72results about How to "Quick collapse" patented technology

A speculum for dilating a body cavity with at least three blades, twice as many supporting members, a rachet mechanism between pairs of directly connected supporting members, and a light source receptacle located on one of the blades with a curved plastic track at the base of the receptacle to transmit light from a removable, commercially available, light source into the cavity created by the speculum. Two of the supporting members, besides helping to move the blades from a closed to an open position and back, can also pivot anteriorly.

A colapsible rear projectrion screen assembly for a portable visual display device. Embodiments are presented that include a flexible screen supported by a surrounding rigid screen that collapses by a ssimple folding movement for easy transport while also removing any risk of opticql or physical damage to the screen member material in the collapsing process.

A travel bag is provided that includes a back wall and a foldable end wall, to facilitate compact storage when not in use. The bag includes a support assembly having two support arms, extending between the end wall and the back wall. The support arms are disposed proximate to sidewalls of the bag body. In this manner, the support arms provide rigid support to maintain the end wall in an expanded position and provide support to the sidewalls. The support assembly maintained in place by a clip disposed on an interior side of the back wall. A user can quickly collapse the end wall by removing the support assembly from the clip.

Medical devices with novel spark gap electrode designs, able to control manually or automatically the electrodes gap are provided. These devices are used to generate a shock wave created by the rapid expansion and collapse of a plasma bubble that is formed between two spark gap electrodes placed in a special liquid medium, when a high differential voltage (kV) is applied to the electrodes. The resulting shock wave impacts a reflector to direct the energy into the body of an animal or a human toward the desired treatment location. This electro-hydraulic principle to create acoustic shock waves as a method of treatment is in use in the medical (lithotripsy, orthopedic use, wound treatment, burns, post-operative treatment, pain treatment, diagnosis, skin and organ transplantation supporting devices, arteriosclerosis treatment), cosmetic (treatment of scars and cellulite) and veterinary (treatment of musculoskeletal disorders) fields.

One embodiment of a tricycle (20) having a spine frame (22), supported by a rear wheel (34) and a pair of steerable front wheels (36), and supporting a recumbent seat (42) pivotably attached at its rear. A pedal boom (44) extends forwardly of the spine (26) and supports a pedal crank assembly (46). The front wheels each support a lateral arm (28) with the front wheel pivotably attached at the distal end and an angular projection (80) attached at the proximal end. A pivot (78) connects each angular projection to the spine, allowing the lateral arms and attached front wheels to fold to a stowed position alongside the spine. Another pivot (84) connects the boom to the spine, allowing the boom fold back to a stowed position against the spine. In the travel position, clamping means arrest the angular projections, and can arrest the boom and seat. The tricycle is collapsible to several levels of compactness. Other embodiments are described and shown.

A deployable photovoltaic array comprising a plurality of photovoltaic modules attached to a collapsible support unit, where said support unit is made up of a pair of laterally spaced similar pantographs. Each pantograph has the form of a plurality of interconnected rhombs made by pivotally joined elongated arms. Two opposite sides of each solar module are attached to a pair of corresponding nearest parallel arms on the opposite sides of said pantographs. Said array in its deployed condition for large solar elevation angles acquires a characteristic staircase-like form. Angles of said rhombs may further be adjusted to achieve an optimal inclination of said solar modules with respect to the current direction to the sun. In the stowed configuration said array may be held in a protecting container, and is readily portable.

A method and machine for treating yarn may include feeding the yarn through both a heat treatment and an air jet texturing nozzle. The texturing nozzle may be supplied with compressed air, producing an air jet with a speed greater than Mach 1 in the yarn channel. The heat treatment may be performed before and/or after feeding the yarn through the texturing nozzle.

Novel rapid, efficient sample collection systems, devices and methods are disclosed which remove and capture particles, and especially potential bioterrorism particles from surfaces into a liquid sample. The devices were developed primarily for obtaining samples of biological contamination from environmental surfaces. Biological particles, as described here, include bacteria, viruses, and other microorganisms, and other particles of biological origin including nucleic acids, proteins, and toxins.

A third wheel collapsing device for a golf club cart includes a third wheel support frame having a U-shaped frame fixed pivotally with a third wheel and a hollow support arm fitted therein with a fit block. The support arm and the fit block respectively have insert holes and connecting holes. A support base assembled on the support arm has a pivotal shaft under the bottom and a threaded hole before the pivotal shaft for receiving an elastic lock member, which has an engage rod pressed downward by a spring and controlled by a user. The support base has a fastening frame fixed with the lower end of the main frame of a golf club cart. When the engage rod is pulled upward and removed out of the first insert hole of the support arm and the first connecting hole of the fit member, the third wheel support frame can be transversely collapsed.

The invention relates to a process for production of zeolites from raw materials with alkali alumino-hydrosilicate content comprising converting the alkali alumino-hydrosilicate content of the raw material into an amorphous state by acidic treatment, separating the intermediate amorphous solid material from the liquid phase and optionally purifying same, re-suspending it in water, alkalizing the suspension, followed by forming a slurry of the composition corresponding to the type of zeolite to be manufactured optionally by blending it with components containing SiO2, and/or Al2O3 and/or Na2O, followed by crystallization by method known per se after optionally adding crystal nuclei and/or aging of the synthesis slurry and separating the obtained zeolite product.

