Patents Examined by Glen R. Swann, III
  • Patent number: 5276429
    Abstract: A portable generator generates a predetermined signal and has an output connected to a first transducer for transmitting the above signal to the body of a first operator (e.g. physician, nurse, etc.); and processing means for analyzing a signal picked up by a second transducer on a second operator (e.g. a patient, etc.) and detecting the significant presence of the above predetermined signal, as a consequence, for example, of direct or indirect contact between the first operator and the second operator.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: January 4, 1994
    Assignee: Igea S.r.l.
    Inventors: Ruggero Cadossi, Donata Marazzi
  • Patent number: 5276433
    Abstract: A temperature sensor has a flexible nylon tube connected by a fluid-tight coupling to a metal bellows within a metal housing. The interior of the tube and bellows is filled with a pressurized liquid whose critical temperature corresponds to a threshold temperature to be sensed. The pressurized liquid holds the bellows extended, holding an actuating piston back against the action of a spring. When the threshold temperature is reached, the liquid in the tube must boil and ruptures the tube, causing the bellows to collapse and the actuating piston to move. A projecting actuator then mechanically initiates a response such as the closing of a damper in an air-conditioning duct.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: January 4, 1994
    Assignees: Brissco Equipment Limited, David L. Melton
    Inventors: Martin W. Booker, David L. Melton
  • Patent number: 5274360
    Abstract: A fixed point for confirmation is photographed by a camera prior to the start of a robot job, to obtain photographing data (S1, S2), a position data is determined from the photographing data (S3), and an error (.DELTA..epsilon.) between the position data and a reference position data (S4) is determined. When this error (.DELTA..epsilon.) exceeds a predetermined tolerance (.epsilon.a), a camera positional dislocation alarm is issued (S6). With this arrangement, the positional dislocation of the camera can be confirmed prior to the start of a job, whereby the job can be safely carried out.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: December 28, 1993
    Assignee: Fanuc Ltd.
    Inventors: Atsushi Watanabe, Taro Arimatsu
  • Patent number: 5274358
    Abstract: A personal safety device controlled by a microprocessor which responds to commands, such as activation and deactivation commands. The microprocessor acts to control sound emitted from two separate speakers. The sound is controlled through digital outputs of the microprocessor such that the sound emitted by the first speaker has a first sinusoidal component sin(a) and the sound emitted by the second speaker has a second sinusoidal component sin(b) yielding a complex tone when perceived by a human ear. The personal safety device further allows for coded deactivation thereby rendering it difficult for a third-party without knowledge of the code, such as a would-be attacker, to deactivate the device. Further, the personal safety device provides a detection circuit for detecting a low battery condition. Finally, a method for operating the device is disclosed.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: December 28, 1993
    Assignee: Egis Personal Safety Systems
    Inventor: Bruce A. Janis
  • Patent number: 5274357
    Abstract: A combined alarm system and window covering assembly includes a top housing, a bottom rail, a covering, a continuous conductive wire which has a first end and a second end and an alarm device. The alarm device has a first input terminal and a second input terminal. The covering is mechanically coupled to the top housing and the bottom rail. The continuous conductive wire extends from the top housing down to the bottom rail and up from the bottom rail to the top housing. The first and second ends of said continuous conductive wire are electrically coupled to the first and second input terminals of the alarm system. The continuous conductive wire is coupled with the bottom rail as a main pull string for raising and lowering the bottom rail and the covering.
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: December 28, 1993
    Inventor: Dennis E. Riordan
  • Patent number: 5272467
    Abstract: An apparatus for detecting and reporting the presence of liquid on a surface has a detector unit that rests on the surface with the detector unit including at least one pair of spaced-apart electrodes for conductively detecting the liquid, with the detector unit resting on the surface via the electrodes, and with the detector unit further including a sensor that is directed toward the surface and serves for optically detecting the liquid. The apparatus also comprises an operations unit, with the detector unit and the operations unit being electrically interconnected.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: December 21, 1993
    Inventor: Horst Krauleidies
  • Patent number: 5270686
    Abstract: A container has a container cavity bounded by top, bottom, and side walls, as well as a rear wall, with an entrance cavity at forward ends of the side walls, with the side walls having recesses arranged for ease of displacement and removal of a pizza container positioned within the delivery container. Rollers are mounted in a parallel relationship coextensively relative to the top wall for ease of insertion and removal of a pizza container relative to the delivery container. An audio alarm is mounted to the container actuated in response to inclination of the container in use.
