Element Wear Type Patents (Class 116/208)
  • Patent number: 6742472
    Abstract: A pressure measurement method using a pressure measuring film in which a toner layer with a definite thickness is held between an adhesive layer formed on a first support and an inactive adhesive layer formed on a second support. Prior to applying the pressure to be measured to the measuring film, the inactive adhesive layer is activated to have an adhesive property. After pressure to be measured is applied to the film, the first support is removed and the applied pressure is determined based on the amount of toner attached to the second support. Using a toner having extremely small size, an extremely low pressure applied to an extremely small contact area can be measured. Also the pressure measuring film is not affected by use conditions (temperature, humidity). The inactive adhesive layer may be formed of a thermoplastic resin adhesive which can be activated by heating to become adhesive.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: June 1, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Masao Shigyo
  • Patent number: 6672245
    Abstract: A wear indicating foot for use on the bottom of a leg of a mobility assisting device having a coupler for coupling the foot to the leg. A ground engaging base opposite the leg has a bottom surface for contact with the ground. An upper surface extends laterally from the coupler opposite the bottom surface. At least one void opening on the upper surface extends into the ground engaging base in a direction towards the bottom surface. The at least one void opening has a predetermined depth so that excessive wear of the bottom surface is indicated by the bottom surface contacting the void opening.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: January 6, 2004
    Assignee: KDB Engineering
    Inventor: Kerry John Ford
  • Patent number: 6615639
    Abstract: A seal for preventing leakage of fluid from between a first member and a second member the second member is capable of moving toward and away from the first member, the seal is adapted for engaged contact with the first member and the second member so as to prevent leakage of fluid between the first member and the seal and between the second member and the seal, the seal being more easily deteriorated than the second member such that friction between the seal and the second member wears the seal faster than the second member, the seal being adapted to retain a fluid tight seal against the second member as long as the seal has not worn beyond a specified depth; and a conductor for placement about the second member, the conductor being attached to the seal at the specified depth so as to contact the second member when the seal has worn to the specified depth, such that the existence of electrical discontinuity between the conductor and the second member indicates that the seal requires replacement, the conducto
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: September 9, 2003
    Inventor: Ralph Heinzen
  • Patent number: 6594904
    Abstract: A shaving unit that comprises at least one blade and a skin engaging member that has a surface for engaging the user's skin adjacent the blade edge is described herein. The shaving unit may be of a disposable cartridge type adapted for coupling to and uncoupling from a razor handle or may be integral with a handle so that the complete razor is discarded as a unit when the blade or blades become dulled. The blade edge (or edges) cooperate with skin engaging surfaces to define a shaving geometry. The skin engaging member is comprised of an elongated sheath (or skin engaging layer) made of a mixture of water insoluble matrix and an effective amount of shaving aid and a rigid core (or non-skin engaging layer) extending axially through out said sheath. The axial position of the core need not be through the central axis.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: July 22, 2003
    Assignee: The Gillette Company
    Inventor: Mingchih M. Tseng
  • Publication number: 20030094125
    Abstract: A lead edge feed wheel mounted on a metal wheel rim for use in the feed unit of an industrial sheet printing machine, the lead edge feed wheel having a wheel body, and a face layer fixedly covered on the periphery of the wheel body, the face layer having a color different from the color of the wheel body, and a wall thickness equal to the maximum thickness of the lead edge feed wheel allowed to be worn away.
    Type: Application
    Filed: November 20, 2001
    Publication date: May 22, 2003
    Inventor: Hung Ta Hsueh
  • Patent number: 6564909
    Abstract: A vehicle braking member has a block of friction material cooperating in sliding manner with a respective member for braking, and supports a wear detector wherein a resistive element, consumed simultaneously with the block of friction material, has a first electric terminal set, in use, to a reference potential, and a single second electric terminal cooperating in sliding manner with the member for braking so as to be set to the same potential as the member for braking.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: May 20, 2003
    Assignee: I.C.P. S.r.l.
    Inventor: Tancredi Razzano
  • Publication number: 20030019419
    Abstract: A wear indicating foot for use on the bottom of a leg of a mobility assisting device having a coupler for coupling the foot to the leg. A ground engaging base opposite the leg has a bottom surface for contact with the ground. An upper surface extends laterally from the coupler opposite the bottom surface. At least one void opening on the upper surface extends into the ground engaging base in a direction towards the bottom surface. The at least one void opening has a predetermined depth so that excessive wear of the bottom surface is indicated by the bottom surface contacting the void opening.
