Ratchet Bar Patents (Class 188/200)
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Patent number: 11827266Abstract: Disclosed is a braking mechanism for locking a wheel of a baby carriage. The braking mechanism includes a driving member and a locking member. The driving member is pivotally connected to a wheel seat of a frame of the baby carriage, a guiding opening is arranged in the wheel seat, an engaging part is arranged on a side surface of a hub of the wheel, a driving slot is arranged in the driving member, one end of the locking member is slidably arranged in the driving slot, and another end of the locking member is configured to slidably pass through the guiding opening, so that when the driving member rotates, the driving member drives the locking member to engage with the engaging part or disengage from the engaging part. In addition, the present invention further discloses a baby carriage.Type: GrantFiled: November 2, 2021Date of Patent: November 28, 2023Assignee: WONDERLAND SWITZERLAND AGInventor: Wanquan Zhu
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Patent number: 11059469Abstract: A brake cylinder for a railway vehicle includes a body, a piston assembly including a piston member and a rod having a threaded surface, and a parking brake locking mechanism including a working nut, a locking gear, and a locking pawl, with the working nut having a threaded surface engaged with the threaded surface of the rod. The piston member has a first position and a second position in a direction extending from the second end of the body toward the first end of the body. The working nut is fixed relative to the locking gear. The locking pawl has an unlocked position spaced from the locking gear and a locked position engaged with the locking gear. The piston is restricted from moving from the second position to the first position when the locking pawl is in the locked position.Type: GrantFiled: May 1, 2019Date of Patent: July 13, 2021Assignee: WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATIONInventors: Ryan Repko, Nicholas Lee Bressler
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Patent number: 10259483Abstract: A stroller including a pair of wheels and a cross bar extending therebetween. A pedal is coupled to the cross bar, and is transitional relative thereto between locked and unlocked configurations. A pair of braking pins is operatively coupled to the pedal. Each braking pin is transitional relative to a corresponding wheel between locked and unlocked configurations. Each braking pin is engaged with the corresponding wheel when the braking pin is in the locked configuration, and each braking pin is disengaged with the corresponding wheel when in the unlocked configuration. The braking pins are coupled to the pedal such that movement of the pedal from the unlocked configuration to the locked configuration causes the braking pins to transition to their respective locked configurations, and movement of the pedal from the locked configuration to the unlocked configuration causes the braking pins to transition to their respective unlocked configurations.Type: GrantFiled: August 3, 2017Date of Patent: April 16, 2019Assignee: Diono, LLCInventors: Nigel Plested, Paul Richardson
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Patent number: 10106160Abstract: A driving aid arrangement configured to control a longitudinal velocity of a host vehicle, the arrangement including a driving environment monitoring unit, a road friction estimation unit configured to provide a road friction estimate, and a velocity control unit configured to control the velocity of the host vehicle on the basis of the monitored driving environment and the road friction estimate. The velocity control unit is further configured to control the velocity of the host vehicle on the basis of a pre-set road friction value, corresponding to a high road friction value, if the road friction estimation unit is unable to provide the road friction estimate. The driving aid arrangement further comprises an enhanced braking system arranged to provide an emergency braking of the vehicle upon detection of a crash threat event.Type: GrantFiled: October 6, 2016Date of Patent: October 23, 2018Assignee: Volvo Car CorporationInventors: Jonas Nilsson, Mattias Erik Brannstrom
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Patent number: 8636117Abstract: A safety stop is provided for stopping a movable member having at least one set of opposed wheels for gripping a rail. The stop has a track on each of opposite sides forming a wedge shape of a narrow end progressively widening to a wide end in a direction of travel of the movable member. With the opposed wheels of the movable member respectively at opposite sides of the wedge shape member, the tracks of the wedge shape member engage and impart a spreading strain to the opposed wheels as the movable member moves in the direction of travel. The opposed wheels of the movable member comprise a deformable material to absorb the kinetic energy of the movable member. The tracks of the stop additionally may have undulating features comprising concave and convex surfaces in the direction of motion.Type: GrantFiled: September 30, 2010Date of Patent: January 28, 2014Assignee: International Business Machines CorporationInventors: Shawn Michael Nave, Lee Curtis Randall, Raymond Yardy
