Patent application number | Description | Published |
20090104059 | AIR PUMP HAVING SELECTABLE LOW PRESSURE AND HIGH PRESSURE MODE - An air pump, including: two cylinders, a big one and a small one, is fitted to each other by a contractible way. A head connects with the out end of the small cylinder. A pressure relief valve connects with the out end of the big cylinder. A first piston is fixed at the in end of the small cylinder and placed in the big cylinder. A first pipe, one end fixes on the out end of the big cylinder, and the other passes through the first piston and places inside the small cylinder. A first chamber with a passage communicating with the first pipe forms therein between the inside wall of the big cylinder and the outside wall of the first pipe. A second pipe, one end fixes at the out end of the small cylinder and communicates with the head in one-way air admission and the other fits into the first pipe by contractible way and communicates with it. A second piston, which is placed inside the small cylinder, fixes at the other end of the first pipe and the second pipe goes through it. A second chamber with a one-way passage communicating with the head forms therein between the inside wall of the small cylinder and the outside wall of the second pipe and between the out end of the small cylinder and the second piston. | 04-23-2009 |
20100035736 | ADJUSTABLE DUMBBELL SYSTEM - A dumbbell is described including a handle having a grip and at least one end, an inner plate mounted on the handle adjacent the grip, in a fixed rotational orientation, a support plate rotationally mounted on the handle adjacent the inner plate, at least one collar rotationally mounted on the handle adjacent the support plate, and rotationally fixed with the support plate, a selector knob rotationally mounted on the handle adjacent the at least one collar, and rotationally fixed with the collar, a weight plate removably mounted on the handle adjacent the at least one collar, and a means for selectively securing the support plate to the inner plate to resist the rotation of the support plate, collar and selector knob with respect to the inner plate and handle. | 02-11-2010 |
20100313623 | METHOD FOR MAKING BICYCLE PEDAL - Disclosed is a method for making a bicycle pedal, comprising the following steps: (A) cutting, in which an elongate metal plate is formed by pressing and two coupling holes are formed through the plate; (B) bending, in which the metal plate is bent to have the opposite ends jointed to each other, forming a circumferentially enclosed hollow pedal frame with the two coupling holes concentrically located and spaced from and opposing each other; and (C) welding, in which a collar is mounted outside the pedal frame concentric with respect to each of the coupling holes through welding to provide a sufficient contact area for rotatably receiving and supporting a spindle therein, whereby the pedal frame is rotatable about the spindle for pedaling operation of a bicycle. This method overcomes the various drawbacks occurring in metal-cast or plastic injection-molded bicycle pedals, providing economic advantages for high-mix low-volume productions. | 12-16-2010 |
20110003668 | ADJUSTABLE DUMBBELL SYSTEM - A dumbbell is described including a handle having a grip and at least one end, an inner plate mounted on the handle adjacent the grip, in a fixed rotational orientation, a support plate rotationally mounted on the handle adjacent the inner plate, at least one collar rotationally mounted on the handle adjacent the support plate, and rotationally fixed with the support plate, a selector knob rotationally mounted on the handle adjacent the at least one collar, and rotationally fixed with the collar, a weight plate removably mounted on the handle adjacent the at least one collar, and a means for selectively securing the support plate to the inner plate to resist the rotation of the support plate, collar and selector knob with respect to the inner plate and handle. | 01-06-2011 |
20120080099 | SCHRADER VALVE/PRESTA VALVE DUAL-MODE VALVE CAP - A Schrader (American) valve /Presta (French) valve dual-mode valve cap includes a casing having an axle hole and a through hole kept in communication, a rotating device rotatably mounted in the axle hole and having two opposing heads respectively disposed outside the axle hole with a respective screw hole defined therein for the connection of a Schrader (American) valve or Presta (French) valve, an accommodation chamber in communication between the two screw holes, an annular air passage defined in between the rotating device and the casing, a through hole in communication with the annular air passage and the accommodation chamber and two seal rings mounted on the periphery thereof at two sides of the annular air passage, a valve block movable back and forth in the accommodation chamber and having a seal ring mounted on the periphery thereof to divide the accommodation chamber into two spaces, and a spring member stopped between the valve block and a part of the rotating device to force the valve block toward the screw hole for Schrader (American) valve. | 04-05-2012 |
