169results about How to "Prevent forward movement" patented technology

A coaxial cable connector includes a coupler, a post and a body member. One end of the body member includes a lip that is inserted through the opening in an annular collar of the coupler. In a cable-installed position, the shank of the post is received in the body member to form an annular chamber which is sufficiently narrow to compress the outer conductor and the jacket of a coaxial cable to establish a distal seal. Tightening of the coupler to the terminal compresses the lip between the flange of the post and the annular collar for establishing a proximal seal. Related methods also are provided.

The present invention is directed towards methods and apparatus for handling powder in a 3D printer. The invention includes a means of transporting powder from multiple sources to a powder dispensing apparatus with minimal user intervention, thus reducing contamination of the 3D printer and surrounding area with loose powder, while also providing a means of improving the recycling of powder for re-use.

The present invention is directed towards methods and apparatus for handling powder in a 3D printer. The invention includes a means of transporting powder from multiple sources to a powder dispensing apparatus with minimal user intervention, thus reducing contamination of the 3D printer and surrounding area with loose powder, while also providing a means of improving the recycling of powder for re-use.

A hammerless connector pin assembly is insertable in the aligned connector openings in telescoped ground engaging wear and support members and is releasably lockable therein. The inserted assembly has opposite end portions that block removal of the wear member from the support member. Each of the two end portions has a laterally projecting cam member disposed thereon which is positioned within opposite ones of the two opposed wear member connector openings. As the interior surface of the wear member becomes worn from use and is able to shift further rearwardly along the support member, the cam members may simultaneously be rotationally adjusted to maintain contact with the wear member to prevent forward movement thereof away from its rearward shifted position, and then locked in their rotationally adjusted positions.

A sequentially or serial inflating seat cushion comprising at least three transversely aligned inflatable air bladders connected to a pump and timer. The air bladders are inflated sequentially, from front to back, over a period of approximately eleven seconds and simultaneously deflated to slowly pump blood upward in the legs thereby reducing blood pooling. Connected to the pump is a valve that keeps the air bladders inflated a selective amount of time. The cycle is then repeated continuously. Located adjacent to the back air bladder is a transversely aligned, non-inflating seat section which continuously supports the user's ischial tuberocities to prevent slippage over the seat. An alternate embodiment offers a split seat option with six inflatable bladders.

An explosively actuated tool for driving a fastener into a substrate is mountable to the end of a pole-like handle to permit manipulation and actuation of the tool from a remote position. Actuation of the tool occurs by pushing the forward end of a barrel of the tool against the substrate using the handle and then pushing forwardly the handle which loads and then releases a tiring mechanism of the tool to fire the charge. The tool has a safety lock device for inhibiting loading of the firing mechanism sufficiently to initiate firing unless the tool is orientated upwardly into a vertical or near vertical orientation.

A divider wall for use with a gravity-fed shelf assembly includes an elongate wall portion and a first front leg extending from a first end of the wall portion. The first front leg has a body portion and an engagement protrusion extending from the body portion. The divider wall further includes a rear leg extending from a second end of the wall portion. The first front leg and the rear leg are each adapted to be received into a front slot and a rear slot, respectively, of the shelf assembly. Gravity acts on the divider wall and displaces it within the front and rear slots toward a front end of the shelf assembly such that an undersurface of the shelf assembly adjacent the front slot is in contact with or immediately adjacent to the engagement protrusion to prevent the removal of the first front leg from the front slot.

A method and apparatus for adjusting the contents of a needle-less injector that contains an injectable product are described. A needle-less injector includes an adjustment switch in mechanical contact with the driver of a needle-less injector. A user may displace the adjustment switch to expel air or gas contained in the product section of the needle-less injector prior to administration of a needle-less injection with the same. The adjustment switch may alternatively or additionally be used to expel at least a portion of the injectable product contained in the needle-less injector to reduce the volume of the product to be injected with the needle-less injector.

A firearm safety system includes a magazine block having a pair of opposed parallel shoulders slidably inserting beneath a pair of respective lips at an upper portion of a magazine and positionable in a loading chamber of a firearm to trap the charging handle to make it inoperable. Once the magazine block is positioned within the loading chamber, the firearm cannot operate because the magazine block inhibits ammo rounds from entering the loading chamber and prevents a spring-loaded bolt and firing pin from moving forward for propelling ammo rounds. The firearm safety system may operate in a stealthy mode by attaching the magazine block to a cover plate including a pair of resilient elements for locking to a female receptor notch of the magazine block thereby rendering the magazine block, loading chamber, ejection port and a portion of at least one loaded spare magazine hidden. To ensure a secure locked position, the cover plate cannot be unlocked from the magazine block until the magazine is pulled downwardly away from the loading chamber.

A manually operated trigger sprayer includes a feature that limits the forward pivoting movement of the trigger. By limiting the forward pivoting movement of the trigger, the novel construction of the trigger sprayer prevents the trigger from engaging against the nozzle assembly attached to the sprayer housing of the trigger sprayer and potentially dislodging the nozzle assembly from its attachment to the trigger sprayer housing.