    Type: Application
    Filed: July 17, 2002
    Publication date: January 30, 2003
    Inventor: Kerry John Ford
  • Patent number: 6512453
    Abstract: A device for ABS-integrated brake pad wear indication in a motor vehicle in which all line paths are constructed to avoid current loops and induction surfaces. All the wheel speed and pad wear signal lines respectively lead to the ABS or ABS/ASR control unit in a single strand or are combined at least via common fixings, grommets, intermediate connecting plugs and a single terminal connecting plug. Owing to coding of different warning signals for, e.g., ABS, ASR and brake pad wear, the signal connection between the ABS or ABS/ASR control unit and the instrument cluster in the dashboard is reduced to a single line.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: January 28, 2003
    Assignees: DaimlerChrysler AG, Richard Hirschmann GmbH
    Inventors: Heinz Leiber, Dietmar Walter, Arnold Federer
  • Patent number: 6418873
    Abstract: A bicycle wheel rim includes an annular rim body having a central axis. The annular rim body includes annular left and right side walls spaced apart from each other. Each of the side walls has a radial inner edge proximate to the central axis, a radial outer edge distal to the central axis, and a lateral outer brake pad contacting surface opposite to the other one of the side walls. The annular rim body further includes an annular base wall interconnecting the radial inner edges of the left and right side walls. The brake pad contacting surface of each of the side walls is formed with a wear-indicating projection adapted to be in frictional contact with a brake pad. The wear-indicating projection is formed as a continuous annular projection that extends along a respective one of the side walls.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: July 16, 2002
    Assignee: Alex Machine Industrial Co., Ltd.
    Inventor: Chao-Ying Chen
  • Patent number: 6415735
    Abstract: The present invention is directed to a gear wear indicator. The gear wear indicator comprises at least one indicator tooth where the indicator tooth comprises a cavity. An indicator element is located within the cavity and is visually altered when the cavity is ruptured. A viewing port is provided for viewing the indicator element in the cavity.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: July 9, 2002
    Inventor: E. Mark Rogers
  • Patent number: 6394023
    Abstract: A recyclable process kit part is provided with a visible mark. After the part undergoes a cleaning process that removes deposited material therefrom, the part can be determined to be within tolerance, based on the mark's visibility. More specifically, the recyclable process kit part is made of a material, and has a first surface that has a first elevation. A visual mark is formed in the first surface, and extends to a second elevation, wherein the distance between the first elevation and the second elevation is adapted such that the mark is visible until an amount of the material is removed from the part so as to make the part nearly out of tolerance.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: May 28, 2002
    Assignee: Applied Materials, Inc.
    Inventor: Steven C. Crocker
  • Patent number: 6386237
    Abstract: The useful life of an abrasive material transport hose (10) can be maximized if the hose is repositioned at the first signs of internal wear. This is accomplished by disposing at least two wear sensing elements (17, 21), each at a specified distance from the inwardmost surface of the inner tube (12), and each monitoring a condition indicative of wear of the hose (10) at its specified distance from the inwardmost surface of the inner tube. When the innermost wear sensing element (17) implies wear, the hose can be repositioned to extend the useful life until the outermost wear sensing element (21) indicates wear requiring replacement of the hose.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: May 14, 2002
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Ronald Marcel Chevalier, Andre Georges Cook, Thomas Goodsell Hutchins
  • Patent number: 6345699
    Abstract: A brake actuator having a switch device mounted to an actuator housing with a C-shaped molded body and a C-shaped spring member partially surrounding an actuator rod and adapted to contact a large diameter section of the actuator rod when brake wear causes the actuator rod to travel to a service limit position. In normal operation the spring member is separated from a small diameter section of the actuator rod. The switch device is mounted at an open end of the molded body and spring member and comprises first and second electrical contacts which extend and electrically contact each other as long as the brake actuator rod has not traveled to the service limit. When the push rod ahs traveled to its service limit, a large diameter portion of the push rod forces the contacts apart thus opening the electric circuit.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: February 12, 2002
    Assignee: Dana Corporation
    Inventor: Thomas Lee Runels
  • Patent number: 6314907