20120172182 | MULTI-GRIP DUMBBELL - The current application is directed to a multi-grip dumbbell. One example multi-grip dumbbell includes a central dumbbell handle, a first weighted head interconnected to the central dumbbell handle in proximity to a first end of the central dumbbell handle, and a second weighted head interconnected to the central dumbbell handle in proximity to a second end of the central dumbbell handle. The first weighted head has approximately the same weight as the second weighted head. The first weighted head includes a first end dumbbell handle and two side dumbbell handles. Similarly, the second weighted head includes a second end dumbbell handle and two side dumbbell handles. | 07-05-2012 |
20120186355 | AIR PUMP PRESSURE GAUGE - An air pump pressure gauge includes a casing, an inner tube coaxially affixed to the casing and defining with the casing an accommodation chamber, a movable member movable back and forth in the accommodation chamber, an end cap end cap set between the inner tube and the casing to seal one end of the accommodation space, a spring member stopped between the end cap and the movable member, at least one seal member mounted on the movable member to define a first airtight structure between the outer surface of the inner tube and the at least one seal member and a second airtight structure between the inside wall of the casing and the at least one seal member, an air hole in communication between the axial hole of the inner tube and the accommodation space, a longitudinal sliding slot located on the movable member, a rack extending along one side of the longitudinal sliding slot, a rotating axle inserted through the longitudinal sliding slot and having its inner end pivoted to the inner tube and its outer end extending out of the casing and a middle part thereof mounted with a gear being meshed with the rack, a pointer fixedly connected to the outer end of the rotating axle outside the casing, a graduation scale mounted on the casing below the pointer, and a transparent cover covering the graduation scale and the pointer. | 07-26-2012 |
20120193592 | OPERATING HANDLE ASSEMBLY FOR HAND AIR PUMP - An operating handle assembly used with a pump to constitute a hand air pump is disclosed in include a handgrip unit having a handgrip and a pivot, and a pumping rod unit pivotally coupled to the handgrip unit and turnable about a pivot center relative to the handgrip unit. The pumping rod unit includes a pivot holder pivotally coupled to the pivot of the handgrip, and a piston rod coupled to a piston hole of the pump and axially movable relative to the pump between a received position and a first extended position and turnable about the pivot center within a predetermined angle between the first extended position and a second extended position when the piston rod reaches the first extended position. | 08-02-2012 |
20120204973 | SCHRADER VALVE/PRESTA VALVE DUAL-PURPOSE VALVE CAP - A Schrader (American) valve/Presta (French) valve dual-purpose valve cap includes a casing comprising an axle hole, an end portion, and a through hole; a rotating device comprising a rod-like body and two heads, each head having a screw hole, the screw hole of one head being adapted for receiving a Presta valve, the screw hole of the other head being adapted for receiving a Schrader valve, the rod-like body comprising an accommodation chamber, two through holes and an annular groove, the annular groove defining an annular air passage, the rod-like body defining a through hole; two O-shaped seal rings sealed the annular air passage; and a ball accommodated in the accommodation chamber; wherein two semispherical recesses respectively formed on an inside wall of the accommodation chamber; the ball has a radius smaller than the radius of the semispherical recesses and greater than the radius of the through hole of each of the two heads. | 08-16-2012 |
20130008931 | ROOF RACK DEVICE - A roof rack device includes a base with a first through hole disposed on a car roof and two carrier members with a second through hole disposed on the base. The base is provided with pin and control members. The control member has a first buckle portion and a cam which pushes the pin member into the first and second through holes or out of the second through hole. The outer end of each carrier member has a lock seat with a second buckle portion. When the first and second buckle portions are engaged, the cam keeps the pin member in the first and second through holes and the carrier members are retracted. When the first and second buckle portions are disengaged, the cam acts on the pin member to disengage from the second through hole and the carrier members can be extended for dismounting the articles. | 01-10-2013 |
