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| Number | Title | Issue Date |
| 6729045 | Tap device for clogging shoes A clogging shoe tap device having a first plate for attachment to a shoe, and a second plate pivotally attached to the first plate along a transverse line of attachment, the second plate also having a transverse balance axis, wherein the transverse line of attachmen... | 05/04/2004 |
| 6646444 | Plug-in photoionization sensor A sensor for detecting volatile organic compounds in ambient air by positioning a detection cell adjacent a gas discharge device to cause molecules of organic compounds to become ionized, and applying an electric field across the collection cell to attrac... | 11/11/2003 |
| 6640614 | Package burst pressure simulator An apparatus and method for simulating a package pressure burst condition for calibrating a package pressure burst detector, where the package pressure burst detector is connected to a pressure tank, and the detector applies an air flow into the tank to g... | 11/04/2003 |
| 6625277 | Low current signal compression circuit A low voltage and low current compression circuit for connection between a telephone receiver and a telephone headset earphone, the circuit having an operational amplifier with variable gain, the gain being determined by the output signal level and by the... | 09/23/2003 |
| 6609414 | Apparatus for conducting leakage tests on sealed packages A fixture for testing a sealed container for possible leakage, having a removable cover and a silicon gel gasket affixed to the undersurface of the cover, and having a lower housing with a cavity for receiving the sealed container, the container top surfa... | 08/26/2003 |
| 6460405 | Method for measuring gas leakage from sealed packages A non-destructive method for testing sealed packages for leakage, particularly packages having a gas-permeable portion and a non-gas-permeable portion, by applying a temporary barrier over the gas-permeable portion, wherein the temporary barrier has two a... | 10/08/2002 |
| 6450011 | Pressure measurement method for gas leakage from sealed packages A non-destructive method for testing sealed packages for leakage, particularly packages having a gas-permeable portion and a non-gas-permeable portion, by applying a temporary barrier over the gas-permeable portion, wherein the temporary barrier has an ap... | 09/17/2002 |
| 6414310 | Automatic control circuit for infrared detectors A circuit for measuring the relative absorption signals from an infrared detector to measure gas concentrations in the detector, wherein an absorption gas wavelength signal is compared to a reference gas wavelength signal, through circuits and a computer ... | 07/02/2002 |
| 6408069 | Compatibility circuit for telephone headset A selectable impedance matching circuit for matching the impedance of a telephone handset adapted for either a carbon microphone input or an electronic microphone input to the impedance of a headset microphone. The selectable impedance matching circuit in... | 06/18/2002 |
| 6354138 | Validation process for permeation measurements through closed containers A method for validating permeation measurements through closed containers including closure members, by making a first measurement of permeation through a container of a first size, and making a second measurement of permeation through a container of a se... | 03/12/2002 |
| 6018987 | Apparatus for measuring gas transmission through container closures A fixture for holding a plastic or glass container and container closure member in a fixed position for measurement of the gases escaping through and around the closure member. A first clamp positions a closure cover over the closure member, and a second ... | 02/01/2000 |
| 6009743 | Apparatus and method for online or offline measurement of vapor transmission through sheet materials An apparatus for measuring and comparing the permeant transmission rate through film material on a moving conveyor, including a first and second chamber through which the film material is moved, a permeant supply to the first chamber and a permeant detect... | 01/04/2000 |
| 5080289 | Spraying voltage control with hall effect switches and magnet An electrostatic spray gun is provided with a spraying voltage control. The contol is produced by Hall effect or magnetoresistive circuitry incorporated with the circuitry of the spray gun. A variably positionable magnet is provided so that the operator m... | 01/14/1992 |
| 5076761 | Safety drive circuit for pump motor A DC motor drive system for mechanically linking to a reciprocable pump, having safety circuits for disconnecting power from the system upon detection of excessive line voltage variations, excessive line current variations, excessive pressure demands, and... | 12/31/1991 |
| 5073709 | Electrostatic spray applicator with two-channel optical monitoring system An electrostatic spray applicator system of the type utilizing pressurized air from an external source to develop the electrical voltage driving conditions within a spray applicator. The electrical operating conditions are represented by electrical signal... | 12/17/1991 |
| 5054767 | Conveying apparatus for paper products, in particular in stream form A conveying apparatus for paper products in stream form having two parallel belt elements supported by rollers is made up of individual standardized self-contained prefabricated constructional elements which at least at a side lying in the product flow di... | 10/08/1991 |
| 5054153 | Golf club cleaner The present invention relates to devices for cleaning golf clubs and, more particularly, to a spherical device that has a circumferential band of bristles.... | 10/08/1991 |
| 5054893 | Electro-optic cell linear array An electro-optic cell linear array, such cells being commonly referred to as PLZT cells or Kerr cells, for use in an electro-optic imager wherein the electrode lines are placed at from 15° to 75° relative to the centerline of the array. The advantages o... | 10/08/1991 |
| 5053116 | Device for humidifying gases without changing oxygen content A device for humidifying gases without oxygen comprised of a gas conduit for passing the gases through the device to be humidified having a portion of the conduit being permeable to water but a barrier to electrolytes. The portion of the gas conduit is po... | 10/01/1991 |
| 5050877 | Warm-up weight for softball bat The present invention is a warm-up weight for softball bats that includes an open-ended cylindrical, tubular section integrally connected to a conical, tubular section. The conical section may be wedged against a tapering portion of a softball bat while t... | 09/24/1991 |