    Abstract: A device use indicator (16), which is designed to signal a predetermined amount of use of a device as a function of the amount of vibration of the device is provided. The indicator is adapted to be coupled or attached to a device (10). The indicator includes a first disk (18), a second disk (20), and an intermediate layer (22) separating the first disk from the second disk. The first disk retains a chemical therein. In operation, when the device to which the use indicator is attached is used, vibration of the device and the indicator triggers release of the chemical from the first disk. The chemical then travels through the intermediate layer to be received by the second disk. The chemical, when received by the second disk in excess of a predetermined amount, creates a detectable indication. The detectable indication, for example, a color or shade change produced in the second disk, signals a user that the device has been used for a predetermined amount of time as a function of the amount of its vibration.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: November 13, 2001
    Assignee: Optiva
    Inventors: Ward Edwin Harris, Lokanathan M. Iyer, Brian D. Hench
  • Publication number: 20010035122
    Abstract: A tension overload indicator includes a housing having a cavity extending along a longitudinal axis between oppositely disposed co-axial first and second apertures for journalling therethrough of a portion of a flexible load-bearing member. The housing has a third aperture having a bore axis orthogonal to the longitudinal axis. A rigid elongate member is slidably journalled in the third aperture between a recessed position wherein a visual warning signal on a distal end of the elongate member is recessed within the housing and a translated position wherein the warning signal is exposed from the housing. The elongate member extends into the cavity in the recessed position and is releasably locked in the recessed position by a shear member. The flexible load-bearing member is deflected out of co-axial alignment with the longitudinal axis by bending around the inner end of the elongate member.
    Type: Application
    Filed: April 4, 2001
    Publication date: November 1, 2001
    Inventor: Wayne Margetts
  • Patent number: 6250295
    Abstract: A tool for treatment of rock, masonry or concrete by drilling, grinding or cutting off, the tool has a plurality of cutting segments each having a plurality of bonded cutting bodies formed as diamond crystals and subjected to an abrasive wear during an operation, a tool base body which carries the cutting segments, and at least one marking provided on at least one segment and forming a wear indicator, the at least one marking being arranged so that it changes during operation of the tool with wear of the cutting segments.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: June 26, 2001
    Assignee: Scintilla AG
    Inventors: Marzell Chanton, Walter Linder, Daniel Jeiziner, Raphael Chiesa
  • Patent number: 6220199
    Abstract: A tire with worn tread indicator for providing a visual indication that a tire's tread is worn below a predetermined level. The tire with worn tread indicator includes a tire with a treaded outer surface having a plurality of alternating tread channels and tread ridges. A plurality of spaced apart elongate gel tubes are embedded in the tire and positioned adjacent the treaded outer surface. In the lumen of each gel tube is a visibly detectable colored liquid therein.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: April 24, 2001
    Inventor: Wildon Williams
  • Patent number: 6213254
    Abstract: An Air Brake Travel Rod Indicator (ABTRI) is disclosed which indicates a brake adjustment is needed by measuring the amount of movement of a brake rod between an air can and an indicator arm of the ABTRI when the air brake is applied. The ABTRI is comprised of a resilient material having a sleeve cut out so that it may be pressed onto the brake rod. An indicator arm or pointer is formed integral with the sleeve and projects perpendicular therefrom.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: April 10, 2001
    Inventor: Vernon L. Lanou, Jr.
  • Patent number: 6206158
    Abstract: A device for a clutch which is subject to wear brought about by friction, especially for motor vehicles, for signaling that a wear limit has been reached. The clutch has a pressure plate which is connected, via tangential leaf springs, with a clutch housing so as to be fixed with respect to rotation relative to it, but so as to be axially displaceable, and by way of which a clutch disk provided with friction linings can be pressed against a flywheel of an internal combustion engine. The device has two structural component parts which can be clamped against one another, one of which structural component parts is arranged so as to be movable in the radial direction. A clamping of the structural component parts can be canceled when the wear limit is reached, wherein a movable structural component part springs into another radial position and remains there.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: March 27, 2001
    Assignee: Mannesmann Sachs AG
    Inventors: Roland Müller, Marco Greubel, Erwin Ziegler, Frank Hirschmann
  • Patent number: 6167833
    Abstract: A wear indicator is provided for a rotary drilling tool of the type which comprises a bit body having a leading surface for cutting, abrading or reaming a hole in a target substrate material such as a sub-surface formation, the wear indicator comprising or including one or more discrete areas of a visually distinct material to that from which the drilling tool is mainly composed, the visually distinct material being arranged or configured at or adjacent the surface of the bit such that progressive wear of the bit and hence the or each visually distinct discrete area provides a visual indication of surface wear of the tool.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: January 2, 2001
    Assignee: Camco International Inc.
