171results about How to "Prevent forward movement" patented technology

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.

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 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.

The present invention relates to an improved head covering and, more specifically, to a hat having a crown with an enlarged rear opening and wide adjustable device to allow the long accumulated hair of the wearer to be easily threaded through and to be comfortably worn. Wherein the wide adjustable device is wider than traditional bands to provide a better fit and to secure the hat from moving forward on the wearer's head during athletic and non-athletic activities.

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.

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.