Abstract:
The present invention provides a method of reducing copper oxide to improve its acid resistance comprising the step of reacting cupric oxide with a reducing agent selected from the group consisting of morpholine borane, ethylene diamine borane, ethylene diamine bisborane, t-butylamine borane, piperazine borane, imidazole borane, and methoxyethylamine borane to form cuprous oxide.
Abstract:
Respirator apparatus (10) comprises a monocoque helmet (11), with a visor (14), which is pivotal between an inoperative raised position and an operative lowered position. The helmet (11) is formed of outer shells (17, 18) joined together along the rim and at strategic locations within the domed area of the helmet but are selectively spaced apart in various regions to provide an air chamber (19), at the rear of the helmet (11) and an air chamber (20) at the forward part of the helmet. These chambers (19, 20) are interconnected by three ducts (21, 22, 23). The chamber (19), opens through the outer shell and is fitted with an air filter (25), to receive incoming air. The chamber (20) opens through the inner shell (17) and is fitted with a fan (26) to propel air through the ducts (21, 22, 23) into a breathing zone formed behind the visor (14). The rear portion of the helmet is provided with a chamber (29) which is isolated from the ducts (21, 22, 23) and which accommodates batteries for energising the fan (26). The visor (14) may be arranged to activate the fan automatically when it is moved to its lowered position.
Abstract:
A closed path infrared sensor includes an enclosure, a first energy source within the enclosure, at least a second energy source within the enclosure, at least one detector system within the enclosure and a mirror system external to the enclosure and spaced from the enclosure. The mirror system reflects energy from the first energy source to the at least one detector system via a first analytical path and reflects energy from the second energy source to the at least one detector system via a second analytical path. Each of the first analytical path and the second analytical path are less than two feet in length.
Abstract:
A method of testing a system (10), which has at least one electro- chemical sensor (40) for detecting an analyte gas within a housing (20) of the system (10), and the housing (20) has an inlet (22), in- cludes exhaling in the vicinity of the inlet (22) of the housing (20) of the system (10) and measuring a response to exhaled breath to test one or more transport paths of the system. Measuring the response to exhaled breath may, for example, include measuring the response of a sensor (40) within the housing (20) of the system that is responsive to the presence of exhaled breath. The sensor responsive to the pres- ence of exhaled breath may, for example, include an electrochemi- cally active electrode responsive to a gas within exhaled breath. The electrochemically active electrode may, for example, be responsive to carbon dioxide or to oxygen.
Abstract:
A user navigation guidance system, including: at least one personal inertial navigation module associated with at least one user and configured to generate navigation data; at least one central controller configured to: directly or indirectly receive at least a portion of the navigation data; and generate global scene data in a global reference frame for locating users, features, and/or positions; at least one navigation guidance unit configured to: directly or indirectly receive at least a portion of the global scene data from the at least one central controller; and generate guidance data; and at least one display device configured to generate and provide visual information to the at least one user. A user navigation network system is also disclosed.
Abstract:
A system for use in connection with a protective helmet (200) having at least one accessory connection mechanism (220) includes a visor accessory (100) which includes a frame (120) including at least one rearward extending member (130). The system further includes an adapter (10) including a helmet connector (20) adapted to form a releasable connection with the accessory connection mechanism of the protective helmet and an accessory connector (40 ) adapted to form a releasable connection with the at least one rearward extending member of the visor accessory. The accessory connector is adapted to be stowed on the at least one rearward extending member when the adapter is not in use to connect to the accessory connection mechanism of the protective helmet.
Abstract:
An inertial navigation arrangement, including: a first inertial navigation unit including at least one sensor configured to generate navigation data; at least one subsequent inertial navigation unit including at least one sensor configured to generate navigation data; and at least one controller configured to determine at least one of the following: navigation data, attitude data, velocity data, force data, position data, direction data, bias data, error data, or any combination thereof, based at least partially upon at least one of the following: at least a portion of the navigation data of the first inertial navigation unit, at least a portion of the navigation data of the at least one subsequent navigation unit, or any combination thereof. Initialization, analytical, and navigational methods are also disclosed.
Abstract:
A strap management apparatus for an attachable arrangement including at least one elongate strap having at least one free end. The strap management apparatus includes: a substantially rigid member having a body with a first end and a second end; and at least one substantially elastic member operatively engaging the body of the rigid member and a portion of the at least one strap of the attachable arrangement; wherein the rigid member is configured to be urged away from the portion of the at least one strap, thereby creating a generally rectangular or trapezoidal opening through which the at least one free end of the at least one strap can be inserted. An attachable arrangement is also disclosed.
Abstract:
A shuttle member (10) for a horizontal lifeline system (LS) having at least one elongate line (L) attached between at least two anchorage points. The shuttle member includes: a body having: (i) an upper portion (12) configured for attachment to the line by at least partially surrounding the line; (i) an intermediate portion (14) that together with the upper portion, defines at least one passage slit (16) that is sized such that the elongate line cannot pass therethrough; and (iii) an attachment portion (18) configured for attachment of at least a portion of a lanyard (YA). A shuttle member arrangement and a passing method are also disclosed.
Abstract:
A protective helmet includes: a rigid shell including a generally domed-shaped section, a force attenuating liner within the dome-shaped section shell and operatively connected to the rigid shell; and a visor mount in operative connection with the force attenuating liner, the visor mount be adapted to have a visor mounted thereto.