A safety helmet includes a shell, a flexible frame attached to the shell from inside, and a slide-facilitating member attached to the flexible frame from inside. In virtue of the slide-facilitating member, the shell when receiving incoming impact can slide with respect to a head of a user wearing it, so that the safety helmet can absorb and convert energy of the incoming impact force into other forms of energy, thereby enhancing protection to the user's head.

A safety helmet includes a shell, a flexible frame attached to the shell from inside, and a slide-facilitating member attached to the flexible frame from inside. In virtue of the slide-facilitating member, the shell when receiving incoming impact can slide with respect to a head of a user wearing it, so that the safety helmet can absorb and convert energy of the incoming impact force into other forms of energy, thereby enhancing protection to the user's head.

An adjustable hockey helmet includes a front shell that is longitudinally movable relative to a rear shell to adjust the length of the helmet. One or more substantially rigid straps or similar elements are attached to the front shell and extend to the interior of the rear shell. A cam mechanism or similar device is included on the rear shell for securing the straps directly or indirectly against the interior of the rear shell to prevent longitudinal movement of the front shell relative to the rear shell once the helmet is adjusted to a desired length. Alternatively, the one or more straps may be attached to the rear shell and the cam mechanism may be included on the front shell.

A helmet comprising a helmet body and a chin bar is disclosed. The helmet body comprises an opening and two attachment anchors located opposite each other proximate a leading edge of the opening. Each attachment anchor comprises a pivot socket and a lock support. The chin bar comprises two opposing ends, each releasably coupled to a different attachment anchor. Each end of the chin bar comprises a locking mechanism engaged with a lock support of a different attachment anchor, and a pivot arm releasably and pivotally coupled to the pivot socket of the different attachment anchor. The chin bar is pivotable between a first angle and a second angle with respect to the helmet body, and the pivot arms are releasable from the pivot sockets of the helmet body while the locking mechanisms of the chin bar are disengaged from the lock supports of the helmet body.

An adjustable helmet having first and second shells and a single actuator comprising at least one tooth, the single actuator being moveable between: a first locked position, wherein the at least one tooth retains the first and second shells and the first and second shells define a first hollow space; a released position, wherein the at least one tooth no longer retains the first and second shells such that one of the first and second shells is moveable relative to the other of the first and second shells; and a second locked position, wherein the at least one tooth retains the first and second shells and the first and second shells define a second hollow space, the second hollow space being different than the first hollow space.

An adjustable helmet having first and second shells and a single actuator comprising at least one tooth, the single actuator being moveable between: a first locked position, wherein the at least one tooth retains the first and second shells and the first and second shells define a first hollow space; a released position, wherein the at least one tooth no longer retains the first and second shells such that one of the first and second shells is moveable relative to the other of the first and second shells; and a second locked position, wherein the at least one tooth retains the first and second shells and the first and second shells define a second hollow space, the second hollow space being different than the first hollow space.

A helmet assembly may include a helmet and an integrated chinbar. The chinbar may include an attachment portion and the helmet may include a docking frame. Coupling together of the attachment portion to the docking frame may couple the chinbar to the helmet. The attachment portion may then be secured to docking frame to secure the chinbar to the helmet. In certain embodiments, the attachment portion may be coupled to the docking frame of an interior side of the liner. Thus, the attachment portion may accordingly be disposed on the side of the liner closer to a wearer's face.

A ballistic garment includes a fabric cap and a plurality of flexible ballistic panels. Each of the plurality of flexible ballistic panels has a bottom edge and an acutely pointed head that is spaced from the bottom head. The acutely pointed head of each of the plurality of flexible ballistic panels is positioned adjacent a top portion of the fabric cap. The bottom edge of each of the plurality of flexible ballistic panels positioned adjacent a bottom portion of the fabric cap.

A lift, a head support, and methods for use thereof for use with a surgical frame are provided. The lift and the head support can be used with the surgical frame that is capable of reconfiguration before, during, or after surgery. The surgical frame can include a main beam that can be rotated, raised/lowered, and tilted upwardly/downwardly to afford positioning and repositioning of a patient supported thereon, and the lift and the head support can be used in lifting the patient from a table/gurney and positioning the patient with respect to the main beam.

A lift, a head support, and methods for use thereof for use with a surgical frame are provided. The lift and the head support can be used with the surgical frame that is capable of reconfiguration before, during, or after surgery. The surgical frame can include a main beam that can be rotated, raised/lowered, and tilted upwardly/downwardly to afford positioning and repositioning of a patient supported thereon, and the lift and the head support can be used in lifting the patient from a table/gurney and positioning the patient with respect to the main beam.