Strap Patents (Class 188/77R)
  • Patent number: 6112863
    Abstract: A band brake for selectively holding a rotating element motionless includes means for evenly distributed application of force to the band brake. In some embodiments of the invention ball or roller bearings are used to apply evenly distributed forces to the band brake. In other embodiments of the invention, the band brake has variable thickness and the thicker portions are wedged between a rotating member and some outer member to hold the rotating member motionless. In at least one embodiment, selectively movable pairs of mirror-image ball or roller bearings are used to apply braking force directly to a rotating element.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: September 5, 2000
    Inventor: Gregory J. Colletti
  • Patent number: 6089358
    Abstract: A tube-pressed brake band is arranged between inner and outer rings having a common center to stop rotation of one of the inner and outer rings as a counterpart by inflating a ring-shaped tube, which is inflatable in a radial direction of the brake band, into engagement with the counterpart. The tube-pressed brake band has a ring-shaped strap arranged between the counterpart and the tube and relative to an angular direction, is fixed at an end thereof on the other one of the inner and outer rings.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: July 18, 2000
    Assignee: NSK-Warner K.K.
    Inventor: Satoshi Dairokuno
  • Patent number: 6044937
    Abstract: A brake band device (1) for engagement and dis-engagement (braking and releasing) a cylindrical clutch drum of an automatic transmission includes a strap (12) formed of a belt-like member shaped into a substantially circular form, with a gap defined between ends of the strap (12). A lining (13) is fixed to the inner peripheral surface of the strap (12) and is engageable with the outer peripheral surface of the clutch drum. A pair of arc-shaped brackets (14) are fixed to each of ends of the strap (12), respectively. The strap is formed with a plurality of slightly deformed portions that extend slightly radially inwardly from other portions of the strap (12) thereby providing the strap (12) with a biasing force that allows for improved dis-engagement with the clutch drum.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: April 4, 2000
    Assignee: Exedy Corporation
    Inventor: Toshiyuki Yamada
  • Patent number: 5984054
    Abstract: In a motor chain saw comprising a motor housing (10), a removable clutch cover (16) and an emergency chain brake (18-20) attached to the clutch cover, a hand guard (11) is provided which is pivotably attached to the motor housing by at least one lever (12). The lever (12) is provided with a first clutch part (14) which is adapted to be releasably engaged with a second, complementary clutch part (15) connected to the chain brake.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: November 16, 1999
    Assignee: Aktiebolaget Electrolux
    Inventor: Par Martinsson
  • Patent number: 5975253
    Abstract: A lining for a brake band wherein brackets of the same shape or different shapes are connected respectively to opposite ends of a curved thin strap having an adhesive thereon, and a thin wet lining is bonded to an inner side of the curved strap, characterized in that cavities containing lubricating oil are formed in the lining.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: November 2, 1999
    Assignee: NSK-Warner Kabushiki Kaisha
    Inventors: Shigeki Umezawa, Toshiaki Wakisaka
  • Patent number: 5921355
    Abstract: The Frustrator--Model C is a small and simple electric powered assembly of common-use components hidden within the automobile steering column enclosure. It inhibits car thefts by anyone not having the ignition key because normal use of the ignition key controls the flow of electric power which either locks the steering rod through braking action, making the automobile impossible to steer when the ignition key is turned to the `off` position or releases the braking action for normal steering action when the ignition key is turned to the `on` position.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: July 13, 1999
    Inventor: Lloyd C. Mostrom
  • Patent number: 5884744
    Abstract: A brake for tandem wheels comprising a block that is shaped to conform to a portion of the circumferential surface of each of the wheels. The block is positioned to be in continuous frictional engagement with the circumferential surface of each of the wheels so that a constant force is applied to each of the wheels. When one of the wheels is stopped due to an external force, the mechanical forces that are built through the continuous frictional engagement result in the block exerting a braking force against the circumferential surface of the other wheel.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: March 23, 1999
    Inventor: Jan S. Slodkowski
  • Patent number: 5752588
    Abstract: A hydraulic servo for friction brakes of an automatic transmission comprises a cylinder (2) with a main piston (3) arranged therein, a smaller cylinder (8) to receive a smaller compensation piston (9), the smaller cylinder communicating with the pressure chamber (5) of the main piston (3) through an orifice (18) controlled by a ball valve (20). A stepped bore (22) connects the pressure chamber (5) to the compensation chamber (17). A stepped piston (23), located in the bore, forms a discharge control valve (24), which controls the discharge of pressure medium from the compensation chamber (17).
