54results about How to "Solve the lack of tightness" patented technology

In a belt retractor (10) having a belt tensioner (16) and a force-limiting device, the belt tensioner (16) includes a pivoted pinion gear (24) associated with a belt reel (14), a drive unit (18) and an oblong force-transmitting element (22) movable by the drive unit (18) supported at least partly in a tubular portion (21) and adapted to be engaged in the pinion gear (24) so as to rotate the pinion gear (24) in a tensioning direction (A). The force-transmitting element (22) includes a bending portion (30) which is provided at the rear end of the force-transmitting element (22) viewed in the tensioning direction and which is designed to be pressure-resistant in the longitudinal direction (L) of the force-transmitting element (22) but to be flexible in a direction perpendicular to the longitudinal direction (L).

The collecting bag has a bag member formed by a first and a second film blank, and a discharge portion that is foldable and unfoldable to bring the discharge portion from an open unfolded condition to a closed folded condition and vice versa. A first plate member is positioned on the first film blank and a second plate member is positioned on an extension of the second film blank Each plate member is formed from a relatively stiff material, and the distance between the distal edge of the first plate member and the proximal edge of the second plate member is smaller than the thickness of the first plate member. When folding the discharge portion, the distal edge of the first plate member acts as a pivot, and a stretching effect is created on the second film blank to effectively seal the discharge opening without deformation of the plate members.

A closure assembly includes torque limit capabilities facilitating the attachment thereof to a medical connector with sufficient tightness to establish a flow stopping or sealing relation with the medical connector. A housing includes a stop member fixed on the interior thereof and rotatable there with into interruptive engagement with a movement restrictor connected to and movable with a closure cap which includes a flow restrictor. Application of a tightening force to the housing will cause rotation of the stop member into interruptive engagement with the movement restrictor and connected flow restrictor causing forced rotation of the flow restrictor onto attachment with the medical connector, while establishing a predetermined tightness. Over-tightening is prevented by disengagement of the stop member from will the movement restrictor or disconnection of the flow restrictor from the corresponding movement restrictor once the predetermined tightness has been established and upon a continuing tightening force being applied to the housing.

A method for testing tubular objects, in particular paper sleeves in a cylindrical pressure chamber, comprises the following steps: receiving the tubular object to be tested in a pressure chamber, which is comprised of a hollow cylinder with a pressure shell, wherein the pressure shell is supported at the hollow cylinder and wherein an expansion of the pressure shell in radial outward direction and in axial direction is limited; loading the pressure shell with a pressure means, so that the inner surface of the pressure shell is evenly applied to the surface of the object; and providing a pressure increase until the terminal pressure to be tested is reached, or a damage of the tubular object occurs. The invention also relates to an apparatus for testing tubular objects, configured to use the method.

A segment for a rehabilitating pipe is coupled to another segment in the circumferential and longitudinal directions of a rehabilitating pipe to rehabilitate an existing pipe. The segment has on one coupling surface a protruding part and a recessed part continuous with the protruding part and on another coupling surface a recessed part and a protruding part whose shapes respectively conform to the protruding part and the recessed part of one coupling surface. The protruding part and the recessed part of one coupling surface of one segment is brought into tight surface contact with the recessed part and protruding part of another coupling surface of another segment and interfitted thereto when one and another segments are mutually coupled in the circumferential and longitudinal directions of the rehabilitating pipe.

A photoelectric smoke sensor includes a housing having a circuit accommodation chamber, an inflow chamber provided in the housing, a light emitting portion provided in the inflow chamber, and a light receiving portion provided in the inflow chamber. The light emitting portion includes a first light and a first support portion surrounding the first light guide. The light receiving portion includes a second light guide and guiding the light to the light receiving element and a second support portion surrounding the second light guide. The first support portion and the second support portion are configured to prevent escape of a flame from the circuit accommodation chamber to the inflow chamber.

A layer heat exchanger for high temperatures is provided that includes a layer block having layer plates and cover plates and a housing that accommodates the layer block. The housing has a high heat resistance, combined with a high stiffness, and the layer block has a core that is soft and tough relative to the housing.

A leakage current protection plug includes a plug housing, a power supply cord, two copper legs embedded within the plug housing, a leakage current protection device composed of two main moving contacts. A reset button presses the moving contacts to contact the two copper legs, a winding assemble, an iron core, a circuit board assemble, an ZCT. Ends of moving contacts are arranged with contacts that conduct individually with the two copper legs upon coming into contact; the power supply cord, through the ZCT, is connected with the moving contacts; the output of the ZCT is connected with the input of the amplification circuit on the circuit board, while the output of the amplification circuit is connected with the winding assemble.

The invention relates to a valve comprising a housing and a closing member arranged in the housing, from which member a shaft protrudes via which the closing member is rotatable in the housing. In order to provide a working and easy-to-use valve, the closing member comprises a sector closing the opening, a flexible sector having a thinner wall than the closing sector, a guiding sector having the same radius (R) as the inner surface of the housing wall, and an open sector.

An electrochemical cell, including: a first current collector including a first collecting section in contact with a first electrode and including a first connecting section; a second current collector overlapping with the first current collector and including a second collecting section in contact with a second electrode and including a second connecting section; wherein the first and second current collectors are mutually connected via their first and second connecting sections and a distance between the first and second connecting sections is equal to or smaller than 50% of the distance between the first and the second collecting sections.