20130062879 | INFLATING HOSE CONNECTOR - An inflating hose connector includes a plug defining a plug body for insertion into one end of an inflating hose and a head at one end of the plug body, a locknut rotatably capped on the plug head, a connection member defining an outer thread on each of two opposing ends thereof for selectively fastening to the locknut, a Schrader (American) valve connection hole in one end thereof and a Schrader (American) valve connection hole in the other end thereof. Thus, the user can freely select a Schrader (American) valve or a Presta (French) valve, and fasten up the inflating hose connector with the selected Schrader (American) or Presta (French) valve conveniently by means of a screw joint, preventing loosening and facilitating application. | 03-14-2013 |
20130071264 | PORTABLE AIR PUMP WITH A PRESSURE GAUGE RECEIVABLE BY BIASING - A portable air pump includes a head member located on one end of the pump body thereof and having a beveled face, a biasing member carrying a pressure gauge and having a beveled face pivotally connected to the beveled face of the head member in such a manner that the biasing member is biasable relative to the head member between a received position where the biasing member is kept in axial alignment with the portable air pump and an extended position where the pressure gauge is kept facing toward the handle of the portable air pump convenient for reading by the user and the biasing member is workable as a footplate for supporting the portable air pump on the floor for use as a floor type air pump. | 03-21-2013 |
20130087228 | AIR PASSAGEWAY SWITCHABLE PUMP HEAD FOR AIR PUMP - An air passageway switchable pump head includes a housing defining a first air outlet passageway, an air intake passageway and a second air outlet passageway, a connection member mounted in the housing for connection to a valve, a switch valve consisting of a valve seat, a valve body and a spring member, and an operating member mounted at one end of the housing and operable to move the switch valve between a first position where a first air passageway of the switch valve is closed, allowing air communication between a second air passageway of the switch valve and the second air outlet passageway, and a second position where the valve body is moved toward the valve seat and closed on the valve seat to block the second air passageway of the switch valve and the first air passageway of the switch valve is opened. | 04-11-2013 |
20130183180 | SLIDING INFLATOR WITH INNER AND OUTER CYLINDERS - A sliding inflator with inner and outer cylinders is provided. The outer cylinder has a fixing element with an axial pipe protruding therefrom and having two through holes. A rotating element is disposed around the axial pipe and has two receiving chambers matching the through holes, respectively, and receiving a ball each. A gradually-deepened curved portion of the receiving chamber is defined between shallow and deep ends thereof. The rotating element rotates between an unlocked position and a locked position. A stopping element is fixed to the inner cylinder and has a protruding post with an annular groove. The rotating element switches from the unlocked position to the locked position to couple the cylinders together, and switches from the locked position to the unlocked position to release engagement between the cylinders. | 07-18-2013 |
20130236333 | Bicycle Pump with Universal Head - A bicycle pump comprises a head, a socket, a ball, a retaining collar, a cylinder, and a piston unit. The head is provided with a connection portion and defines an air inlet and an air outlet. The socket is provided in the head and defines a round recess and a through hole. The ball can be retained between the socket and the retaining collar and rotated about its center in all directions. The cylinder defines a chamber therein. Also, the cylinder has a first connection portion at one end thereof and defines an air outlet at a center of the first connection portion. The piston unit is provided for conducting reciprocating motion along the chamber of the cylinder, so that air in the chamber can be forced out of the air outlet of the cylinder and finally forced out of the air outlet of the head to inflate a tire. | 09-12-2013 |