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: May 19, 1998
    Assignee: Ford Global Technologies, Inc.
    Inventors: Eric Reichert, Friedel Lauscher
  • Patent number: 5735369
    Abstract: A band brake drum supporting device for an automatic transmission having a band drum to be retained in a case by fastening a band brake which is joined to a rotary element of the automatic transmission and arranged in the case. The drum includes a band engaging portion and a cylindrical drum supporting portion extending radially inward from the band engaging portion while being offset axially with respect to the band engaging portion. The outer circumference of the drum supporting portion is supported through two axially juxtaposed bearings on a stationary support portion which extends radially outward of the drum supporting portion from the case. The stationary support portion includes a cylindrical boss portion disposed coaxially with the drum supporting portion and engaging at its inner circumference with the two bearings and a planar flange portion extending radially outward from the end portion of the boss portion which is located closer to the band brake.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: April 7, 1998
    Assignee: Aisin Aw Co., Ltd.
    Inventors: Kazumasa Tsukamoto, Masahiro Hayabuchi, Masaaki Nishida, Akitoshi Kato, Satoru Kasuya, Nobutada Sugiura, Tatsuya Iida
  • Patent number: 5709032
    Abstract: To provide a chain stop device for an electromotive chain saw that can quickly stop the rotation of a cutting chain when a trigger member is released. The electromotive chain saw is provided with a chain stop mechanism operated with a solenoid. When the trigger lever is released, the solenoid is energized, such that a brake force is applied by a chain stop mechanism. The chain stop mechanism is composed of a brake shoe for engaging with or disengaging from the inner periphery of a brake drum, a Y-shaped resilient member for supporting the brake shoe, a swingable lever for slidably guiding the resilient member, and a clutch disconnected when depressed by two arms of the resilient member.
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: January 20, 1998
    Assignee: Makita Corporation
    Inventors: Makoto Mizutani, Hideki Okubo, Masaki Kondo
  • Patent number: 5671912
    Abstract: At predetermined low speeds, a safety brake is applied directly to the hoisting drum at a setting sufficiently high to stop the load from falling should drive line failure occur. The load can be lowered or raised by applying sufficient torque to the drum to overcome the braking force and thus lower or raise the load. If drive train failure occurs, the brake will instantaneously stop the load without further uncontrolled movement.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: September 30, 1997
    Assignee: Ederer Corporation
    Inventors: Fred E. Langford, Roger A. Johnson
  • Patent number: 5636444
    Abstract: A cutter has a drive motor and a drive shaft. A rotating cutting tool is connected to the drive shaft. A centrifugal clutch is connected between the drive motor and the drive shaft. A frictional brake having a brake drum and a brake element positioned on the brake drum to achieve a braking effect is provided. The frictional brake is connected to the drive shaft. A servo device, which includes a folding bellows, is connected to the frictional brake for releasing the brake element from the brake drum to cancel the braking effect. A switching device for activating the servo device is provided.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: June 10, 1997
    Assignee: Andreas Stihl
    Inventor: Hans Nickel
  • Patent number: 5634536
    Abstract: The present invention provides a brake that allows an object to rotate continually through its full range of movement, but allows the object to be reliably secured at any position within this range. The object is carried by a brake that includes a deformable cylindrical collar and a lever. Normally, a spring exerts force against the lever, which in turn exerts pressure on the collar, causing the interior diameter of the collar to become smaller. The collar then grasps the rod and prevents the rotation of the brake relative to the rod. A pneumatically controlled piston counters the force of the spring to allow the brake to rotate freely.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: June 3, 1997
    Assignee: A-Dec, Inc.