    Inventors: Douglas Bruce Caraway, Tony Martin Watts, Douglas Alan Patton, David Martin Nguyen
  • Patent number: 6119504
    Abstract: A device for measuring wear in large roller bearings that have two bearing rings (1 & 2) with space accommodating the rollers (3) between them. The device has an indicator that indicates a prescribed deflection between the rings and a probe (9) that is accommodated in an opening (10) in the outer bearing ring (2) with the end (11) of the probe able to come into contact with one of the surfaces of the inner bearing ring (1). The object is a device that will provide accurate and reliable indications of bearing wear even after years of use, that will be simple in design, and that cannot be damaged or destroyed by outside forces. The inner bearing ring accordingly has a groove (12) facing the probe, and the end of the probe extends into the groove. The surfaces of the groove are as far from the end of the probe as the maximal permissible depth of the wear on the bearing.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: September 19, 2000
    Assignee: Thyssen Krupp AG
    Inventor: Wolfgang Claus
  • Patent number: 6072389
    Abstract: The brake adjustment monitor has a pull or breakaway switch having an activation pin as part thereof which activation pin is attached to the push rod and slack adjustment arm assembly of an air brake system by a cable. The switch itself is attached to an existing bolt screw or like attachment device on the air chamber assembly of the brake. When the switch and cable are installed on a brake assembly the cable is adjusted to a length to pull the activation pin to operate the switch when the push rod has traveled a predetermined distance. This distance, as is known in the art, is an indication of brake wear or misadjustment. A number of bulb indicators with or without sound indicators may be mounted on a trailer or motorized vehicle and electrical connected to indicate to an operator the switch activation.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: June 6, 2000
    Inventor: Bill Strasburger
  • Patent number: 6019197
    Abstract: An improved air brake stroke gage including, an elastomeric-grommet around the push rod to seal the air brake housing during the "inactive" mode of the brake system, and a pivotally mounted reference marker to be shifted to selected positions to provide an easy and quick usual indication of the adjustment of the air brake system.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: February 1, 2000
    Assignee: Fleet Maintenance Technologies, Inc.
    Inventor: Daniel G. Judson
  • Patent number: 5975352
    Abstract: A dispenser 100 for dispensing a chemical product that is dissolved by diluent. The dispenser includes a package 170 having a diaphragm, or fingered collar 180 attached to its opening. The diaphragm 180 has a plurality of flexible members or flexible fingers 185. The dispenser may utilize an injection manifold 109 that is sized and configured to be positioned on a washing machine top proximate the gap between the washing machine's top and lid. Still further, the invention includes a low level chemical product indicator. The indicator includes a focused light source 98a and 98a. The focused light source is a high intensity light emitting diode having a viewing angle of less than 6.degree. and an intensity of above 10,000 mcd. The dispenser also includes an apparatus and method in which a dispensing time of a dispenser is dynamically varied in response to diluent temperature during operation of the dispenser.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: November 2, 1999
    Assignee: Ecolab Inc.
    Inventors: John Ross Spriggs, Loleta T. Tolliver-Rogers, Daniel K. Boche, Ronald Bruce Howes, Douglas Sherwin Hoerning
  • Patent number: 5947053
    Abstract: The present invention relates to wear-through detection in multilayered parts. This invention specifically encompasses, in one aspect, wear-through detection in semiconductor vacuum processing systems in which a wear indicator that will release a detectable constituent upon exposure to processing conditions is used inside the semiconductor vacuum processing tool. This invention permits real time detection of wear during operation of semiconductor vacuum processing equipment.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: September 7, 1999
    Assignee: International Business Machines Corporation
    Inventors: Jay Burnham, Harold G. Linde, Nicholas N. Mone, Jr., Ronald A. Warren
  • Patent number: 5939978
    Abstract: A brake lining wear indicator utilizes a temperature sensor assembly embedded in a brake lining of a drum brake assembly. The temperature sensor assembly includes two temperature sensors with a first temperature sensor located at a first distance X from the wear surface of the brake lining and a second temperature sensor located at a second distance X+d from the wear surface. A timing device measures the time period for the first temperature sensor to reach a first predetermined temperature and measures the time period for the second temperature sensor to reach a second predetermined temperature. The remaining useful thickness of the brake lining is determined based on the ratio of the respective time periods. Thus, the indicator provides a time-temperature based determination of when the brake linings should be replaced.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: August 17, 1999
    Assignee: Meritor Heavy Vehicle Systems, LLC
    Inventor: Christos Kyrtsos
  • Patent number: 5934415
