1453results about How to "Prevent sinking" patented technology

The invention provides a fluid product service life testing device. The fluid product service life testing device comprises a fluid generation device, a fluid product testing region and a washing device, wherein a fluid circulating pipeline is formed between the fluid generation device and the fluid product testing region; fluid flows into the fluid product testing region from the fluid generationdevice and then continually flows back into the fluid generation device; the washing device is communicated with the fluid circulating pipeline; the washing device is communicated with the fluid product testing region and then is communicated with the fluid generation device through the fluid circulating pipeline; the fluid generation device is connected with a sediment recycling device. The fluid product service life testing device can be used for testing the service life of a product through simulating fluid flowing of production conditions.

Repairs of cartilage defects or of cartilage/bone defects in human or animal joints with the help of devices including a bone part (1), a cartilage layer (2) and a subchondral bone plate (4) or an imitation of such a plate in the transition region between the cartilage layer (2) and the bone part (1). After implantation, the bone part (4) is resorbed and is replaced by reparative tissue only after being essentially totally resorbed. In a critical phase of the healing process, a mechanically inferior cyst is located in the place of the implanted bone part (1). In order to prevent the cartilage layer (2) from sinking into the cyst space during this critical phase of the healing process the device has a top part (11) and a bottom part (12), wherein the top part (11) consists essentially of the cartilage layer (2) and the subchondral bone plate (4) and the bottom part (12) corresponds essentially to the bone part (1) and wherein the top part (11) parallel to the subchondral bone plate (4) has a larger diameter than the bottom part (12). After implantation in a suitable opening or bore (20), the cartilage layer (2) and the subchondral bone plate (4) are supported not only on the bone part (1) but also on native bone tissue having a loading capacity not changing during the healing process. Therefore, the implanted cartilage layer cannot sink during the healing process.

An earmuff includes: a casing; a baffle board; and an ear pad including an engagement member, the engagement member being an outwardly extended part of a skin member of the ear pad. The ear pad is fixed at a front of the baffle board with the engagement member constrained to an outer surface of either of the baffle board and the casing or both by a ring-shaped elastic member, and the ear pad fixed and the baffle board define a front air chamber.

The super-abrasive grain fixed type wire saw is equipped with two layers consisting of a brazing material layer (13) and a metal plating layer (16), the aforementioned brazing material layer (13) serving to temporarily fix super-abrasive grains (14), and the aforementioned metal plating layer (16) serving to hold the super-abrasive grains (14). The thickness of the brazing material layer (13) is 10% or less of the average grain diameter of the super-abrasive grains (14). The brazing material layer (13) is formed on the surface of a wire (10) in advance. The super-abrasive grains (14) are dispersed and adhered in a single layer onto the brazing material layer (13). Subsequently, the surface of the brazing material layer (13) is melted and solidified, resulting in a super-abrasive-grains-temporarily-adhered wire (12) such that super-abrasive grains (14) are joined to the adhesion surface of the brazing material layer (13). Thereafter, the super-abrasive-grains-temporarily-adhered wire (12) is metal-plated.

The invention discloses a new unmanned express delivery conveying system and conveying method. Detailed plans are made from goods departure, to transportation paths, and finally to clients, so that the goods are safely, accurately and fast to be delivered to the clients. In addition the invention carries out further optimization on RF labels. The cost is reduced so as to make the system and conveying method of the invention to have stronger market competitiveness. The operation is simple and unattended. The unmanned express delivery conveying system runs 24 hours a day. RFID labels are automatically added to express delivery articles. It is helpful to automatic sorting. A large number of time and manpower are saved. After express items are in place, confirmation information is sent to recipients in real time, and the safety is improved. The unmanned express delivery conveying system and conveying method can be widely used in various communities where express delivery is frequently needed, and are safe and fast, low in cost and convenient in maintenance.

An ice chest has retractable, telescoping legs extending at respective forward and rearward angles from each respective endwall of the ice chest. The ice chest has handles at the upper central portion of the ice chest endwall having push buttons therein which release the telescoping legs from a locked position and which fall to the open position under their own weight and lock in a secure position. The push buttons actuate the locks by a linkage system. The front legs have pads at their lower ends, protecting the ends of the legs, and providing weight to pull the legs into the open, locked position. The rear legs have wheels which also providing weight to pull the legs into the open, locked position. A similar water cooler has retractable legs which have pads on their lower ends pulling the legs downward upon pushing buttons on handles on the sidewalls.