20130330212 | Operating Handle Assembly for Hand Air Pump - An operating handle assembly used with a pump to constitute a hand air pump is disclosed, including a handgrip unit having a handgrip and a pivot, and a pumping rod unit pivotally connected to the handgrip unit and turnable about a pivot center relative to the handgrip unit. The pumping rod unit includes a pivot pivotally located at the pivot of the handgrip, and a piston rod coupled to a piston hole of the pump and axially movable relative to the pump between a received position and a first extended position and turnable about the pivot center within a predetermined angle between the first extended position and a second extended position when the piston rod reaches the first extended position. | 12-12-2013 |
20140190576 | HORIZONTALLY-TRIGGERABLE INFLATION CONNECTOR - A horizontally-triggerable inflation connector includes a casing, a packing unit, and a pull bar. The packing unit is received in the casing. The pull bar is arranged outside the casing and coupled to the packing unit. The pull bar is horizontally and reciprocally movable between a released position and a secured position. When the pull bar is at the released position, the packing unit is set in a released condition and when the pull bar is at the secured position, the packing unit is set in a compressed condition. Thus, the horizontally-triggerable inflation connector is operable to selectively secure or release an air valve so as to achieve convenience of operation. | 07-10-2014 |
20140263507 | ANGLE-ADJUSTABLE WATER BOTTLE CAGE - An angle-adjustable water bottle cage includes a cage body for holding a water bottle, a mounting assembly for fastening to a bicycle frame. The cage body provides a fastening member fastenable to the mounting assembly, and an anti-rotation member. The mounting assembly provides an anti-rotation member detachably abutted against the anti-rotation member of the cage body for enabling the cage body to be adjustably fastened to the mounting member by the fastening member in one of a series of angular positions. | 09-18-2014 |
20140265255 | DUAL-PURPOSE SAFETY BABY CARRIER - A dual-purpose safety baby carrier includes a seat having armrests and a bottom to which a cover defining a receiving chamber is mounted. Upper and lower positioning sections are mounted to a back of the seat. A control bar is movable along the upright tubes between a position where a push key of a safety switch engages the upper positioning section to allow a wheel frame carrying wheels to be retracted into the receiving chamber for serving as a safety seat and a position where the push key engages the lower positioning section to allow the wheel frame to be expanded to form a stroller. The safety switch also includes a push button biased by a spring for locking the push key in position of engaging the upper or lower positioning section. A securing structure includes coupling members mounted to the seat for coupling a seat belt. | 09-18-2014 |
20140286796 | AIR PUMP WITH TWO PRESSURE GAUGES FOR HIGH/LOW PRESSURE INDICATION - An air pump includes an air pump body for pumping air, and a high pressure gauge and a low pressure gauge mounted in the air pump body for measuring and indicating the air pumped by the air pump body. | 09-25-2014 |
20140345747 | AIR PUMP WITH A BIASABLE HEAD - An air pump with a biasable head is disclosed to include a head connectable to an air valve of an inflatable object, a cylinder providing an air output end, and a flexible air guide tube haying a front end thereof fixedly connected to the head and an opposite rear end thereof connected to the air output end of the cylinder. Subject to the arrangement of the flexible air guide tube, the air pump does not vibrate the connected air valve during its operation. Further, the flexible air guide tube has a short length, and can positively maintain the head in connection with the cylinder during delivery, avoiding disconnection of the head from the cylinder. | 11-27-2014 |
20140349820 | ADJUSTABLE DUMBBELL SYSTEM - An adjustable dumbbell system includes a handle including a grip, two hanging rods at two ends of the grip and multiple through holes at each hanging rod, multiple weights, each weight defining an elongated top slot and a bottom opening and having a scissor hook mounted therein, the scissor hook including a hook unit, an actuation unit drivable by an external force to open or close the hook unit and elastic members adapted to hold the hook unit in the close position, a holder base for accommodating the weights, and a selector including multiple control units that are attached to the bottom openings of the weights when the weights are accommodated in the holder base and a selector rotatable to move the control units in driving the actuation units of the scissor hooks of the weight to open or se the hook units of the respective scissor hooks. | 11-27-2014 |