    Abstract: A brake actuator having a switch device mounted to an actuator housing with a spring member partially surrounding an actuator rod and adapted to contact a large diameter section of the actuator rod when brake wear causes the actuator rod to travel to a service limit position. In normal operation the spring member is separated from a small diameter section of the actuator rod. The switch device is mounted to a first end of the spring member having first and second electrical contacts which extend and electrically contact a conduction plate attached to a second end of the spring member as long as the brake actuator rod has not traveled to the service limit.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: August 10, 1999
    Assignee: Dana Corporation
    Inventors: David M. Preston, G. Clark Fortune, James R. Clark, John-Cyril P. Hanisko
  • Patent number: 5913385
    Abstract: An indicator for determining brake stroke condition on a vehicle braking system comprising: a bracket having an elongated member having at one end an attachment portion located generally at a right angle radius to the elongated member, the bracket mounted to a chamber mounting bracket which supports a brake chamber, the bracket chamber having a clevis assembly including a clevis pin which connects the clevis assembly to a brake arm; a continuous slot extending along the length of the elongated member, the elongated member running parallel to the clevis assembly; and a second bracket detachably mounted to the continuous slot along the elongated member the second bracket having a base and two extending members from the base; the position of the extending members being a predetermined distance from the clevis pin thereby indicative of the brake stroke condition on the vehicle braking system.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: June 22, 1999
    Assignee: Spectra Products Inc.
    Inventor: Gerry Thibodeau
  • Patent number: 5909171
    Abstract: A brake lining wear indicator utilizes a temperature sensor assembly embedded in a brake lining of a drum brake assembly. The temperature sensor assembly includes two temperature sensors with a first temperature sensor located at a first distance X from the wear surface of the brake lining and a second temperature sensor located at a second distance X+d from the wear surface. A timing device measures the time period for the first temperature sensor to reach a first predetermined temperature and measures the time period for the second temperature sensor to reach a second predetermined temperature. The remaining useful thickness of the brake lining is determined based on the ratio of the respective time periods. Thus, the indicator provides a time-temperature based determination of when the brake linings should be replaced.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: June 1, 1999
    Assignee: Meritor Heavy Vehicle Systems, L L C
    Inventor: Christos T. Kyrtsos
  • Patent number: 5901913
    Abstract: In a fishing reel, a rotary body (a drive gear) has an accommodating section at the center which includes a round hole and a recess. The accommodating section accommodates the thick annular liner of a brake member in a brake device, and the detection brake body. The liner is made of felt, cork, leather or fiber-reinforced synthetic resin. The detection brake body is in the form of a disk, and is mounted on a shaft, which is a handle shaft. The bottom surface of the recess of the rotary body is formed into the uneven portion. The detection brake body has a through-hole, to which one end portion of the detecting piece is secured, for instance, by spot welding, and the other end portion of the detecting piece is extended so as to be engageable with the uneven portion. When the liner is worn out to a predetermined value, the detecting piece is contacted and engaged with the uneven portion to generate a sound.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: May 11, 1999
    Assignee: Daiwa Seiko, Inc.
    Inventors: Nobuyuki Yamaguchi, Takeo Miyazaki, Hiroshi Toma
  • Patent number: 5855110
    Abstract: For an aerostatic bearing (6) of an open-end spinning rotor, in which the bearing material consists of a wearable material, a wear indicator (9) is provided on the bearing plate (601) of the axial bearing (6) so that the state of wear of the axial bearing (6) can be checked by simple optical inspection. The wear indicator (9) can be integrated into the running surface (610) and be made e.g. in the form of a blind bore (91), so that the presence of the bore indicates that the wear lies still within the admissible limits.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: January 5, 1999
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Erich Bock, Manfred Knabel, Edmund Schuller
  • Patent number: 5796349
    Abstract: The axial bearing includes a first ring and a second ring. During operation of the axial bearing, the first ring rotates with respect to the second ring. Over time the foregoing rotation produces wear of the first ring; consequently, exposes layers of the first ring to the second ring. The different layers of the first ring produce variations in the coefficient of friction within the axial bearing. If the axial bearing is associated with a drive motor, then the variations in the coefficient of friction change the load on the drive motor. The change in load upon the drive motor may be monitored to indicate axial bearing wear or the need for axial bearing replacement.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: August 18, 1998
    Assignee: Ansimag Inc.