The invention provides concrete integral pouring construction method and device for a road inspection well. The method comprises advance constructions and post constructions, wherein the advance constructions comprise the following steps of: measuring and paying off; excavating a wellhole; pouring a reinforced concrete foundation bottom and building a wellhole protection wall; connecting pipelines; building a well chamber; mounting a tread; backfilling well perimeters; reserving a branch pipe; building a close up section; mounting a cover plate; building the wellhole; covering and protecting; backfilling cement and stone dust to the well perimeters; and constructing a pavement basic layer. The post constructions comprise the following steps of: excavating the pavement basic layer covered on the wellhole to expose the wellhole, dismantling the cover plate and excavating a concrete foundation pit by using the wellhole as a center, wherein the radius of the excavated foundation pit two times larger than or equal to that of the wellhole; laying reinforcing steel bars in the foundation pit and supporting an inner mold in the wellhole; overhanging a well cover on the wellhole by a fixing bracket overhanging device; adjusting the altitude of the well cover; pouring concrete into the foundation pit and keeping the height of the concrete parallel to the bottom of the well cover; building the perimeters of the well cover into a cement slope by concrete; carrying out acceptance checks; paving a bituminous pavement on the perimeters of the well cover and keeping the bituminous pavement parallel to the well cover.

The present invention provides a seat for a vehicle. In the seat for the vehicle having a seat liner, it is possible to thicken the seat liner, to prevent sitting posture from sinkage and to ensure sitting sensation to be well. Provided with at least two linear supporting members (50, 50) on the back face of a liner member (45), the supporting members (50, 50) are arranged on a portion (S) to be pressed primarily on one side facing to a sitter along with sitting on the seat, and the supporting members support the liner member (45). Here, the back face side (D) of the liner member (45) arranged between the support members (50, 50) is provided with a smooth curve shape in the pressing direction due to sitting. In addition, the back face side (D) of the liner member (45) with the smooth curve shape is provided with liner material (47) integrated with the liner member (45) in shaping.

The combination umbrella and folding chair includes an umbrella section with first and second rectilinear poles with axially opposed top and bottom ends respectively. The umbrella section further includes a rotatable knob that allows the user to maintain the second pole in a fixed position and a circular and flexible covering. The assembly further includes a chair section with a flexible and planar seat member, a flexible and planar backrest, and a ring-shaped cup holder. The assembly further includes a mechanism for storing and transporting the umbrella section and the chair section simultaneously.

The invention relates to a prevention method of shallow-buried steeply-inclined coal seam rock burst. The prevention method includes following steps: (A) drilling a hole from ground to pre-splitting blasting a terrane or a rock pillar in floor and roof of a coal seam; (B) performing water-injection softening and pressure-releasing blasting to a mined coal seam; (C) after the coal seam being mined, performing deep-hole blasting to the floor and roof of the coal seam so that a hanging arch of the floor and roof is cut in advance and accumulated bending elasticity energy is released; and (D) filling a goaf of a working face with nonflammable objects after the coal seam being mined. In the prevention method, energy of the floor and roof are released through various measurements so that a strong rock burst disaster caused by fractured terrane or the rock pillar in the floor and roof can be prevented well. The method can effectively reduce an apparent intensity of a dynamic disaster during a mining process of a shallow-buried steeply-inclined coal seam and can reduced property loss and danger of worker life.

The invention discloses a high efficient photo-bioreactor for the culture of photosynthetic bacteria, which consists of a control system, a transparent cylindrical barrel body, an internal light source, an internal modulator tube sleeve brush, a water circulation flow guide device, a heating device and an electronic cooling device. The photo-bioreactor is characterized in that: the system is totally sealed; the internal light source and an external natural light source can be utilized simultaneously, the internal light source is arranged at the centre of the barrel body and protected by a quartziferous modulator tube sleeve, and the outer wall of which is provided with the lift type annular brush; the water circulation flow guide device is positioned at one side of the barrel body and comprises a mini submerged pump and a water circulation guide pipe; the lower end of the water circulation guide pipe is connected with a pump and the 1/3 upper part is provided with a column of water circulation outlets, direction of which is not vertical to the tangent plane of the barrel wall at the closer side, thus ensuring liquid in the reactor is fully stirred under anaerobic conditions; and the heating device and the cooling device are integrated in the water circulation guide pipe. The photo-bioreactor has convenient operation, low cost and safe production and can fulfill high efficient and continuous culture of photosynthetic bacteria.