    Inventor: Paul D. Sturges
  • Patent number: 5609229
    Abstract: An actuator for a brake band wherein a unique cam and compression yoke arrangement permits location of the cam actuator along an axis parallel to the winch axis thereby permitting its location within the protective zone of the winch and the elimination of exposed spring operated brake actuating arrangements.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: March 11, 1997
    Assignee: Ingersoll-Rand Company
    Inventor: Leslie J. Sell
  • Patent number: 5544565
    Abstract: A servo for operating a brake band in an automatic transmission includes a transmission casing defining a cylinder, a servo piston supported for displacement within the cylinder, a piston stem defining a locking shoulder, a compression spring fitted over the piston stem, and a spring retainer fitted over the piston stem of the spring defining a shoulder resiliently engaging the shoulder formed on the piston stem.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: August 13, 1996
    Assignee: Ford Motor Company
    Inventor: Joseph S. Van Selous
  • Patent number: 5511639
    Abstract: A transmission control for a multi-speed planetary gear arrangement is responsive to thrust forces generated by the band at the band drum support controlled by an on-coming friction device during a ratio interchange to generate a control signal. The control signal is used to begin the disengagement process of the off-going friction device.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: April 30, 1996
    Assignee: General Motors Corporation
    Inventor: James F. Sherman
  • Patent number: 5474158
    Abstract: A brake system comprising a brake drum having an outer peripheral surface, and a brake band including a flexible band-shaped metal member having fixed and actuation brackets mounted near the opposite ends thereof. The band-shaped metal member is wound around the outer peripheral surface of the brake drum with the fixed bracket being fixed to an anchorage pin. The brake band also includes a lining member fixed on the band-shaped metal member. An actuator is coupled to the actuation bracket for acting a force on the band-shaped metal member to bring the lining member into surface contact with the outer peripheral surface of the brake drum at a speed. Oil grooves are formed in the lining member for discharging oil from a space between the lining member and the brake drum to control the speed at which the lining member comes into surface contact with the brake drum. The oil grooves have an oil discharging capacity increasing as going from the fixed bracket toward the actuation bracket.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: December 12, 1995
    Assignee: Jatco Corporation
    Inventors: Toshihide Fukasawa, Yasunari Mochizuki, Mitsugi Tazawa
  • Patent number: 5467849
    Abstract: A brake band suitable for use in a vehicle transmission is described. The brake band is composed of a band portion, such as a metal strap, and a brake lining bonded at an outer peripheral surface thereof on an inner peripheral surface of the band portion and has an apply side end and an anchor side end located opposite to each other relative to a circumferential length of the brake band. The brake lining is provided with oil-dependent, friction surface cooling grooves having bottom walls, respectively. Each cooling groove is provided with a discharging aperture extending through the bottom wall of the corresponding cooling groove to the outer peripheral surface of the brake lining. Adjacent to the anchor side end of the brake band, the brake lining is also provided with an oil film formation promoter, for example, in the form of one or more recesses not extending to the outer peripheral surface of the brake lining.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: November 21, 1995
    Assignee: NSK-Warner K.K.
    Inventors: Hirofumi Nakagomi, Yoshihisa Harada, Shigeki Umezawa
  • Patent number: 5462138
    Abstract: A brake band suitable for use in an automatic transmission is described. The brake band has a brake lining with a surface subjected beforehand to working on an apply side thereof and having a percent contact area in a range of 10-40%, preferably 25-40% on the apply side thereof at the time of commencement of use.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: October 31, 1995
    Assignee: NSK-Warner K.K.