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Patent number: 8596422Abstract: A safety stop is provided for stopping a movable member having at least one set of opposed wheels for gripping a rail. The stop has a track on each of opposite sides forming a wedge shape of a narrow end progressively widening to a wide end in a direction of travel of the movable member. With the opposed wheels of the movable member respectively at opposite sides of the wedge shape member, the tracks of the wedge shape member engage and impart a spreading strain to the opposed wheels as the movable member moves in the direction of travel. The opposed wheels of the movable member comprise a deformable material to absorb the kinetic energy of the movable member. The tracks of the stop additionally may have undulating features comprising concave and convex surfaces in the direction of motion.Type: GrantFiled: April 23, 2012Date of Patent: December 3, 2013Assignee: International Business Machines CorporationInventors: Shawn Michael Nave, Lee Curtis Randall, Raymond Yardy
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Patent number: 7143874Abstract: A surge brake actuator is disclosed. The actuator includes an actuator housing and a coupler housing movably engaged within the actuator housing. Upper and lower coupler slide channels formed from a plastic material are releasably connected to the coupler housing and contact the actuator housing. The plastic coupler slide channels reduce frictional loss and provides superior brake actuation output when the coupler housing retracts into the actuator housing during braking. The surge brake actuator includes a push rod assembly that also provides superior brake actuation output to the actuator and can engage the actuator during a breakaway event. The surge brake actuator includes a releasably engagable reverse lock that prevents brake actuation while the towing vehicle moves in reverse.Type: GrantFiled: September 21, 2004Date of Patent: December 5, 2006Assignee: Cequent Trailer Products, Inc.Inventors: Michael J. Roll, Kawa-She-Quoen Wm. Okerlund
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Patent number: 7018591Abstract: A vapor-phase tubular reactor in a shell heat exchanger for removal of the heat of reaction at essentially isothermal conditions has porous wicking surface applied to the external surface of reactor tubes. The porous wicking surface on the reactor tubes draws liquid heat transfer fluid from a reservoir at the bottom of the wicked tube section and provides enhanced evaporative cooling. The invention is particularly useful for highly exothermic reactions or when reaction selectivity is negatively affected by high temperature excursions.Type: GrantFiled: January 12, 2002Date of Patent: March 28, 2006Assignee: Saudi Basic Industries CorporationInventor: Vinh N. Le
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Patent number: 6848546Abstract: A surge brake actuator is disclosed. The actuator includes an actuator housing and a coupler housing movably engaged within the actuator housing. Upper and lower coupler slide channels formed from a plastic material are releasably connected to the coupler housing and contact the actuator housing. The plastic coupler slide channels reduce frictional loss and provides superior brake actuation output when the coupler housing retracts into the actuator housing during braking. The surge brake actuator includes a push rod assembly that also provides superior brake actuation output to the actuator and can engage the actuator during a breakaway event. The surge brake actuator includes a releasably engagable reverse lock that prevents brake actuation while the towing vehicle moves in reverse.Type: GrantFiled: October 2, 2002Date of Patent: February 1, 2005Assignee: Cequent Trailer Products, Inc.Inventors: Michael J. Roll, Kawa-She-Quoen Wm. Okerlund
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Publication number: 20040011606Abstract: Disclosed is a road surface braking system for an automobile which is totally different in conception and structure from the prior art. The braking system includes a hydraulic source, an on/off hydraulic source operating switch which puts the source into an operative state or a non-operative state, a piston device connected to the source such that it can be operated to be extended and withdrawn in response to the amount of force applied from the source and can be driven by the source, and a road surface braking member connected to the piston device such that it can be contacted and separated from the road by the piston device and can be driven by the piston device. Also, the braking system further includes a switch controlling device for controlling the on/off hydraulic source operating switch so that the hydraulic source can be operated only under certain predetermined conditions.Type: ApplicationFiled: November 4, 2002Publication date: January 22, 2004Inventor: Kyu H. Lee