    Type: Grant
    Filed: May 21, 1992
    Date of Patent: December 14, 1993
    Inventor: Raul Martinez
  • Patent number: 5268671
    Abstract: A battery operated combination burglar alarm and door chime is mounted to the inside of a door. The alarm mode is capable of being armed from either side of the door. A dead bolt slide cooperates with a plate fastened to the door frame to manually arm the device from the inside with the door closed. A plunger slide also cooperates with the plate fastened to the door frame and a mode selection switch to effect either a chime mode or a delayed alarm mode when the door is opened. The delayed alarm mode being activated with the door open to permit pre-arming the device followed by automatic arming of the device when the door is closed. Depending upon the alarm mode of operation selected, unauthorized opening of the door can either lock the door and instantaneously sound an alarm or sound an alarm after a predetermined time when the door is opened. A combination switch deactivates the alarm and chime modes and another switch can alter the combination.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: December 7, 1993
    Inventor: Raymond J. Novotny
  • Patent number: 5266929
    Abstract: In a metal cutting tool wear indicator system, a ratio of an estimated ultrasonic emission signal from a metal cutting process to a measured ultrasonic emission signal, e.g. UE/UE is utilized in place of a prior ratio of horsepower to ultrasonic emission, e.g. HP/UE, together with a continuous revision of the estimator during the cutting process.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: November 30, 1993
    Assignee: General Electric Company
    Inventors: Jerry H. Carmichael, Edward N. Diei
  • Patent number: 5266924
    Abstract: A shock and vibration detecting device comprising a sensor enclosed in an electromagnetic shielded and dust-proof case to send out a signal to an amplifying circuit constituted mainly by an operational amplifier once it picks up a shock and/or vibration signal. The output of the amplifying circuit is connected to a driving circuit to provide an output signal. A delaying circuit is used to lengthen the active period of the output signal. A voltage regulation circuit provides a regulated and filtered voltage to the above-mentioned circuits.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: November 30, 1993
    Inventor: Charles Chung
  • Patent number: 5266927
    Abstract: A personal protection device includes a generally dumbbell shaped hollow housing with an operable lever mounted in the central portion of the housing. An electrical circuit within the housing connects first and second switches to a power source and a speaker to produce a high decibel sound when both switches are closed. The first switch is connected to the lever and is maintained in an open position by gripping the housing and lever. The second switch is operable to the open position only upon operating a numeric code or other key lock system. Once the key lock switch has been closed, the speaker will be activated upon release of the lever on the dumbbell. A relay in the electrical circuit will bypass the first switch connected to the lever, once the relay has been activated, so that the speaker cannot be turned off except by opening the lockable second switch.
    Type: Grant
    Filed: October 1, 1991
    Date of Patent: November 30, 1993
    Assignee: Board of Regents of the University of Nebraska
    Inventor: James L. Sanders
  • Patent number: 5264829
    Abstract: Signals received by an electronic article surveillance system are processed digitally to ascertain the variation in magnitude of successive signals and to prevent the actuation of an alarm when the variation exceeds a predetermined amount; and signals whose frequency components have been phase shifted from a filtering operation are restored by passing them into a signal delay circuit, tapping the delay circuit at several points therealong into associated signal channels selectively amplifying or attenuating the signal in each channel and combining the signals in each channel.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: November 23, 1993
    Assignee: Knogo Corporation
    Inventors: Christopher R. Paul, David T. Lundquist
  • Patent number: 5264834
    Abstract: A safety message announcing device is interconnected to a machine so as to make the machine inoperative until the safety message has been announced. A control signal is provided along with the safety message. A control mechanism interconnected to the start switch of the machine will only operate when the control signal is received. The control signal may take the form of multiple fixed frequency tones announced along with the message, with the control mechanism tuned to the tones to only enable the machine when the tones are heard by the control mechanism, thus assuring that the message has been announced as well. The control signal may take the form of a code that must be input by the operator before the machine will operate. This may be done with a visual as well as a sound annunciator.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: November 23, 1993
    Inventors: Howard Silken, Edward Frieling
  • Patent number: 5262944