    Inventors: Toshiaki Wakisaka, Hirofumi Nakagomi
  • Patent number: 5445246
    Abstract: A single wrap brake band mechanism has a hydraulic piston apply structure and an anchor support structure which permit one end of the band to be the apply end and the other end of the band to be the anchor end and vice versa.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: August 29, 1995
    Assignee: General Motors Corporation
    Inventors: Raymond J. Haka, Michael C. Sefcik
  • Patent number: 5390943
    Abstract: A hand brake apparatus for installation on handtrucks of the type which have a load bearing platform and vertical load supporting frame with at least two fixed parallel wheels. An embodiment of the invention includes a single brake actuating lever which operates the two brake mechanisms simultaneously. The brake mechanisms include a band type brake shoe which acts upon a cylindrical brake drum attached to the hub of each wheel. The brake mechanisms are operated by force applied to one compression cable which extends from the brake actuating handle to a brake actuating lever.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: February 21, 1995
    Inventor: Hal T. Hedrick
  • Patent number: 5388672
    Abstract: A device (10) allows forward (clockwise) rotation of a shaft (12) but prevents reverse rotation unless disengaged. A loop (20) is attached at one end to a slide show (16), passes round a drum (14) on the shaft (12), around a first pin (24) and a second pin (26), to an arm (28). The arm (28) can move clockwise to slacken the loop (20) to disengage the device (10) and allow rotation of the shaft (12) in either sense. A mechanism for controlling the arm (12) and for self-tightening the loop (20) is described.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: February 14, 1995
    Inventor: Brian Hartley
  • Patent number: 5381876
    Abstract: A transmission brake band (10) for use in automatic transmissions includes strap member (12) with an apply bracket (18) located at one end and a reaction bracket (20) located at the opposed end. The reaction bracket (20) is formed from the strap material as an up-raised dome (36) surrounding the reaction opening (32). The surface of the dome (36) immediately surrounding the reaction opening (32) is substantially planar and perpendicular to a longitudinal axis defined by the reaction opening (32).
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: January 17, 1995
    Assignee: Borg-Warner Automotive Transmission & Engine Components Corporation
    Inventors: Anthony J. Grzesiak, Robert J. Fenoglio, Douglas J. Slager
  • Patent number: 5358062
    Abstract: The invention directed to a portable handheld drilling apparatus for receiving and driving a drill which can encounter a drilling resistance during a drilling operation thereby causing the drilling apparatus to undergo an unwanted rotational movement.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: October 25, 1994
    Assignee: Andreas Stihl
    Inventors: Klaus-Martin Uhl, Hans Nickel, Helmut Zimmermann, Rudolf Krebs, Harald Schliemann
  • Patent number: 5351974
    Abstract: A braking assembly and method are disclosed for use with in-line skates, the assembly including a brake pad or pads movably mounted to the skate and positioned adjacent to a selected wheel or wheels of the skate for selectively contacting a structure connected with the hub of the selected wheel or wheels. An actuator is operatively associated with the brake pad for selectively causing the pad to contact the structure.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: October 4, 1994
    Inventor: Donald E. Cech
  • Patent number: 5328008
    Abstract: A clutch drum in an automatic transmission houses therein a clutch mechanism through which the clutch drum is driven. The clutch drum is rotatably mounted on a fixed shaft forming part of a transmission housing and comprised of a drum main body having a cylindrical drum section which is spaced from and coaxial with the fixed shaft. The drum main body is formed of aluminum alloy. A cylindrical friction material is fixed on the outer peripheral surface of the cylindrical drum section and frictionally contactable with a brake band wrapped around the drum main body. The brake is applied to the clutch drum upon tightening the brake band.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: July 12, 1994
    Assignee: Jatco Corporation
    Inventor: Kazuhito Sano
  • Patent number: 5314044
    Abstract: A brake band retainer mechanism for an automatic washer is provided which ensures that the brake band will be held away from the brake drum when the brake is in the relaxed position, yet will be held close to the drum for ready engagement. A support frame for the brake assembly has four legs, one of the legs pivotally carrying a bracket to which the band is attached, two opposite legs have a flange thereon providing radial and vertical support for the band in its relaxed position, and a fourth, intermediate leg carrying a resilient member which presses against an outer surface of the band to bias the band against the support flange surfaces when the band is relaxed. The resilient member is held on the fourth leg without additional fasteners.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: May 24, 1994
    Assignee: Whirlpool Corporation
    Inventor: Brenner M. Sharp
  • Patent number: 5267925
    Abstract: An exercise machine utilizes a mechanical brake to provide the principal resistance. A dynamoelectric machine has its rotor connected to the flywheel of the exercise machine and its stator rotatably mounted to the apparatus frame and connected to the actuation input of the mechanical brake. The torque applied between the rotor and stator of the dynamoelectric machine tends to turn the stator and thus actuates the mechanical brake. A control system is arranged to control the current flow through the dynamoelectric machine and thereby control actuation of the brake. This allows a small dynamoelectric machine to effectively control a very large resistance. The dynamoelectric machine may also be used as a motor to drive the apparatus. Thus, the control system can actuate the dynamoelectric machine either to apply drag or to drive the apparatus thereby provided through constant speed operation.