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Publication number: 20020153210Abstract: An aluminum alloy brake disc body for a disc brake device is provided with a metal layer of a high wear-resistance. The high wear-resistance metal layer is configured to reduce thermal stresses within the aluminum alloy brake disc body so as to inhibit warping, bending or flexing of the brake disc when heated during braking. The high wear-resistant metal layer also is applied to the aluminum alloy brake disc body in a manner reducing manufacturing costs. In one mode, a plating layer made of a metal having a high wear-resistance is formed on a frictional surface of an aluminum alloy brake disc body. Cracks in the form of a fine network are formed in the whole area of the plating layer. The cracks can be formed by a plating process, by nitrosulphurization, by heating, by burnishing or by use of the plated component. The cracks advantageously provide for expansion between the individual metal fragments and, thus, create an expandable plated wear surface.Type: ApplicationFiled: December 2, 1999Publication date: October 24, 2002Applicant: Knobbe, Martens, Olson & Bear LLPInventors: HIROTAKA KURITA, HIROSHI YAMAGATA, TOSHIKASTU KOIKE
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Publication number: 20020125083Abstract: The invention is a brake disk and a method of producing the same. The brake disk has at least one friction ring which can be engaged by a brake shoe on at least one side. The friction ring is divided into at least two ring segments having mutually facing end areas configured to be coupled with one another adjacent a junction and separation area. A separation gap is formed between the mutually facing end areas, which mesh with one another. At least one connection device is positioned in the junction and separation area for coupling the ring segments together.Type: ApplicationFiled: May 10, 2002Publication date: September 12, 2002Applicant: Knorr-Bremse Systeme Fur Schienenfahrzeuge GMBHInventor: Xaver Wirth
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Patent number: 5259485Abstract: A slack adjuster adapted for use in railroad truck car braking mechanisms. The slack adjuster compensates for wear of the truck car brake shoes by automatically adjusting the length of travel of the brake cylinder piston rod as the shoes wear. The slack adjuster of this invention includes a linkage connected between the air cylinder piston rod and one end of the slack adjuster. The invention also includes a bolster mounted linkage stabilizer which interconnects the other end of the slack adjuster, the brake lever, and the piston rod to eliminate oscillation of the piston rod during operation.Type: GrantFiled: October 5, 1992Date of Patent: November 9, 1993Assignee: Triax Tube CompanyInventor: Robert G. Jackson
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Patent number: 4776439Abstract: The present invention relates to a disc brake having a lever-type caliper, suitable for use on railway vehicles. The lever caliper type disc brake comprises a pair of pivotally mounted lever arms with an actuator arranged to act between said lever arms to cause the lever arms to pivot and apply the brake. An adjustable pad positioning device is connected to one lever arm to limit the available pivotal movement for said one lever arm when said actuator is in a brakes released position. The adjustable pad positioning device thus restricts the available movement for said one lever arm when the actuator is in the brakes released position so that the pad carried by said one lever arm is always held at a defined distance from the rotating disc in the brakes released position.Type: GrantFiled: April 14, 1987Date of Patent: October 11, 1988Assignee: Lucas Industries public limited companyInventors: Colin J. F. Tickle, David F. Russell, John Adamson
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Patent number: 4706786Abstract: The pull- or push rod of a brake linkage, preferably in the form of a brake clamp, features a double spindle (21) whose oppositely directed threaded ends (20) are screwed into nuts (14) which have a self-locking thread and are hinged to brake levers (4). A flat spiral spring (23) continuously loads the double spindle (21) in the direction of rotation for brake clearance adjustment, while a rotary lock keeps the double spindle (21) in place when the brakes are released. Upon achievement of an application stroke or pressure, for the brakes, the rotary lock is released, and by turning the double spindle (21), excessive play of the brakes at the beginning of the braking process is compensated immediately and completely.Type: GrantFiled: January 27, 1986Date of Patent: November 17, 1987Assignee: Knorr-Bremse AGInventor: Julius Nadas
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Patent number: 4016959Abstract: Movement of a fluid pressure operated piston serves to engage a scrubber block with a railway wheel by means of motion of a piston rod. The piston rod is toothed to engage a take up mechanism for adjusting a clearance between the scrubber block and the wheel.Type: GrantFiled: February 13, 1976Date of Patent: April 12, 1977Assignee: Societe S A BInventors: Pierre R. Menard, Andre Ledoux