Abstract: A cylindrical lock assembly (20) includes an inside subassembly (22) and an outside subassembly (24) which are assembled with a door (326). Each subassembly (22,24) includes a rose liner (26,38), a return spring cassette (28,40), a rose (30,42), a lever (32,46) and a lever insert (34,48). The inside subassembly (22) also includes a turn button (36) and the outside subassembly (24) includes a cylinder lock (44).A pair of mounting blocks (258,260) are contained within the chassis (50) to facilitate threaded connection of the chassis to the rose liners (26,38) which are assembled on respective sides of the door (326) and thereby provide an anti-rotation mounting for the chassis.

Abstract: A single handleset 10 with an adjustable retracting mechanism 11 includes a handle 20 and thumbpiece 32 which operates a rack 48. A pinion 70 is in mesh engagement with rack 48 at all times. A spindle 84 is connectable to pinion 70 in either of two positions determined by the righthand or lefthand orientation of a door 18 to which assembly 10 is mounted. Spindle 84 is adjustable without decoupling pinion 70 from rack 48 to insure proper orientation of the spindle relative to the pinion for effective operation of a latchbolt assembly 140.A double handleset 210 with the adjustable latch retracting mechanism 11 includes a pair of handle units 212 and 234 and also provides the versatility of adjusting spindle 84 independently of pinions 70 to accommodate either a righthand or lefthand orientation.

Abstract: An apparatus for boosting the flow energy of water in a showerhead comprising an air inlet port for providing ambient air; a water conduit for receiving water from a water supply source and at least one mixing chamber being in fluid communication with the water conduit and the air inlet port for receiving the water and the air. The at least one mixing chamber has a rearward opening which tapers towards a forward reduced portion such that the velocity of the water entering the opening is increased and such that the air is mixed with the water within the chamber to provide a turbulent mixture of air and water. The above described apparatus is completely contained within a showerhead or embodied as an adapter unit which may be installed between a water outlet pipe and a typical prior art showerhead.

Abstract: A mounting template 10 is formed from a flexible strip 12 of paper material and has indicia printed or formed on a first face 14 thereof. The indicia defines hole patterns A, B, C and D each of which include circles 18 representing hole locations. A rear or second face 16 of the strip 12 has applied thereto a low-tack pressure-sensitive backing 28 of adhesive material which is covered by a removable cover 30. The mounting template 10 can be adhesively mounted on a wall surface and the indicia provides precise and accurate locations of holes to be formed in the surface. The holes facilitate attachment of brackets to the surface which support, for example, bathroom fixtures or accessories.

Abstract: The invention provides a lock with a forward and reverse action bolt element and a lock cylinder which precedes the operating region of the bolt element into which the force for shifting the bolt element is to be introduced. The lock comprises an arresting element which can be fused at least locally by the effect of heat on the lock cylinder and which, after fusion, arrests the bolt element against reverse lock actuation.In an alternative embodiment, the lock may comprise a coupling between the operating region and a lock-actuating element spatially separated from it and protected by the lock cylinder, which coupling can be broken by fusion due to the effect of heat on the lock cylinder.

Abstract: An entrance handleset 20 is assembled on a door 22 and includes a handle 24 which is connected at an upper end to an upper rose 26 and at a lower end to a lower rose 28. A thumbpiece 30 extends from upper rose 26 just above the upper end of handle 24 to facilitate operation of a latch (not shown) which is assembled with door 22. At the juncture of handle 24 and upper rose 26, the handle is formed with a spherial face 26 recess 62 to permit swivel or universal adjustment of the handle relative to the upper rose.