    Type: Grant
    Filed: December 3, 1991
    Date of Patent: December 7, 1993
    Assignee: Boyd Control Systems, Inc.
    Inventor: Robert L. Boyd
  • Patent number: 5263557
    Abstract: An improved transmission brake band (10) and a method of forming the same s an improved reaction bracket (20) formed as an upraised dome (36) surrounding a reaction opening (32). An insert member (42), having a volcano-type body (44) integrally formed with a peripheral flange (46) is engaged with the dome (36) and opening (32) so that the body (44) is positioned in the opening (32) and the flange (46) is received by the dome (36).
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: November 23, 1993
    Assignee: Borg-Warner Automotive Transmission & Engine Components Corporation
    Inventor: Anthony J. Grzesiak
  • Patent number: 5235899
    Abstract: This invention is directed to a new and novel envelope for housing a servo mechanism adapted to control a brake assembly used in conjunction with a vehicular transmission. The envelope is adapted to be demountably received within a receptacle provided in the transmission case. A pilot bore penetrates the transmission case and is located axially of the receptacle. The envelope incorporates a base portion, a cap portion and a coupler portion. A servo-apply pin extends outwardly through the coupler portion of the envelope to be reciprocatingly received within the pilot bore. A piston chamber is provided interiorly of the base and cap portions. An actuating piston is operatively received in the piston chamber, and means are included to effect communication of hydraulic pressure from a conduit within the transmission case, through the coupler portion of the envelope and the servo-apply pin into the piston chamber. Locking means are also provided selectively to secure the envelope to the transmission case.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: August 17, 1993
    Assignee: General Motors Corporation
    Inventor: Kenneth C. Hauser
  • Patent number: 5199317
    Abstract: A forward and reverse power shift transmission (10) with an enclosed gear se (38) and a torque converter housing (44) is adapted to be connected to an engine bell housing (12). An input shaft (46), a lay shaft (146) an output shaft 36 and a pump driveshaft (280) are rotatably journaled in the gear case. A clutch cylinder and gear (78) secured to the input shaft is in mesh with a clutch cylinder and gear (178) secured to the lay shaft 146. A clutch gear (100) rotatably mounted on the input shaft (46) and a clutch gear (200) rotatably mounted on the lay shaft (146) are both in mesh with an output gear 240 on the output shaft 36 and in the front portion of the gear case (38). A pump drive gear (248) is journaled on the input shaft (46) and is adapted to be driven by the torque converter housing (262). The pump drive gear (248) is in mesh with a driven pump gear (290) on the pump drive shaft. The pump drive shaft (280) drives a lubrication pump (291) and is also a power take off.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: April 6, 1993
    Assignee: Borg-Werner Automotive Transmission & Engine Components Corporation
    Inventors: Keith O. Moore, Robert Wessel, Bruce M. Roberts
  • Patent number: 5188570
    Abstract: An automatic transmission has a low clutch and a band brake. The band brake is actuated by a hydraulic servo device. In order to establish well timed operations of the low clutch and the band brake upon shifting from third gear to fourth gear, both the release of the low clutch and engagement of the band brake are effected by discharging a hydraulic pressure through a common oil passage from the low clutch and one of the oil chambers of the servo device.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: February 23, 1993
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Tatsuo Wakahara
  • Patent number: 5159996
    Abstract: A safety brake which can be used in conjunction with a conventional drum brake having internal brake shoes to increase the braking force provided by the drum brake. The safety brake of the invention includes an external brake shoe which extends around the outside of the brake drum and contacts the exterior surface of the brake drum. The safety brake of the invention operates on the exterior of the brake drum at the same time the internal brake shoes operate on the interior of the brake drum.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: November 3, 1992
    Inventor: Reynold J. LeBlanc
  • Patent number: 5135082
    Abstract: A brake band for use in a transmission for a vehicle for example, has a greater oil discharge (removing) area in the portion of a lining which is near the apply side end of the brake band than in the portion of the lining which is on the anchor side of the brake band, thereby enhancing the oil discharge characteristic and reducing the shock during speed change.
