摘要:
A retaining system for the hood, face seal, and mounting band(s) of facemasks that have a hood and/or a face seal that are sealed and securely mounted to the mask using a band type of clamping method, is provided. The retaining system may include a redundant system that may not allow the mask to be separated from the hood, face seal, and the mounting band(s).
摘要:
An underwater exhaust system and method which includes an exhaust valve having a sealing edge, an exhaust outlet for exiting an exhaust gas, and a projection for directing water flow away from the exhaust valve. The exhaust valve includes a valve head and a valve stem, the valve stem being coupled with the valve head. The system and method prevent a siphoning effect, whereby leakage of water into the exhaust valve is minimized or prevented.
摘要:
A scuba diving bubble diverter adapted for use by a diver wearing a diving mask and air regulator and employing a skirt system for diverting bubbles emanating from the breathing regulator away from the diver's head.
摘要:
A diving helmet bubble diverter comprises a front skirt portion and a rear skirt portion attached to the front skirt portion at one end. The rear skirt portion is configured for mounting onto the diving helmet breathing regulator assembly. The attached front and rear skirt portions form side pockets that divert exhaust air bubbles away from the diver's mask when the rear skirt portion is mounted onto the regulator assembly. The mounted rear skirt portion forms a protective barrier between the exterior wall of the diving helmet and the exhaust whisker of the breathing regulator assembly that prevents air bubbles exiting the whisker from coming into contact with the diving helmet during diving activities.
摘要:
An underwater exhaust system includes an exhaust valve with a valve cover operatively coupled thereto. The valve cover is adapted to create an exhaled air pocket on the water interface side of the valve. The exhaled air pocket allows the valve to operate under reduced water resistance. The valve cover includes at least one water inlet passage and at least one exhaust gas opening.
摘要:
Provided are exemplary embodiments of an underwater breathing exhaust system configured to lower the exhalation, effort and to direct water adjacent an exhaust valve to reduce the likelihood of water entering the system and/or gas free flowing from the system.
摘要:
A viewing lens that is divided into at least three sections such that a wearer can see through a center section with both eyes, and can see through a lateral section only with the eye immediately adjacent to that section.
摘要:
Disclosed is a process for preparing chiral compounds of the formula (I) ##STR1## wherein: X.sup.1 and X.sup.2 are independently F or Cl; and E is --SO.sub.2 R.sup.2, wherein R.sup.2 is C.sub.1 -C.sub.6 alkyl, --C.sub.6 H.sub.4 CH.sub.3 or --CF.sub.3 ; its enantiomer and racemates thereof, useful in the synthesis of tetrahydrofuran azole antifungals. Novel compounds of the formula ##STR2## wherein: X.sup.1 and X.sup.2 are independently F or Cl; B represents --C(O)Q* or --CH.sub.2 OR"; Q* represents a chiral auxiliary group; R" represents a hydroxy protecting group selected from --CH.sub.2 C.sub.6 H.sub.5, or --C(O)R.sup.1, wherein R.sup.1 is C.sub.1 -C.sub.6 alkyl; and A represents Cl, Br, I or triazolyl; are also disclosed.
摘要翻译:公开了制备式(I)的手性化合物(I)的方法,其中:X 1和X 2独立地是F或Cl; 并且E是-SO 2 R 2,其中R 2是C 1 -C 6烷基,-C 6 H 4 CH 3或-CF 3; 其对映体和外消旋体,可用于四氢呋喃唑类抗真菌剂的合成。 新颖的式(III)化合物或其成分:其中:X 1和X 2独立地为F或Cl; B表示-C(O)Q *或-CH 2 OR“; Q *表示手性辅助基团; R“表示选自-CH 2 C 6 H 5或-C(O)R 1的羟基保护基,其中R 1是C 1 -C 6烷基; A表示Cl,Br,I或三唑基; 也被披露。
摘要:
A bar to be used in a storage rack system is provided for the dual storage of computer tape reels and/or computer tape packs. The storage rack system has a series of bars arranged in rows and columns. The storage rack system has flexibility in that the bars are of one uniform design such that computer tape reels and packs can be stored simultaneously in one system.