    Inventor: Manfred P. Klein
  • Patent number: 5785323
    Abstract: A seal for preventing leakage of fluid from between a first member and a second member, the second member is capable of moving toward and away from the first member, the seal is adapted for engaged contact with the first member and the second member so as to prevent leakage of fluid between the first member and the seal and between the second member and the seal, the seal being softer than the second member such that friction between the seal and the second member wears the seal faster than the second member, the seal being adapted to retain a tight seal against the second member as long as the seal has not worn beyond a specified depth; and a conductor for placement about the second member, the conductor being attached to the seal at the specified depth so as to contact the second member when the seal has worn to the specified depth, such that the existence of electrical continuity between the conductor and the second member indicates that the seal requires replacement, the conductor is positionally associat
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: July 28, 1998
    Inventor: Ralph Heinzen
  • Patent number: 5759492
    Abstract: An end of life monitor apparatus for a filter that removes an undesirable gas including: (a) an elastic material, which degrades in the presence of the undesirable gas; (b) a support member coupled to the elastic material; and (c) an indicator component movable to a filter end life position, coupled to the elastic material, whereby the elastic material is stretched between the support member and the indicator component, wherein the indicator component is biased to move to the filter end life position but is restrained by the elastic material from moving to the filter end life position, wherein degradation of the elastic material allows the indicator component to move to the filter end life position.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: June 2, 1998
    Assignee: Xerox Corporation
    Inventor: Louis Reale
  • Patent number: 5708317
    Abstract: An electric motor including a housing defining an aperture therethrough is disclosed. The motor also includes an armature mounted in the housing and a brush mounted in the housing and slidably connected to the armature. The housing substantially encloses the armature and the brush. The aperture is positioned with respect to the brush so that the brush may be visible through the aperture and so that the remaining usable life of the brush may be visually determined while the electric motor is assembled.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: January 13, 1998
    Assignee: Xerox Corporation
    Inventors: Robert P. Siegel, Walter Bujalski
  • Patent number: 5707680
    Abstract: There is disclosed a method for the time-delayed defacement of all or part of a printed work, such as a time-dependent coupon. Such method comprises applying opaque print onto a substrate and applying an opacity-labile composition of lesser nascent opacity than the visible print onto the substrate in such a manner that a change in the opacity of the opacity-labile composition causes a time-delayed defacement of the printed substrate.
    Type: Grant
    Filed: January 2, 1996
    Date of Patent: January 13, 1998
    Inventor: Steven Jerome Moore
  • Patent number: 5699880
    Abstract: A brake adjustment indicator for a braking system including a pressure chamber, a pushrod extending longitudinally outwards from the pressure chamber and moveable when correctly adjusted between first and second positions, a brake arm and a pivot for pivotally mounting the pushrod to the brake arm. The brake adjustment indicator comprises an indicator adapted to be mounted for longitudinal movement with the pushrod, a support having a first portion and a second portion, the first portion adapted to be mounted to the vehicle, the support configured to position the second portion opposite to the indicator and first and second reference pointers fixedly positionable on the second portion for marking the first and second positions. A spacer is provided for positioning the first reference pointer in a preselected position relative to the second reference pointer. The first and second reference pointers are mounted for simultaneous movement on the second portion.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: December 23, 1997
    Assignee: Mr. Safety Check Systems Inc
    Inventor: Des Hockley
  • Patent number: 5690146
    Abstract: The present invention indicates excessive wear on the outer cover of a hose in order to help avoid unexpected ruptures and spills. The invention is a hose with an outer cover. The outer cover has two layers made of rubber or plastic. The outer cover has an inner layer of one color (e.g. yellow) and an outer layer of another color (e.g. black). When the outer cover wears down to expose color of the inner layer, the end user is made aware that outer cover wear is approaching the reinforcement layer and that the hose should be replaced.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: November 25, 1997
    Assignee: Aeroquip Corporation
    Inventor: David A. Stammen
  • Patent number: 5689231
    Abstract: A brake monitor for monitoring air brake adjustment as measured by push rod travel distance is comprised of a bracket straddling the push rod clevis of the brake system. The clevis pin connecting the push rod clevis to the slack adjuster and secured to the slack adjuster by a socket set screw, extends beyond the boundary of the push rod clevis and is received within a transducer attached to the bracket. Clevis pin rotation causes transducer output, corresponding to specific angular rotation of the clevis pin, which output is received by a display device of any appropriate type and communicated to the user. The system can be equipped with a black box-type memory for use by accident investigative authorities.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: November 18, 1997
    Inventor: Ronald E. Olson
  • Patent number: 5688176
    Abstract: A torque limiting clutch for use with a hollow shafted motor has an input hub in operative connection with the hollow input shaft. A back plate is disposed at a fixed distance from the input hub. A plurality of interleaved friction disks and separator plates are interposed between the input hub and the back plate. A pressure plate is interposed between the input hub and the interleaved friction disks and separator plates. Spring cup assemblies are operatively interposed between the input hub and the pressure plate, urging the pressure plate toward the back plate and urging the friction disks and separator plates into frictional engagement. An output hub is connected to the friction disks and supported by a bearing from the back plate. An output shaft is connected to the output hub and extends through at least part of the hollow input shaft.