    Type: Grant
    Filed: February 1, 1990
    Date of Patent: August 4, 1992
    Assignees: NSK-Warner K.K., Nissan Motor Co., Ltd.
    Inventors: Shigeki Umezawa, Yoshiaki Kato
  • Patent number: 5133513
    Abstract: A brake band for the bobbins used on a rigid frame wire strander. The brake band is a substantially non-porous polyester strip or band, preferably made of polyethylene terephthalate (PET). The band is provided with a longitudinal crease for keeping the band centered on the hub of the bobbin with which it is associated.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: July 28, 1992
    Assignee: Southwire Company
    Inventor: Vincent T. Cassidy
  • Patent number: 5131509
    Abstract: A band brake apparatus functions to brake a rotary drum, wherein the magnitude of the braking force is independent of the direction in which the drum rotates. The band brake apparatus comprises first and second brake bands situated next to one another and encircling a reversible rotary drum. Each band has an anchored end anchored to a casing, and a displaceable end. The displaceable ends of both bands are connected to a common actuating lever. One band encircles the drum clockwise from its displaceable end, whereas the other end encircles the drum counterclockwise from its displaceable end. Each band includes a hole through which an end of the band extends, in order to form a loop encircling the drum.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: July 21, 1992
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae H. Moon, Jong D. Kwak, Jong K. Lee, Won K. Ahn
  • Patent number: 5086887
    Abstract: An anchor pin for a brake band having a reaction surface which provides at least a line of contact between itself and the surface of the brake band anchor bracket and also allows the pin to be oriented such that its centerline need not pass through the center of the brake drum. The reaction surface angle relative to the centerline of the pin is defined by a plane which includes the axis of rotation of the drum and a point of contact between the brake band and the pin. The reaction surface is normal to the direction of force applied by the brake band.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: February 11, 1992
    Assignee: General Motors Corporation
    Inventors: Keith D. Van Maanen, Jeffrey K. Baran
  • Patent number: 5074386
    Abstract: A casing brake is disclosed for use in combination with a generally tubular stuffing horn over which casing is released for filling with material discharged from the horn. The brake is of the type which includes a rigid housing which retains a deformable insert that fits over the horn and cooperates with the horn to engage the casing against the horn. Thus casing brake includes a first annular insert that has a throughbore with a circumferential groove on the inside of the throughbore with a second annular inner member which is comprised of a helical coil positioned within the groove, the inner member preferably being comprised of polytetrafluoroethylene with the outer member being elastically deformable with respect to the inner member to thereby alter the effective diameter of the groove causing an increase or decrease the diameter of the coil which, in turn, more loosely or more tightly grips the outside surface of the casing as it passes over the horn.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: December 24, 1991
    Assignee: Delaware Capital Formation, Inc.