A socket that receives and locks a plug has a cylindrical socket body, a plug-locking element provided in a first through-hole of the socket, a sleeve-operating element provided in a second through-hole of the socket, a sleeve, and a collar. The collar is movable between a first position (FIG. 1) and a second position where the collar allows radially inward displacement of the sleeve-operating element by the plug inserted into the socket. When the plug is inserted into the socket, first, a locking element-pushing portion of the plug pushes out the plug-locking element into a first recess of the sleeve and causes the plug-locking element to displace the sleeve rearward. As the plug is further inserted into the socket in this state, the plug engages and pushes the collar from the first position to the second position.

An automatic welding machine for planar plastic materials, such as sealing sheets, tarpaulins or films, the chassis, in the welding position, in addition to being carried by the driving unit and the pressure device, also being carried by a rigid guide wheel, preferably in the front region of the chassis. With respect to a pressure roller running essentially on the welded overlap region, the guide wheel is arranged in such a way that, during the welding, it runs along the bottom plastic material parallel to the edge of the top plastic material. In addition, the guide wheel has a narrow running surface. During the welding, the guide wheel runs along the edge of the overlapping plastic material and the pressure roller runs essentially on the weld region. Due to this configuration, the automatic welding machine can follow the edge in such a way as to keep to the track, so that guidance by the operator or frequent corrections of the welding direction are not necessary. This leads to an increased weld quality and also to a higher welding speed. There is less interference from the background or due to the welding device swinging in laterally.

A product display displays bottles each suspended by its neck. The apparatus is usually a rack display with several shelf frames that each has a number of sliding bottle support structures with left and right slide structures spaced laterally so as to define a slot of substantially uniform width over at least a lengthwise portion of the slide structures. That width is such that the necks of the bottles extend upwardly through the slot and a widened portion of the bottle's neck rests on both the slide structures and slides forward and rearward. The left and right slide structures in the lengthwise portion are inclined forwardly and downwardly at a downward angle relative to level that is in a range of 3 to 7 degrees. Friction between the bottles and the slide structures is low enough that the bottles, by virtue of their weight, slide forwardly on the slide structures. A lower frame shelf provides a bumper rail that prevents the bottles in the shelf rack above from sliding off the front end of the slide structure. A bridging structure may link adjacent bottle support structures such that bottles are pushed to the rear of one support structure and then proceed slopingly downward on slide tracks in the bridging structure and the next adjacent bottle support structure.

An insert for high-heeled footwear comprises a forefoot insert having a raised portion, and an arch insert having a generally concave base adapted to fit against the heel of the foot to prevent the foot from sliding forward. The forefoot insert and arch insert are placed in high-heeled footwear. The raised portion is adapted to fit under the three middle toes to prevent forward movement of the foot.

A manually operated trigger sprayer includes a feature that limits the forward pivoting movement of the trigger. By limiting the forward pivoting movement of the trigger, the novel construction of the trigger sprayer prevents the trigger from engaging against the nozzle assembly attached to the sprayer housing of the trigger sprayer and potentially dislodging the nozzle assembly from its attachment to the trigger sprayer housing.

A resilient dielectric wiper blade is mounted between electrodes and a workpiece, particularly in an anodizing operation, to wipe bubbles of oxygen from the anodic work surface, to remove a surface layer of excessively heated electrolytic solution and replace with fresh cooler solution, and in the case of flexible strip processing, to stabilize the strip between cathodes. The resilient dielectric wiper blade is preferably used with perforated electrodes to facilitate removal of overheated electrolytic solution and replace with freshly circulated solution.

The invention relates to a stapler with a rotating handle and a use method of the stapler. The rotating handle of the stapler includes a handle shell, a rotating component, a sleeve pipe component, apush rod and a connection piece. A drive mechanism is arranged in the handle shell, the tail end of the connection piece is cooperated with a dial button component through transmission, and the connection piece thus slides in the sleeve pipe component when the dial button component rotates; the drive mechanism is cooperated with a transmission rack through a trigger, and the pushing speed and accuracy of the push rod can be accurately controlled; the rotating component is cooperated with the rack through a transmission gear through transmission, rotary motion is converted into linear motion, control is facilitated, and the stapler is easy to control.

A drive system for a railway hopper car discharge gate includes a door panel operated by a rack and pinion drive. The pinion teeth present a substantially cylindrical profile in a plane orthogonal to the axis of pinion rotation. The cylindrical tooth profile substantially prevents the pinion teeth from skipping or walking against the rack teeth when the spacing between the pinion and the door panel and associated rack fluctuates during operation of the discharge gate. Pinion torque is converted into a vertical force at the ends of travel of the door panel to prevent damage to the drive components. A bearing arrangement supports a drive shaft that is operated to rotate the pinions, and minimizes deflection of the shaft when under rotational load. An inertia brake is provided to engage the door panel and prevent it from opening upon a rapid stop of the hopper car as may occur upon impact with an adjacent railway car.

An electrical connector with a terminal module enclosed within an insulative shield wherein the terminal module includes a plurality of terminals embedded within an insulative main body. The insulative main body forms a rear mounting standing part and a front mating tongue part extending forwardly from the rear mounting standing part. The insulative shield forms a rearward step against a forward shoulder of the base portion so as to prevent further forward movement of the base portion relative to the insulative shield. The insulative main body forms a protrusion and the insulative shield forms a securing hole to receive said protrusion for securing the insulative shield and the terminal module together.