Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 6085784 | Quick connect hose assembly A quick connect hose assembly is provided for a widespread faucet including a spout and a pair of end bodies mounted to a deck at spaced locations from the spout. The quick connect hose assembly includes a T-connector slidably mounted on an end of a water... | 07/11/2000 |
| 6073972 | Composite body faucet connection A composite body 20 for a faucet assembly 21 that is mountable on a deck 62 and having a faucet body 22. The composite body 20 has a shank 66 affixed to the deck 62 and cold and hot water supply lines 38 that are connected in the shank 66 by a support pla... | 06/13/2000 |
| 6032686 | Cartridge valve with vacuum breaker A cartridge valve 116 includes a fixed disk 80 and a movable disk 118 mounted in a housing 66. A lever 46 extends through a major opening 72 axially located at one end of the valve 116. The lever 46 is attached to a coupler 130 for facilitating movement o... | 03/07/2000 |
| 6016830 | Valve assembly A non-riser valve assembly 30 includes a bonnet or housing 32, a bushing 34, a stem 36, a washer 38 and a stop 40. The assembly 30 further includes a coupling 42, a rotatable or movable disk 44, a fixed disk 46 and a bottom seal 48. In assembly, the bushi... | 01/25/2000 |
| 5946746 | Quick install faucet assembly An apparatus is provided for installing a faucet on a top side of a deck. The apparatus includes a threaded member engaged with the faucet and extending through the mounting hole to be rotated from above the deck. A nut is threadedly connected to the thre... | 09/07/1999 |
| 5947149 | Non-visible faucet handle connection A handle assembly is connectable to a valve stem of a valve extending from a deck mounting above an escutcheon flange engaging the valve and the deck. The handle assembly includes a handle adapter to which a handle is connected. The handle adapter has a l... | 09/07/1999 |
| 5944358 | Reversible ejector tee In a tub and shower unit, a faucet body 30 facilitates the supply of hot water and cold water either to a tub or a shower head, depending on whether a diverter valve of the unit is set in a tub mode or a shower mode. A reversible ejector tee 82 or 138 is ... | 08/31/1999 |
| 5941503 | Valve assembly A non-riser valve assembly 30 includes a bonnet or housing 32, a bushing 34, a stem 36, a washer 38 and a stop 40. The assembly 30 further includes a coupling 42, a rotatable or movable disk 44, a fixed disk 46 and a bottom seal 48. In assembly, the bushi... | 08/24/1999 |
| 5931181 | Anti-scald faucet system A faucet system includes a cold water control valve and a hot water control valve. These control valves are in communication with each other through a cold water supply conduit and a mixed water conduit. The hot water control valve includes a needle valve... | 08/03/1999 |
| 5924676 | Valve assembly A valve assembly 20 includes a housing or bonnet 22 and a stem 24. The valve assembly 20 further includes a thrust washer 26, an O-ring 28, a reversible stop 30 and a retainer 32. A coupler 34, a rotatable ceramic disk 36, a fixed ceramic disk 38 and a bo... | 07/20/1999 |
| 5884652 | 2/3 handle pressure balancer system A pressure balancer system 10 having a pressure balancer 20 and a temperature controller 24 on one side of the system and a volume controller 14 on the other side of the system. The pressure balancer 20 receives hot and cold water which it discharges into... | 03/23/1999 |
| 5873385 | Check valve A check valve 10 for a fluid passageway 12 or 14 of a pressure balancer 16 or the like, and having a base plate 40 with an opening 62 therethrough connected in the passageway 12 or 14. The underside 42 of the base plate 40 disposed in the passageway 12 or... | 02/23/1999 |
| 5746244 | Unitary throat plate/putty plate for a faucet A faucet 10 having a copper tube waterway 44 assembled to hot water valve 40 and cold water valve 42 to control the discharge of water for the waterway 44, and a housing 12 with a base 14 and a spout 16 formed therein. A unitary member 74 including a thro... | 05/05/1998 |
| 5741003 | Child-resistant handle A child-resistant handle to be mounted to a valve stem to which is affixed a cogwheel adapter by a shoulder screw. The shoulder screw rotatably mounts the freely rotatable handle to the valve stem. The handle has an inverted cup shape that extends over an... | 04/21/1998 |
