Components of a high voltage power supply are detachably mounted for replacement in predetermined positions in a rigid casing of dielectric material and arranged therein so as to provide the required intercomponent and component to casing electrical clear... | 04/29/1980 |
| 4184395 | Radial arm saw A radial arm saw has separate and independently adjustable actuating means operated by a single lever for indexing the arm in spaced miter positions and for clamping it in infinitely variable miter positions, a novel arm clamp shoe, an adjustable arm inde... | 01/22/1980 |
| 4177923 | Battery operated thermostat timer with battery charging circuits A space thermostat for switching electrically operated space conditioning apparatus includes an electrically operated timer functioning to periodically change the temperature "set point" of the thermostat, a small rechargeable storage battery for operatin... | 12/11/1979 |
| 4140498 | In-the-wall-mounted electrostatic air cleaner An electrostatic air cleaner includes a casing adapted to be mounted in a ceiling or sidewall between ceiling joists or sidewall studs, the casing having an adjustable outlet, a grille and pre-filter detachably connected to its inlet or room side, and an ... | 02/20/1979 |
