Abstract: Disclosed embodiments may relate to systems and methods for monitoring and/or mapping noise data from a plurality of noise monitoring devices. In some embodiments, the plurality of noise monitoring devices may include hearing protection devices configured to detect noise, and typically may communicate such noise data (which may also include location) so that the noise data can be pooled. The pooled noise data from the plurality of noise monitoring devices may then be used to the benefit of one or more of such noise monitoring devices.

Abstract: There is disclosed a connector system (500) comprising a contact pin (400) and a socket (200) for receiving the contact pin. The contact pin comprises a first groove (402) extending around the axis (410) of the contact pin; a coiled spring (404) within the first groove; and a set of teeth (406) extending around the axis of the contact pin. The socket (200) comprises a cup portion (202). The cup portion comprises a set of teeth (206) extending around the axis (210) of the cup portion (202) and for engaging with the teeth (406) of the contact pin; and a first contact surface (518) inside the cup portion and extending around the axis (210) of the cup portion for contacting the coiled spring (404) of the contact pin.

Abstract: There is disclosed a connector system (500) comprising a contact pin (400) and a socket (200) for receiving the contact pin. The contact pin comprises a first groove (402) extending around the axis (410) of the contact pin; a coiled spring (404) within the first groove; and a set of teeth (406) extending around the axis of the contact pin. The socket (200) comprises a cup portion (202). The cup portion comprises a set of teeth (206) extending around the axis (210) of the cup portion (202) and for engaging with the teeth (406) of the contact pin; and a first contact surface (518) inside the cup portion and extending around the axis (210) of the cup portion for contacting the coiled spring (404) of the contact pin.

Abstract: Breathable barriers, comprising a thermoplastic polymer and at least 30% by weight filler, are stretched in one direction in multiple discrete steps wherein the strain rate of each discrete stretching step is less than about 100,000%/minute and wherein the line speed of the last stretching step is in excess of 500 feet per minute. The resulting films may be stretched, as a result of the cumulative discrete stretching operations, from about 2 to 7 times its original length in order to create a breathable barrier having a WVTR in excess of 800 g/m2/day and a hydrohead of at least 60 cm.