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: November 18, 1997
    Assignee: Power Transmission Technology, Inc.
    Inventors: David C. Heidenreich, Keith A. Nichols
  • Patent number: 5673028
    Abstract: An electronic component failure indicator for clearly visably indicating on the surface of an electronic component to be tested a self sustaining indication of the functional operational status of the component. It is used for easily locating and identifying the exact used electronic component that has failed while it is still in a circuit and also later after it is removed from a circuit without the need of test equipment and electrical power. It includes an electronic testing circuit which continually monitors one or more parameters of the electronic component other than temperature. Upon a determination that one or more parameters has deviated from a normal condition, the test circuit generates an appropriate signal. This in turn causes a visable change in an indicator that is visable on the surface of the electronic component being monitored. In some embodiments, this may constitute a color change of the indicator, and in other embodiments, it may cause a bending or movement of the indicator.
    Type: Grant
    Filed: January 7, 1993
    Date of Patent: September 30, 1997
    Inventor: Henry A. Levy
  • Patent number: 5664478
    Abstract: A spring break actuator (10) with a cast aluminum adapter (74) partially defining tandem spring brake and service brake portions has several corrosion fuses on the adapter. Each corrosion fuse is defined by a recessed or thinned area which does not compromise the structural integrity of the adapter.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: September 9, 1997
    Assignee: NAI Anchorlok, Inc.
    Inventor: William C. Pierce
  • Patent number: 5655475
    Abstract: According to the present grinding method, a plurality of optical markers are formed by photolithography such that the markers are embedded in a chiplet having a magnetic head. Markers are preferably in the shape of a bar having predetermined height, width and length and are spaced from each other by a predetermined distance where one end of the bars are sequentially offset from each other by a predetermined amount. During coarse grinding of the magnetic head as the magnetic head surface material is ground away, the end-face of the bars, one at a time, become visible. The closer the grinding surface approaches the desired inductive throat or MR element height, more end-faces become visible. Coarse grinding continues until a predetermined number of end-faces become visible at which point the grinding process is terminated and the magnetic head is ready for the final lapping process.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: August 12, 1997
    Assignee: International Business Machines Corporation
    Inventors: Douglas Warren Crandell, Edward Hin Pong Lee, David John Seagle
  • Patent number: 5649469
    Abstract: An air-operated combination diaphragm spring brake has a service chamber in tandem with a spring chamber. The service chamber being separated into an upper and lower section by a first elastomeric diaphragm. The spring chamber is separated into upper and lower sections by a second elastomeric diaphragm. A lever type stroke indicator is positioned within either or both the lower sections of the service chamber and the spring chamber.The stroke indicator in the service chamber pivots about a pin when contacted by a plate associated with the service push rod when the brakes are applied, resulting in a portion of the stroke indicator to extend beyond the periphery of the service chamber housing and provide a visual indication of the need to inspect the brake system.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: July 22, 1997
    Assignee: NAI Anchorlok, Inc.
