Abstract: An electronically controlled pneumatic fastener driving tool. The tool is of the type having a body containing a cylinder with a piston/driver assembly therein, a firing valve actuable to introduce high pressure air into the cylinder to cycle the piston/driver assembly, a manual trigger, a safety trip, and an electronic control system. The electronic control system comprises a remote solenoid valve to actuate the firing valve, a microprocessor having inputs from at least the trigger and safety trip and an output to energize the solenoid of the remote valve to cycle the tool, a battery to energize the microprocessor and a rechargeable battery to energize the solenoid of the remote valve. The microprocessor determines the mode of operation of the tool and may be designed to provide two or more modes selectable by a mode selection switch. The input from the trigger is provided with a reed switch closable by the trigger and the input from the safety trip is provided with a reed switch closable by the safety trip.

Abstract: An electronically controlled pneumatic fastener driving tool. The tool is of the type having a body containing a cylinder with a piston/driver assembly therein, a firing valve actuable to introduce high pressure air into the cylinder to cycle the piston/driver assembly, a manual trigger, a safety trip, and an electronic control system. The electronic control system comprises a remote solenoid valve to actuate the firing valve, a microprocessor having inputs from at least the trigger and safety trip and an output to energize the solenoid of the remote valve to cycle the tool, a battery to energize the microprocessor and a rechargeable battery to energize the solenoid of the remote valve. The microprocessor determines the mode of operation of the tool and may be designed to provide two or more modes selectable by a mode selection switch. The input from the trigger is provided with a reed switch closable by the trigger and the input from the safety trip is provided with a reed switch closable by the safety trip.

Abstract: An electric powered multiple impact fastener driving tool comprising a handle portion, a main body portion, a guide block, a magazine, and a guide and biasing assembly mounted in the guide block and affixed to the magazine enabling shifting of the magazine within the guide block between an extended fastener starting position and a retracted fastener driven position. The main body portion contains an impact assembly comprising a motor driven cam wheel with a single drop-off, a cam follower roller mounted on a reciprocable hammer, a compression spring surmounting and abutting the hammer, and a fastener driver. For each rotation of the cam wheel, the cam follower roll lifts the hammer, compressing the spring and storing energy therein. At the cam wheel drop-off, the cam follower wheel and hammer drop under the influence of the spring and the hammer impacts the driver which imparts a blow to the fastener. The cam follower wheel does not contact the cam wheel immediately after drop-off.

Abstract: An electronically controlled pneumatic fastener driving tool. The tool is of the type having a body containing a cylinder with a piston/driver assembly therein, a firing valve actuable to introduce high pressure air into the cylinder to cycle the piston/driver assembly, a manual trigger, a safety trip, and an electronic control system. The electronic control system comprises a remote solenoid valve to actuate the firing valve, a microprocessor having inputs from at least the trigger and safety trip and an output to energize the solenoid of the remote valve to cycle the tool, a battery to energize the microprocessor and a rechargeable battery to energize the solenoid of the remote valve. The microprocessor determines the mode of operation of the tool and may be designed to provide two or more modes selectable by a mode selection switch. The input from the trigger is provided with a reed switch closable by the trigger and the input from the safety trip is provided with a reed switch closable by the safety trip.

Abstract: A fastener driving tool capable of locating a preformed hole in a first workpiece and driving a nail therethrough and into a second workpiece to attach the first workpiece to the second workpiece. The tool comprises a body having a main portion and a handle portion, a guide body, a drive track in the guide body, a driver axially shiftable in the drive track, a fastener containing magazine, a magazine cover, a manual trigger, and a trigger enabling safety. The magazine cover is supported by the guide body and the handle portion of the tool and contains the magazine. The magazine communicates with the drive track and is supported by a slide captively mounted on the guide body and axially shiftable therealong.

Abstract: An electronically controlled pneumatic fastener driving tool. The tool is of the type having a body containing a cylinder with a piston/driver assembly therein, a firing valve actuable to introduce high pressure air into the cylinder to cycle the piston/driver assembly, a manual trigger, a safety trip, and an electronic control system. The electronic control system comprises a remote solenoid valve to actuate the firing valve, a microprocessor having inputs from at least the trigger and safety trip and an output to energize the solenoid of the remote valve to cycle the tool, a battery to energize the microprocessor and a rechargeable battery to energize the solenoid of the remote valve. The microprocessor determines the mode of operation of the tool and may be designed to provide two or more modes selectable by a mode selection switch. The input from the trigger is provided with a reed switch closable by the trigger and the input from the safety trip is provided with a reed switch closable by the safety trip.

Abstract: A fastener driving tool capable of locating a preformed hole in a first workpiece, aligning the drive track of the tool with the hole, and thereafter driving a fastener, such as a nail, through the hole and into a second workpiece to attach the first workpiece to the second workpiece. The tool has a magazine comprising an outer portion affixed to the tool and its drive track containing guide body, and an inner portion containing a strip of nails and pivoted at its rearward end to the rearward end of the outer magazine portion. The inner magazine portion is pivotable within the outer magazine portion between a first position wherein the forwardmost nail of the strip extends well beyond the nose of the guide body serving as a probe to locate and enter the workpiece hole, and a second position wherein the forwardmost nail of the strip is still engaged in the workpiece hole and is properly aligned in the drive track to be driven by the tool driver through the first workpiece hole and into the second workpiece.

Abstract: A fuel dispensing nozzle is provided with a view glass/fuel flow indicator that are disposed between the main fuel valve and a downstream check valve. The view glass/flow indicator means comprise a pair of horizontally aligned view glasses. A plurality of embodiments illustrate the use of different sub-assemblies in providing the view glass/flow indicator functions, as well as different provisions for obtaining a seal that prevents leakage of fuel at the view glass units.

Abstract: An improved door-mounted combination intercom and viewer is provided including a pair of identical housings, each having a microphone and a speaker therein. The microphones are isolated from contact with the housings by a vibration damping material to prevent feedback.

Abstract: An apparatus for charging a dosimeter which has a capacitor connected between first and second electrodes and a movable electrode in a chamber electrically connected to the first electrode. The movable electrode deflects varying amounts depending upon the charge present on said capacitor. The charger apparatus includes first and second charger electrodes couplable to the first and second dosimeter electrodes. To charge the dosimeter, it is urged downwardly into a charging socket on the charger apparatus. The second dosimeter electrode, which is the dosimeter housing, is electrically coupled to the second charger electrode through a conductive ring which is urged upwardly by a spring. As the dosimeter is urged into the socket, the ring moves downwardly, in contact with the second charger electrode.

Abstract: A card reader includes a housing enclosing the operating components thereof which is provided with a card insertion slot. A baffle is movable between blocking and unblocking positions to block and unblock the card insertion slot, as desired. Located interiorly of the housing is a card carriage which reciprocates between a first limit position proximate the card insertion slot and a second limit position remote therefrom for transporting an inserted card along a path past a transducer located inside the housing proximate the second limit of travel for reading information from the card. A cam is provided on the carriage which cooperates with a cam follower associated with the baffle for camming the baffle from its card insertion slot blocking position to its card insertion slot unblocking position and vice versa, as the carriage moves toward and away from, respectively, its first limit position proximate the card insertion slot.