A spark plug for an internal combustion engine includes a ground electrode, a center electrode, an insulator, a housing, and a folded packing which is situated on an outer circumference of the housing. The folded packing has: a hollow profile in cross section; a free leg directed outwards; and a support region. The folded packing lies on a contact surface in a support region, and the free leg is situated at an angle to the support region. The folded packing is pressed together during the mounting of the spark plug, and the free leg of the folded packing is designed to bend over in the direction of the support surface during the mounting to provide a diameter enlargement of the folded packing.

A molded plastic article has an injected or foamed molded section (12) with at least one insert part (24) with a part (16A-16D) which emerges from the molded section (12). The insert part (24) penetrates a deformable molded body (34) which forms a sealing element for the mold cavity when the injected or foamed molded section (12) is produced in the mold cavity of a molding tool. A process for producing the molded plastic article involves locating the molded body (34, 46) together with the insert part in the region of an edge of the mold cavity, closing the tool unit so that the molded body undergoes deformation and the mold cavity in the region of the emergence of the insert part from the mold cavity is sealed by the molded body.

A firearm sling apparatus has a firearm connection section for attachment to a forward portion of a firearm and having a body connection section for attachment to the body of a firearm user. A releasable latching connector establishes releasable connection of the firearm connection section and the body connection section and provides for selective adjustment of strap members of the sling, permitting a user to adjust the body connection of the sling to fit the user's body anatomy and to accommodate the aiming and shooting position of the firearm. Adjustment of the sling apparatus is preferably accomplished with the user in a bipod stabilized position.

The invention relates to a seedling loading plate of a transplanter. The seedling loading plate is composed of a plate body and seedling conveying belts, wherein the plate body is formed by connecting guide plates and seedling conveying plates; the guide plates are arranged at the upper ends of the seedling conveying plates; two sides of the plate body are provided with edge baffles which are respectively upper baffles corresponding to the guide plates and lower baffles corresponding to the seedling conveying plates; the upper baffles located at two sides are parallel to each other; and the lower baffles located at two sides are of an inverted trapezoidal structure with a large upper side distance and a small lower side distance. By using the seedling loading plate of the transplanter, the compact degree of a flat seedling in the using process can be improved, and the phenomena of seedling dislocation and seedling leakage can be avoided.

A crane system having a gas turbine that has a manhole on the outer housing thereof, the manhole being designed to open up a maintenance access to hot gas parts of the gas turbine in the open state of the manhole, which is provided with a fastening section; the crane system further has a hoisting mechanism that includes a mating fastening section which is connected to the fastening section of the manhole in such a way that the hoisting mechanism introduces weights that same has to lift into the outer housing of the gas turbine.

The invention discloses a combined plastic pipe welding support frame, the structure of which includes a connection and fastening device, a support plate, a welding plate, and a panel. The radius of the circle is 0.4cm. A combined plastic pipe welding support frame of the present invention is provided with a connection and fastening device. The connecting support column and the connection hole are inserted into the inside of the pipe through the connecting plate, and the regulator adjusts the fastening performance of the splint, so that The external equipment can be welded, which improves the fastening connection performance of the equipment, and solves the problem of insufficient fastening of the pipe after welding, and the problem that the equipment is easily shaken and broken.

Disclosed herein is a bulkhead sealing assembly including, a sealing-function group having a base plate, an outer sealing portion, and at least one inner sealing portion. The bulkhead sealing assembly further includes an elastic tolerance compensation member and a receiving memberformed as a flange surface of a housing of a vehicle air-conditioning system. The bulkhead sealing assembly has a tolerance compensation function for at least one connector through-portion which penetrates a vehicle bulkhead.

According to the public place water quality sampler, a bottle sleeve and a sealing film are arranged outside an adopted sampling bottle, the joint of the bottle sleeve and an annular groove of a communication module is separated during multiple times of sampling, it is guaranteed that a sampling bottle opening is located in the communication module during sampling, and the situation that a water sample is directly irradiated by sunlight is also avoided; a disposable sealing film is arranged at a bottle opening, and an air suction pipe and a stabilizer spray pipe are communicated with a sampling bottle in a puncturing manner, so that insufficient air tightness in the bottle during air pumping of an air suction pump is prevented, and the sampling bottle is prevented from being polluted by bacteria in an external environment during sampling, and a telescopic sampling rod and a servo motor positioned at the end part of the telescopic sampling rod are also adopted; the telescopic sampling rod and the servo motor are controlled to zoom through a roller switch, and the extension lengths of the the telescopic sampling rod and the servo motor and the lowering depth of the lifting line can be observed through a display screen, so that the accuracy of multi-point sampling is ensured, and the influence of an operation error of a worker on a sampling result is reduced; the problems that workers are difficult to strictly sample according to specifications in different environments and the health is easily harmed are solved.

The present invention relates to a formwork device for a battery formwork for the production of structural elements, in particular prefabricated concrete elements, which comprises at least two partition walls and the formwork device comprises two formwork panels that are connected to one another, preferably in an articulated manner, in order to be transferred from an unfolded state to a folded state, where each formwork panel comprises a formwork front side for attaching formwork elements and a formwork rear side, and the formwork rear sides of the two formwork panels face each other in the folded state and the formwork device is intended to be positioned in the folded state between the partition wall. The present invention further relates to an arrangement consisting of a battery formwork and at least one formwork device according to the invention, where the formwork device is arranged suspended in the battery formwork.