    Inventor: Alfred J. Evans
  • Patent number: 5052524
    Abstract: A brake assembly for a rotatable wheel in which the rim of the wheel has an integrally formed lip extending from the side thereof and forming a trough. A Kevlar.TM. aramid fiber jacketed cable, positioned in the trough, encircles the lip in the direction of rotation of the wheel. The cable is affixed to the frame at one end and to an operating lever at the other end. Moving the lever tensions the cable and applies a frictional load to the trough to brake the wheel. In a second embodiment, a pair of opposed lips, one on either side of the rim, increases the braking effect.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: October 1, 1991
    Inventor: Royce H. Husted
  • Patent number: 5027678
    Abstract: This invention is a cam actuator means with connector assembly with one embodiment being a stud extractor and wrench apparatus operable to utilize a cam insert member mounted within an outer housing member being engagable with a damaged bolt head on a stud member using a cam actuator clamping action to grasp same for inserting and removing. A second embodiment is a main brake lock apparatus having a brake insert member mounted within an outer brake housing member being engagable with a rotating shaft to achieve a braking or clutching action therewith through a cam actuator clamping action. The brake actuator assembly uses a piston and cylinder actuator assembly selectively operable through fluid control means to contact and engage the shaft for the braking or clutching action. A third embodiment is a bolt and elliptical lock nut apparatus having an inner lock cam insert member mounted within a main lock nut assembly.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: July 2, 1991
    Inventor: Robert M. McCollom
  • Patent number: 5018434
    Abstract: The present invention is directed to a self-adjusting servo mechanism (10). The servo pin (30) presented from the servo mechanism (10) will protract sufficiently to effect operative engagement of a friction band assembly (13) with a rotating member (18) in a planetary gear set--even though the required axial displacement of the servo pin (30) during such protraction may exceed the axial displacement through which the servo pin (30) was previously retracted. The servo mechanism (10) is incorporated in a housing (20). The housing (20) presents a socket cavity (24) within which an actuating piston (33) is received for axial displacement.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: May 28, 1991
    Assignee: General Motors Corporation
    Inventor: Raymond J. Haka
  • Patent number: 5016521
    Abstract: The present invention is directed to a self-adjusting servo mechanism (10). That is, the servo pin (30) presented from the servo mechanism (10) will protract sufficiently to effect operative engagement of a friction band assembly (13) with a rotating member (18) in a planetary gear set--even though the required axial displacement of the servo pin (30) during such protraction may exceed the axial displacement available to the actuating piston (33). The servo mechanism (10) is incorporated in a housing (20). The housing (20) presents a socket cavity (24) within which an actuating piston (33) is received for axial displacement through a predetermined distance. The servo pin (30) is supported by the housing (20) for axial reciprocation, and a coupling means (35) is interposed between the servo pin (30) and the actuating piston (33) operatively to protract the servo pin (30) in response to displacement of the actuating piston (33).
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: May 21, 1991
    Assignee: General Motors Corporation
    Inventor: Raymond J. Haka
  • Patent number: 4997067
    Abstract: A friction apparatus which includes a liner having a friction surface. The liner includes a fabric having fluorine fibers. The liner also comprising a resin.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: March 5, 1991
    Assignee: Fenner America, Inc.
    Inventor: Anthony P. Watts
  • Patent number: 4981069
    Abstract: A cylinder locking device comprises a thick cylindrical brake member whose inner diameter is slightly smaller than the outer diameter of a piston rod to be locked. The cylindrical brake member is disposed in a casing and fitted on the piston rod, and has a slit opening formed axially therein. Two receive rollers are disposed oppositely and rotatably on both margins of the slit opening. An actuator having a tapered portion is disposed in the casing. The locking of the piston rod is released when the tapered portion is forced in between the receive rollers to expand the cylindrical brake member. When the actuator is not in actuation, the piston rod is strongly gripped and locked by the elasticity in the diameter-decreasing direction of the cylindrical brake member.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: January 1, 1991
    Inventor: Akio Matsui
  • Patent number: 4953415
    Abstract: The invention relates to an arrangement for converting reciprocating motion into even rotational motion. The arrangement comprises a frame (1), a flywheel (2), a pull member (3) attached to the flywheel by means of a free gear mechanism (4), and a brake band arranged to resist the rotational motion of the flywheel (2). In order to achieve smooth operation without jerks, the arrangement comprises a relief member (7) connected to the frame by means of a lever mechanism (4). When the pull member (3) is pulled (A), it presses the relief member (7) and turns the lever mechanism so that the brake band is tightened against the flywheel. When the free gear mechanism (4) draws the pull member in direction (B), the lever mechanism (9) is arranged to turn so that it reduces the tightening force exerted by the brake band on the peripheral face of the flywheel. (FIG. 1).