A seat installation for a combat vehicle which protects an occupant from the effects of an explosion detonated beneath the vehicle in which breakaway structures are interposed between a seat pan and the vehicle floor which initially rapidly drives the seat up after the explosion, but which quickly breaks away to avoid spinal compression injury. A crushable energy absorbing structures thereafter absorb the floor motion, each structure comprised with a vertical stack of crushable energy absorbing cells which are successively crushed at higher force levels to adapt the seat installation to varying weight occupants. A pivoted foot rest provides spaced above the floor which mitigates injuries to the feet and legs by allowing the feet to avoid contact with the floor and which swing up and away from the floor while avoiding tipping of the seat.

A collapsible roasting oven includes a base, two side plates, a cover and a rear plate combined together. The base has two opposite sides respectively and pivotally combined with one side plate by means of hinges. Each side plate is composed of an upper folding plate and a lower folding plate pivotally connected together by hinges. The cover is pivotally mounted at the topside of the two side plates by hinges, having a heater installed at the topside. The rear plate is pivotally assembled at the rear side of the cover by hinges. The roasting oven of this invention is needless to be assembled and able to be quickly expanded from the collapsed condition for use without help of any tool, and also able to be collapsed quickly and convenient for saving storing space and for to be carried about.

A collapsible hanging shoe rack may include a plurality of shoe retaining members with two parallel side arms integratedly connected with a horizontal arm, and a plurality of connecting units having a first end and a second end. In one embodiment, the shoe retaining members are arranged in a reverse U-shaped manner in the hanging shoe rack, and each of the shoe retaining members is connected with the connecting unit. More specifically, the shoe retaining member is disposed tiltedly and spacedly with other shoe retaining members in a parallel manner. When the shoe rack is hung on the door, it can be pulled down and fully extended by gravity without applying any external forces. When it is taken off from the door and put it on the ground, the shoe rack can be quickly collapsed due to the gravity as well.

The invention discloses a foldable infant carriage frame. The foldable infant carriage frame comprises a front foot stand, a rear foot stand, a carriage hand rack and a seat portion. The upper end of the front foot stand is in pivot joint to the lower end of the carriage hand rack. The upper end of the rear foot stand is in pivot joint to the side portion of the carriage hand rack. The seat portion is arranged between the front foot stand and the rear foot stand. The seat portion comprises a front seat plate, a rear seat plate and a clamping mechanism. The front seat plate is fixed to the front foot stand, and an acute angle is formed between the front seat plate and the front feet stand. The rear seat plate is in pivot joint to the rear feet stand, and the front seat plate is in pivot joint to the rear seat plate. The front feet stand, the rear feet stand, the carriage hand rack and the rear seat plate form a four-bar linkage mechanism provided with four rotating pivot points. The clamping mechanism limits the relative rotation of the front seat plate and the rear seat plate, so that the front seat plate and the rear seat plate are maintained in the same horizontal plane to form a seat plane of the seat portion. The clamping mechanism limits relative pivot rotation of the front seat plate and the rear seat plate, so that locking or unlocking of the foldable infant carriage frame is achieved. Compared with the prior art, the foldable infant carriage frame has the advantages of being simple in structure and convenient to operate.

A downhole tool member for hydrocarbon resource recovery, comprising a shaped body of a polyglycolic acid resin blended with an inorganic or organic short fiber reinforcement material, and having thickness reduction rate characteristics when held in water at 120° C., inclusive of: an initial thickness reduction rate (as an average for a holding period for 4 hours) which is at most 0.8 times that of a shaped body of the polyglycolic acid resin alone, and has a terminal thickness reduction rate (after the thickness decreases to 50% or less of an initial thickness) which is larger than 1.5 times the initial thickness reduction rate. As a result, it is possible to provide a downhole tool member, that is a temporary tool for formation or repair of downholes for recovery of hydrocarbon resources including oil and gas, or a part of the tool, which allows more accurate designing of collapse characteristics thereof.

The invention provides a folding oven. The oven body is mainly composed of a base plate, two side plates, a cover plate and two hanging plates. A side board is arranged on each of two sides of the base plate, a plurality of lugs are arranged on the opposite inner sides of the two side plates, and the lugs are capable of setting up a barbecue net. The cover is arranged above the two side plates and a heater is arranged on the cover which is further provided with a positioning board for a gas tank positioning. Two hanging plates are respectively arranged on the front side and the rear side of the two side plates in group mode and hangers are arranged on the upper edge of the hanging plates in bending mode. The gas tank is arranged on one side of the heater, so that the oven can be assembled conveniently and quickly without using tools to roast food, and can be used indoors and outdoors. The two hanging plates can be taken away from the cover and be hanged in the front of and in the back of the base plate to form a supporting surface which can be used for placing articles and be quickly folded and stacked. Moreover, the supporting surface is small in whole volume after being folded, convenient to carry, capable of performing one-way or double-way roast and capable of forming an oven body which can be used as an oven.