| 5048995 | Coupler for tubular frame members An improved coupler for use in assembling display frames is provided. The coupler includes a male plug, a female receptacle and a locking lever. After insertion into frame members, the plug and receptacle are engaged and locked in place. The coupler enabl... | 09/17/1991 |
| 5046305 | Sleever module for disk packaging unit A diskette sleever device having a hopper for supporting a stack of empty sleeves, and a feed mechanism for receiving unsleeved diskettes, wherein the topmost empty sleeve is held in a predetermined position along the diskette transport path, and a pair o... | 09/10/1991 |
| 5033198 | Four-wheel alignment system A wheel alignment system including four vehicle supporting members and four alignment fixtures is provided. The fixtures may be attached to the supporting members or directly to a vehicle wheel and include a guide block and a plurality of swiveling rim cl... | 07/23/1991 |
| 5031075 | Double-sided logic cage A double-sided central electronics complex (CEC) is provided for increasing the logic card density in a logic cage or CEC. Specifically, two logic cages or sub-enclosures are integrated, sharing one backplane card so that logic elements may be plugged int... | 07/09/1991 |
| 5030918 | Portable gauge for measuring thickness variations of thin plastic film A capacitance gauge system is described for determining the thickness of thin-film non-conducting material (i.e. polyethylene, vinyl, etc.). An elongated capacitance sensing head is applied to one side of the material being measured thereby disturbing the... | 07/09/1991 |
| 5029891 | Infant stroller A lightweight infant stroller is provided for carrying an infant while walking or while walking, running or jogging at a faster than walking pace. The stroller includes three large diameter wheels arranged in a tricycle configuration, a lightweight foldab... | 07/09/1991 |
| 5023754 | Double-sided backplane assembly A double-sided backplane assembly is provided for increasing the logic element density in a logic cage or CEC. The backplane assembly is multi-layered with a backplane card centrally located between a stiffener and an EMC shield affixed to each side there... | 06/11/1991 |
| 5018630 | High-capacity lift crane assembly A high-capacity lift assembly consisting essentially of a multipurpose platform and a pair of commercially available truck cranes or crawler cranes wherein the lifting capacity of the respective cranes is combined to create an overall assembly capable of ... | 05/28/1991 |
| 5016685 | Device for sliding and floating a boat lift The present invention is a device for attachment to the leg of a boat lift, wherein the device has a housing with a lower surface of substantial area and an air entrapment volume therein; the air entrapment volume is coupled via a connectable air step to ... | 05/21/1991 |
| 5005851 | Truck mounted jeep having adjustable axle and loading capacity A jeep for use with a vehicle for carrying heavy loads on conventional roadways. The jeep is supported by many independent wheel/axle units mounted for transverse movement relative to the jeep. A fifth wheel movable in two orientations, vertical and longi... | 04/09/1991 |
| 5006710 | Recognition and processing of waveforms A flame detector has a sensor for producing a digital waveform representing a flickering flame. Its turning points are detected and the magnitudes between successive such points are measured. The value of each such magnitude is plotted on a graph whose ho... | 04/09/1991 |
| 4995518 | Detachable floating counterweight A portable crane having an outwardly-extending counterweight arm and detachable counterweight for detachment therefrom, for transport of said crane separate from transport of the counterweight. The counterweight has a base which may be extended and retrac... | 02/26/1991 |
| 4995645 | Elbow connection for pneumatic conveying system An elbow connection for pneumatic conveying systems is provided. The elbow has an inlet opening, an outlet opening and a curved area of short radius extending therebetween. The section of the elbow between the inlet and outlet openings has a cross-section... | 02/26/1991 |
| 4996660 | Selection of divisor multipliers in a floating point divide circuit A multiple selector logic circuit for selecting divisor multiples in 2-bit, non-restoring divide sequences, which provides a proper and accurate quotient result and remainder, and which produces rounding and indication of exact or inexact result in confor... | 02/26/1991 |
| 4993962 | Closed type connecting block A closed type connecting block including a shutter which close and open an opening formed on a housing and which is biased toward a position to close the opening. The shutter and the housing are formed with notches which sealingly receive a core inserted ... | 02/19/1991 |
| 4991813 | Frameless portable display A lightweight portable display support incorporating a display panel, including two vertical support columns, each column formed of two sections of elongated flexible material, typically plastic, wherein one section of material has a width dimension large... | 02/12/1991 |
| 4984978 | Divider head assembly A divider head assembly for attachment to a dividing and rounding machine, the divider head assembly incorporating a cover plate and attached plug plate, both of which have a central aperture therethrough. A cutter blade holder has a neck which slidably p... | 01/15/1991 |
| 4984133 | Unitized central electronics complex construction An enclosure is provided for containing the logic elements and ancillary components for computing systems. The enclosure is a unitized central electronics enclosure (CEC) wherein the primary structural element is the enclosure for the logic elements. This... | 01/08/1991 |
| 4978134 | Foldable towing hitch for vehicles A foldable towing hitch attachable to a vehicle, having a pair of articulately attached arms extendable therefrom, one of said arms being foldable for collapsing both arms against the vehicle for storage, and further having a hitch bracket retaining the e... | 12/18/1990 |
| 4979142 | Two-bit floating point divide circuit with single carry-save adder Apparatus and method for performing floating point divide operations in 2-bit, non-restoring iterations, wherein multiples of the divisor are formed by selective gating of one or more representations of the divisor into a single 3-input adder circuit, to ... | 12/18/1990 |