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: September 4, 1990
    Assignee: Tunturipyora Oy
    Inventor: Kari Lehtonen
  • Patent number: 4930373
    Abstract: Herein disclosed is a brake system for use with an automatic transmission for braking a rotatable member such as a brake drum, which is accommodated in a casing and connected to the sun gear or the like of a planetary gear mechanism, by bringing a brake band having two ends into contact with the outer circumference with the rotatable member.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: June 5, 1990
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasunori Nakawaki, Fumihiro Ushijima, Akio Numazawa, Toshiyuki Asada
  • Patent number: 4896899
    Abstract: A go-cart vehicle, made from high strength, molded engineering plastics, has a steering shaft tilt assembly which includes a steering shaft (66) slidable in a pivot bushing (70) carried by a bracket (73). The shaft pivots at a U-joint (78) and the bracket (73) pivots at its base. The bracket carries a detent--a cylinder (94) attached to the base (74) of the bracket (73). The cylinder (94) has a number of holes (93) to engage a latch pin (92) which is controlled by a release lever (95) operated by a release button (102). The shaft (66) may be adjusted to varying angles of tilt by moving the latch pin from hole to hole which motion causes the bushing, shaft and bracket to pivot in unison as the shaft slides in the bushing. The vehicle combines a change in caster angle (12) to about 12 degrees with a short, rigid chassis (2) and a live axle (45) to make it possible to turn a sharp corner at speeds of 20 mph or less.
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: January 30, 1990
    Assignee: Action Products, Inc.
    Inventor: Don R. Lawrence
  • Patent number: 4892360
    Abstract: The brake activation apparatus comprises first and second brake devices capable of being selectively applied, a shifting mechanism for selectively applying either the first or second brake device and not the other, a mechanism for overriding the shifting mechanism for applying both of the first and second brake devices, and a mechanism for releasing the override during both normal and manual operation. The apparatus is useful in a power drive unit comprising a carrier having first and second planetary gears rotatably mounted on the carrier, first and second rotatably mounted sun gears in meshing engagement with the respective planetary gears, the sun gears each having a drive output portion for driving respective devices and a braking portion for cooperation with the first and second brake devices to control the output of the power drive unit by selectively braking the respective sun gears.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: January 9, 1990
    Assignee: Sundstrand Corporation
    Inventor: John D. Tysver
  • Patent number: 4891959
    Abstract: A brake mechanism for an automatic washer is provided wherein a brake band is engageable with a hub attached to the wash basket and has both of its ends pivotally mounted on pivot brackets so that braking is effective in either rotational direction of the basket. A spring interconnects the two brackets to continuously bias the band into tight engagement with the hub and a solenoid operated actuator is provided to overcome the force of the spring to loosen the brake. The brackets are mounted on a common pivot post so that one of the band ends will be pulled into radial alignment, by pivoting of the brackets, in either direction of rotation of the basket. This causes the mounting to act as a fixed mount increasing the bidirectional effectiveness of the brake.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: January 9, 1990
    Assignee: Whirlpool Corporation
    Inventor: Douglas E. Wood
  • Patent number: 4889211
    Abstract: A printing press idle roller braking system is provided with a friction member mounted to the printing press frame for making frictional circumferential contact with an outer circumferential periphery of a cylindrical idle roller to reduce and control the speed of rotation of the cylindrical idle roller to prevent accumulation of ink and lint on the outer circumferential periphery and create tension in the web sheet.
    Type: Grant
    Filed: September 14, 1988
    Date of Patent: December 26, 1989
    Inventor: Sterling R. Carlson