Abstract: A manual cup sealer includes a frame unit, a sliding carrier board slidably mounted in the frame unit and carrying a lower electric heat sealing die, a transmission shaft pivotally mounted in the frame unit, a first link coupled to the transmission shaft, a first spring member connected between the first link and the sliding carrier board, a die link connected to the transmission shaft through a second link and holding an upper electric heat sealing die, and a handlebar operable by a user to rotate the transmission shaft clockwise/counter-clockwise for causing the sliding carrier board to be moved in and out of the frame unit and the upper electric heat sealing die to be lowered toward the lower electric heat sealing die to seal a sealing film to a plastic cup in the lower electric heat sealing die.

Abstract: A tree stand hoist includes a holder frame with stop bars and harnesses for fastening to a tree, a bracket provided at the back side of the holder frame to support a cable wheel, a cable pulley assembly provided with a rope for fastening to the tree at a high place, a steel cable, which has one end fastened to the cable wheel and the other end inserted through the cable pulley assembly and terminating in a hook for hooking a tree stand, and a crank handle for rotating the cable wheel through a gear transmission mechanism to roll up the steel cable so as to lift the tree stand for setting up on the tree.

Abstract: A rear wheel synchronous brake system used in a pushcart such as a baby jogging stroller is disclosed to include two rear brakes respectively coupled to the two rear wheels of the baby jogging stroller, a hand control unit mounted on the handle of the baby jogging stroller at the top, and two brake lines coupled between the brake lever of the hand control unit and the two rear brakes for driving the rear brakes to brake the two rear wheels of the baby jogging stroller synchronously when the user pulling the brake lever.

Abstract: A front fork swivel control structure used in a jogging stroller is disclosed to use a button to control the position of a spring-supported locking shaft, for enabling the locking shaft to be selectively shifted between the locking position to lock the front fork to the front frame tube of the jogging stroller and to prohibit the front wheel from a swivel motion, and the unlocking position to unlock the front fork from the front frame tube for allowing a swivel motion of the front wheel. The button is operable with the foot when the user's hands are not free.

Abstract: A folding collapsible baby trailer is disclosed to include a bottom frame, two upright side frame, a transverse top bar, and a trailer bar, the bottom frame being formed of two side bars, a front bar and a rear bar, the front bar and rear bar of the bottom frame being substantially -shaped bars each having an elongated body disposed on the middle below the elevation of the side bars of the bottom frame and two angled end portions respectively extended from two ends of the elongated body and respectively pivoted to distal ends of the first and second upright side frames so that a flat horizontal space is defined above the elongated bodies of the front and rear bars of the bottom frame and below the elevation of the side bars of the bottom frame for receiving the transverse top bar and the upright side frames when the folding collapsible baby trailer collapsed.

Abstract: A folding collapsible frame structure for baby trailer is disclosed to include a bottom frame unit having a transverse front bar curved downwards without hindering movement of a young child in and out of the baby trailer, two upright side frames, respectively pivoted to the bottom frame unit at two sides, a transverse top bar, male and female coupling members respectively provided at the upright side frames and the ends of the transverse top bar for enabling the transverse top bar to be detachably connected between the upright side frames, a trailer bar pivoted to a bottom U-lug at the bottom frame unit and selectively locked between the extended position and the received position by a spring-supported locking member, which is coupled to the trailer bar by a slip joint.

Abstract: A jogging stroller in which a control block is coupled to the front fork and pivoted with the front fork to the front side of the front frame tube of the stroller frame, and an operation rod is provided in the control block and selectively shifted between a first position where the control block and the front fork are unlocked for a swivel motion relative to the front frame tube of the stroller frame, and a second position where the control block and the front fork are locked and prohibited from a swivel motion relative to the front frame tube of the stroller frame.

Abstract: A bicycle supportive wheel mounting structure, in which the wheel holder frame, which is fixedly fastened to the seat stays and chain stays of a bicycle to hold a supportive wheel at one side of the bicycle's rear wheel, has two braces connected between the flat mounting base and horizontal bar there and a reinforcing plate welded to the horizontal bar and one supportive wheel coupling fork at the horizontal bar and one of the braces to reinforce the structural strength.

Abstract: A detachable coupling block and base frame mounting arrangement includes a base frame adapted to hold a rear wheel, a coupling block mounted on the base frame at a front side and adapted to receive a connecting frame of a head frame unit for kick scooter, a sliding locking block slidably mounted in a longitudinal sliding groove at a bottom side of the base frame and adapted to lock the coupling block, wherein the coupling block has a front bottom hook inserted into a front notch on the base frame and a rear bottom hook inserted into an insertion hole on the base frame, and the sliding locking block has a front notch and a coupling hole adapted to receive the front bottom hook and rear bottom hook of the coupling block, enabling the coupling block to be locked upon a forward movement of the sliding coupling block in longitudinal sliding groove after insertion of the front bottom hook and rear bottom hook of the coupling block into the front notch and coupling hole of said sliding locking block.

Abstract: A tandem bicycle which includes a bicycle and a rear cycle unit coupled to the seat tube of the bicycle by a coupling, the rear cycle unit including a top tube, a down tube, a bottom bracket, a seat tube, a saddle and post assembly, a seat stay and bottom fork assembly, a free wheel, a crank and pedal assembly, and a handlebar, wherein the top tube and down tube of the rear cycle unit are respectively comprised of two sections pivotably connected together and secured in the operative position by a lock pin so that the rear cycle unit can be collapsed when not in use; a disk is mounted on the crank and pedal assembly and turned by it; an adjustable damper is mounted on the seat tube and down tube of the rear cycle unit and controlled by an adjustment screw to give a damping force to the disk.

Abstract: A detachable electric fan and more particularly a built-up electric fan comprising component parts of detachable stand and one set of built-up blade-protective covers for easy carriage and storage; a stand being consisted of a transverse base plate having a connection trough at the top in the center with rib channels provided, and an independent vertical frame plate having a control switch button set mounted thereon and elastic retainers and reinforcing ribs at the bottom for connection with the base plate; the blade-protective cover symmetrically arranged, each blade-protective cover being composed of two semi-circular cover plates with one symmetric set of pin holder and locking pin for easy assembly, each blade-protective cover being supported with a circular supporting plate by bolts, the rear blade-protective cover having an axial hole for insertion of motor shaft to let the fan blades be well protected; by the built-up component parts to form a detachable electric fan for easy carriage and to reduce the