    Inventor: William C. Pierce
  • Patent number: 5608376
    Abstract: A brake pad wear probe contains a plurality of terminals turned or bent into a U-shape with their tip positions offset from each other. The terminals are cut in stages according to the wear development degree of the brake pad. The terminals define energization routes to electro-magnetic coils at relays, and the broken line state of the terminal can be detected at the respective relay by detection of a break in its corresponding energization route. As a result, electro-magnetic switches work in response to the wear development degree, turning on predetermined indicator lamps of a display to inform a driver of the brake wear condition.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: March 4, 1997
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Katsuya Ito, Hitoshi Takanashi
  • Patent number: 5579717
    Abstract: According to the present grinding method, a plurality of optical markers are formed by photolithography such that the markers are embedded in a chiplet having a magnetic head. Markers are preferably in the shape of a bar having predetermined height, width and length and are spaced from each other by a predetermined distance where one end of the bars are sequentially offset from each other by a predetermined amount. During coarse grinding of the magnetic head as the magnetic head surface material is ground away, the end-face of the bars, one at a time, become visible. The closer the grinding surface approaches the desired inductive throat or MR element height, more end-faces become visible. Coarse grinding continues until a predetermined number of end-faces become visible at which point the grinding process is terminated and the magnetic head is ready for the final lapping process.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: December 3, 1996
    Assignee: International Business Machines Corporation
    Inventors: Douglas W. Crandell, Edward H. P. Lee, David J. Seagle
  • Patent number: 5540448
    Abstract: A seal prevents leakage of fluid between the seal and a moving surface. The seal includes a seal body and a conductor. The seal body can undergo wear to a specified depth before the seal requires replacement. The conductor is placed about the moving surface such that wear of the seal body to a specified depth brings the conductor into contact with the moving surface. The conductor may be embedded in the seal body or otherwise attached to position the conductor about the moving surface. Wear of the seal body to a specified depth can be checked by checking electrical continuity of the conductor. The existence of electrical continuity between the conductor and the moving surface may indicate that the seal requires replacement. Alternatively, the conductor may be positioned such that the conductor has worn entirely through when the seal body has worn to a specified depth, with a loss of electrical continuity through the conductor indicating that the seal requires replacement.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: July 30, 1996
    Inventor: Ralph Heinzen
  • Patent number: 5538161
    Abstract: A container for dispensing a solid deodorant and/or antiperspirant. The container comprises a housing, a platform, a dispensing member, and a level indicator. The housing has an open top end for dispensing the deodorant and/or antiperspirant contained therein, a bottom end, and a side wall. The platform is positioned within the housing for supporting the deodorant and/or antiperspirant. The dispensing member is mounted in the housing and attached to the platform for moving the platform from the bottom end of the container towards the open top end of the container for dispensing the deodorant and/or antiperspirant. The level indicator is provided on the platform for indicating an amount of deodorant and/or antiperspirant remaining in the container, the amount of deodorant and/or antiperspirant remaining being indicated by the position of the platform as it is moved within the housing.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: July 23, 1996
    Inventors: Steven M. Koehler, Lawrence C. Chasin
  • Patent number: 5531308
    Abstract: A friction device includes an adjustment mechanism for adjusting the device in response to wear on a friction surface within the device. The adjustment mechanism includes a first cam ring and a second cam ring adjacent the first cam ring. In one embodiment, the first cam ring is adapted for axial, but non-rotational movement with respect to a cover of the friction device, the cover being secured to a driving member for transmitting torque. The second cam ring is adapted for rotational movement with respect to the cover and the first cam ring. The first cam ring has a plurality of annular ramped surfaces on an axial face of the first cam ring. The second cam ring has a plurality of annular ramped surfaces on an axial face opposing the axial face of the first cam ring.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 2, 1996
    Assignee: Dana Corporation
    Inventors: Daniel V. Gochenour, Barry T. Adams, Martin E. Kummer, Christopher M. Davis, Steven D. Lepard, Michael L. Bassett, Kevin F. Schlosser
  • Patent number: 5492203
    Abstract: A visual brake cylinder piston travel indicator for a railroad car having a brake cylinder device located remotely from a convenient viewing area. An indicator rod is suitably sized and configured to extend from the remote brake cylinder device to the viewing area where the brake cylinder piston travel may be determined by the relationship of the indicator rod end with respect to a reference point. At the brake cylinder device, the indicator rod is connected to the piston hollow rod by a bearing assembly that includes the hollow rod collar. The bearing assembly provides for relative rotation between the indicator rod and hollow rod, while concurrently transmitting axial movement of the piston to the indicator rod, such relative rotation being necessitated by the fact that the piston and hollow rod typically rotate during reciprocal movement between a brake application and brake release position, due to torsional forces imparted by the piston return spring.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: February 20, 1996
    Assignee: Westinghouse Air Brake Company
    Inventor: Mark S. Krampitz