    Abstract: A centralized patient monitoring system includes a central station which receives patient information from bedside monitors. The patient information is presented on a video display screen and may include patient demographic information, physiological parameters and a waveform. The display screen is divided into sectors, with each sector containing information for one patient. When an alarm condition occurs at one of the bedside monitors, the alarm condition is transmitted to the central station and is displayed in the corresponding sector of the video display screen. In addition, the alarm condition is highlighted by changing the background in the alarming sector from its normal color, typically black, to a neutral color such as blue, which is easily distinguishable from the normal color and which does not obscure the patient information being displayed. The background of the sector is changed back to the normal color when the alarm is acknowledged by a user.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: November 16, 1993
    Assignee: Hewlett-Packard Company
    Inventors: Steven J. Weisner, James M. Grady, Wilhelm Meier, Frank Weber
  • Patent number: 5260694
    Abstract: An article tracking system includes a delivery zone transmitter associated with at least one physical article delivery location for transmitting data identifying that physical location, a zone detector carried by at least one manually operated article delivery vehicle for detecting the physical proximity of the vehicle to the delivery zone, and a signal device operatively associated with the zone detector for outputting a signal indicating the physical proximity of the vehicle to the delivery zone. Therefore, an operator of the vehicle is informed that the vehicle is in the proper delivery zone for delivery of an article.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: November 9, 1993
    Assignee: NDC Automation, Inc.
    Inventor: Bertil Remahl
  • Patent number: 5260690
    Abstract: A responder assembly for an article inventory control system employs a plurality of sensors for detection of sensitized markers attached to inventory items. By processing signals from each of the plurality of sensors, a detection pattern is provided to determine whether none, one, or more than one marker is present within a zone of sensitivity.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: November 9, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Graeme R. Mann, Rick L. Naylor
  • Patent number: 5258745
    Abstract: A temperature sensor (10), which is connected to a sampling/recording meter (14), is imbedded in a diaper (22). The meter measures and records the temperature of the sensor at time intervals of, for example, one minute over a predetermined period of, for example, three days. The temperature and time data are then loaded from the meter to a computer (30), which causes a printer (40) to plot temperature versus time data in graphical format, and numerical format. Voiding events are identified. Thereafter, at a short time before the person will void, the person can voluntarily use a toilet or bed pan either alone or with the assistance of care giver. This voluntary voiding is an example of intervention. The meter includes an event button (44) that allows the recording and later printing of a symbol representing a specific event and the time the event occurred. The symbols may be used in identifying voiding events.
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: November 2, 1993
    Inventor: Joyce C. Colling
  • Patent number: 5258742
    Abstract: A gauze-counting apparatus for surgical use, includes a support frame on is mounted a receiver hopper and a recording chamber. The hopper has a minimum passage section for a single gauze in which is mounted a photoelectric cell, coplanar fashion, the beam of which is broken by the passage of each gauze. The recording chamber includes a power supply, a counter connected to the photoelectric cell, an alarm that is activated when the counter reaches a preset number, and a functioning indicator.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: November 2, 1993
    Inventors: Jose Soldevila Domingo, Jose Grau Galter, Abundio Matias Munoz
  • Patent number: 5258743
    Abstract: A piezoelectric resilient arm contacts a projected object and establishes a reference relative to sensitivity means and differential detector means including feedback coupled amplifier means which operates in cooperation with a balanced square wave generator means for producing a switched output upon detecting motion. An alarm signal is produced which has a duration related to the rate of change of movement of the piezoelectric resilient arm. Programmable delay means appropriately enables an annunciator and/or wireless communication link to a system controller.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: November 2, 1993
    Assignee: Uniplex Corporation
    Inventors: Jon Nelson, William W. Williamson
  • Patent number: 5257008
    Abstract: A compressed air system includes an air dryer which includes a desiccant for drying compressed air passed through the desiccant before the compressed air is received in a storage reservoir. A humidity sensor is installed in the system downstream of the desiccant for measuring the relatively humidity of the air after it passes through the air dryer. A control module is programmed such that if the humidity level increases above 80%, a timer is started. If a time period of several hours elapses without the humidity level decreasing below 50%, a depleted desiccant and/or a system malfunction is indicated, and an appropriate warning device is actuated.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: October 26, 1993
    Assignee: Allied-Signal Inc.
    Inventor: Naman A. Elamin