| 5730171 | Valve assembly A valve assembly 30 having a pressure balancer 38 disposed in a housing 32 in which is formed a chamber 48. A one-piece poppet unit 46 is mounted for movement in the chamber 48. The poppet unit 46 has a shaft 51 with a circular disc 106 to which is bonded... | 03/24/1998 |
| 4853607 | Non-isolated thermally responsive battery charger A non-isolated battery charger for direct connection to an AC source provides rectified DC current to the battery being charged. A thermostat in a heat conducting relationship with the battery senses battery temperature and discontinues the charging curre... | 08/01/1989 |
| 4848779 | Keyless chuck A keyless chuck includes a jaw housing with jaws that are advanced in respective guideways to grip a tool bit and retracted to loosen the grip on the tool bit. A jaw thrust member is coupled to the jaws and to a threaded spindle and is forced forwardly or... | 07/18/1989 |
| 4847513 | Power-operated device with a cooling facility A cordless power-operated device, such as a saw 20, is powered by a low level D.C. voltage provided by battery pack cells to operate the saw in a cordless mode. The cells are housed in a container 32 which fits into a cavity 23 formed in a housing 22 of s... | 07/11/1989 |
| 4835410 | Dual-mode corded/cordless system for power-operated devices A dual-mode system for operating electrically powered devices, such as hand-held power tools and appliances, includes a cordless battery pack that supplies the power and current demands of the device in a cordless mode or a corded voltage converter that s... | 05/30/1989 |
| 4835409 | Corded/cordless dual-mode power-operated device A corded/cordless dual-mode power-operated device, such as a household vacuum cleaner, can be operated in corded mode from a conventional power source and in a cordless mode using energy provided from an internal rechargable battery and which includes an ... | 05/30/1989 |
| 4827819 | Storable radial arm saw A radial arm saw includes a saw assembly pivotally mounted to a support unit which, in turn, is mounted to a wall or other support structure. The saw assembly includes a column that is connectable at one end to a saw table frame or the support unit so as ... | 05/09/1989 |
| 4784034 | Saw blades and saw assemblies A saw blade assembly comprises a laminated structure of three side-by-side parallel strips, one two or all of which may have spaced teeth formed along one edge. Where only one strip has teeth, it is sandwiched between the two other strips and the teeth ar... | 11/15/1988 |
| 4771542 | Hand-holdable electric reciprocating cutting tool A hand-held power cutting tool has a generally cylindrical casing, which can be grasped in the palm of one hand, and whose rear portion housed an electric driving motor disposed in the casing with its axis of rotation lying along the longitudinal axis of ... | 09/20/1988 |
| 4770316 | Power device housing with lubricant anti-wicking facility In a housing (22) for a right-angle grinder (20), a pair of clamshell sections (24) and (26) are joined along a midplane (28). The interior of the housing (22) is formed with a motor case (34) and a gear case (36). Clamshell section (26) is formed with a ... | 09/13/1988 |
| 4755130 | Apparatus for obtaining a fixing in a wall A fixing in a wall is made by drilling a hole, inserting the pin of a nozzle mounted on a hot melt gun into the hole and injecting molten polypropylene into the space between the pin and the hole. The polypropylene is allowed to solidify and the nozzle is... | 07/05/1988 |
| 4754579 | Hand-held power file with dust extraction arrangement A hand-held power file has an abrasive belt trained around spaced apart drive and idler pulleys. The drive pulley is located in a chamber and mounted upon an armature shaft of an electric motor. Also mounted upon the armature shaft is a fan that, in use, ... | 07/05/1988 |
| 4750567 | Rotary hammer driving mechanism A rotary hammer has a reciprocating piston of a pneumatic impact mechanism driven from a rotatable drive shaft. A coupling element is fixed on, and a drive element slidably mounted on, the drive shaft. These elements have interengageble tapered coupling s... | 06/14/1988 |