Abstract: A door latch assembly 10 includes a rack 102 which is moved upon depression of a thumbpiece 12. Movement of the rack 102 results in rotation of an enmeshed pinion 136 and an assembled spindle 152. As the spindle 152 rotates, a latch 26 is moved from a latched position to an unlatched position to thereby permit opening of a door 20 on which the door latch assembly is mounted.When it is desired to lock the door 20, a key-operated lock cylinder 16 is operated to place into motion facilities for moving the rack 102 into a disabled poisition whereafter depression of the thumbpiece 12 will not result in movement of the rack.As the rack 102 is moved to the disabled position, teeth 104 of the rack remain enmeshed with teeth 138 of pinion 136. When the rack 102 is again moved to the enabled positon, the teeth 104 and 138 remain enmeshed and thereby avoid any deleterious reactions had they been separated upon disablement of the rack 102 and re-enmeshed upon enablement thereof.

Abstract: A fluid valve includes a valve body having a fluid inlet and a fluid outlet. A valve seat formed from the valve body between the fluid inlet and fluid outlet for the passage of fluid therebetween. A movable valve member formed from ceramic material is positioned in the valve body between the valve seat and the fluid outlet for controlling the flow of fluid through the valve seat. The valve member is axially movable relative to the valve seat, with the quantity of fluid flowing through the seat to the fluid outlet being directly proportional to the distance between the valve member and the valve seat.

Abstract: A drive clutch mechanism for a pop-up oscillating irrigation sprinkler which serves to protect the internal components of the sprinkler against forceable rotation of the pop-up assembly by vandals, or others, and which when operated does not disturb the previous setting of the trip mechanism in the sprinkler.

Abstract: An isolated battery charger suitable for charging lead-acid batteries includes a high-frequency power conditioner that rectifies source current to a DC value and chops the current at a comparatively high frequency, e.g., 25 KHz, using a pair of MOSFET switches (138 and 140) to provide power pulses to the primary of a step-down transformer (T.sub.1). The output of the step-down transformer (T.sub.1) is presented to an enhancement mode MOSFET (206) in series circuit with the battery (B) to be charged with the gate bias of the MOSFET controlled in response to the sensed voltage of the battery to provide current to the battery as a function of its charge. Control circuitry is provided to limit charging to a small `trickle` level in the event the battery (B) is fully discharged to increase its charge level prior to initiating the full charge current. The provision of a voltage converter (100) operating at a relatively high frequency allows use of a lightweight and compact transformer (T.sub.

Abstract: A battery charger 10 includes a capacitor 20 which establishes a level of current sufficient to fast charge in one-hour a battery 18 having from one to twenty cells. An SCR 16 is controlled by a timer 42 to initially delay the supply of current while determining whether the battery 18 is hot or cool. If battery 18 is cool, charger 10 proceeds to fast charge the battery. After battery 18 is fully charged, the battery heats to a temperature where a NTC thermistor 58 responds to trigger a second timer 52 which controls SCR 16 to stop the fast charging operation. Charger 10 is then controlled to prevent the charger from thereafter re-entering a fast charge mode.If battery 18 is initially hot, charger 10 is controlled to further delay the initiation of a fast charge operation until the battery cools to or below the charge-start temperature.

Abstract: A lock cylinder suitable for mortise locks comprises mechanically operating tumbler pins controlled by a key and at least one electromagnetic tumbler. The cylinder is arranged in a cylinder casing and comprises a coil as well as a locking member which can be displaced by electromagnetic forces for an additional tumbler pin which is spring-loaded in the locking direction and with a reading device which detects a key code. The locking member is pivotally mounted in a recess in the additional tumbler pin and enters the locking position in front of a stop on the cylinder casing.

Abstract: A key switch operable by a cylinder lock, which switch comprises a cylinder housing and a cylinder core arranged to be rotatable within the housing, which is coupled with a non-conducting switch rotor and a switch casing base, in which the switching arrangement is located and the switch rotor is guided.The cylinder housing is made of insulating material and forms the top of the switch casing and, on its end face facing the switch rotor, has at least one annular rib which is concentric with the axis of the switch rotor, and which engages in an annular groove of the switch rotor, which groove has a corresponding contour.