| 4749014 | Cutterhead for a power planer A cutterhead for a power planer has an elongated core with threaded holes for releasably mounting a pressure plate with a cutting blade being clamped between the pressure plate and the core. The core has a support surface contacted by the cover portion, a... | 06/07/1988 |
| 4735245 | Worktables having rip fences A worktable has a table top with a slot for reception of a saw blade of a hand-held circular saw when mounted below the table top. Two rip fences mounted on the table top are separately slidable in parallel adjusting slots for adjusting independently the ... | 04/05/1988 |
| 4727685 | Portable power file and belt tensioning arrangement therefor A hand-held powered file has an arm assembly carrying a pulley around which passes an abrasive belt. The arm assembly is urged into a position tensioning the belt by a spring. A control knob has a cam track which cooperates with a follower to relieve the ... | 03/01/1988 |
| 4715732 | Bearing assemblies for motors An air cooled bearing assembly for the armature shaft of an electric motor comprises a heat sink with an axial bore and spaced outwardly extending fins along its external surface. The fins are of a greater depth over part of their length and the junction ... | 12/29/1987 |
| 4710071 | Family of electric drills and two-speed gear box therefor A two-speed gear box for handheld electric drills and the like has the movable parts associated with gear changing on or associated with a lay shaft. Gear changing is preferably effected by moving a pair of dogs, slidably mounted in holes through a lay sh... | 12/01/1987 |
| 4707910 | Method of assembling electric motors A laminated core of a stator of a universal motor consists of two core parts each of which bounds a portion of a central opening through the stator. The stator has at least one field winding, and at least one longitudinal part of this field winding, runni... | 11/24/1987 |
| 4703852 | Accessory box An accessory box comprises a front and two sides. Each side is provided with a resilient lug which comprises a main portion which extends rearwardly to a vertical abutment and a clip which extends rearwardly from the main portion. When the accessory box i... | 11/03/1987 |
| 4693009 | Scroller jig saw A scroller jig saw has a pivoted locking lever spring biased into engagement with a rotatable scrolling control assembly to lock the latter, and therewith the saw blade, against rotation. A cam, preferably rotatably mounted on the scrolling control assemb... | 09/15/1987 |
| 4686893 | Cover assembly for an air moving device A novel and improved cover assembly for an air moving device such as a fan or air conditioner mounted in a wall or ceiling for drawing air therethrough. To prevent cold air from leaking through the device, the improved cover assembly is detachably connect... | 08/18/1987 |
| 4674257 | Method for obtaining a fixing in a wall and a nozzle for use in said method A fixing in a wall is made by drilling a hole, inserting the pin of a nozzle mounted on a hot melt gun into the hole and injecting molten polypropylene into the space between the pin and the hole. The polypropylene is allowed to solidify and the nozzle is... | 06/23/1987 |
| 4672292 | System for charging sets of rechargeable batteries The present invention relates to a system for charging a plurality of sets of rechargeable electric batteries incorporated in respective portable appliances. The system comprises, in combination: a DC constant current generator circuit (C) having first an... | 06/09/1987 |
| 4668855 | Supports for electric heating elements A support for an electric heating element comprises a former of generally cylindrical shape, made of a heat resisting material and having a longitudinal core from which extend spaced ribs that support an outer wall. Portions of the outer wall and of the r... | 05/26/1987 |
| 4648464 | Cultivating tool A cultivating tool comprises a housing, an electric motor mounted within the housing, a pair of soil working members which project from the housing, an elongate shaft connected at one end to the housing, and a handle at the other end of the shaft. The soi... | 03/10/1987 |
