Abstract: A liquid-transferring hose of single-carcass configuration, with a rubber tube layer, main pressure-resistant cord layer and cover rubber layer, in this order from the inside, wherein a transponder installed between the rubber tube layer and cover rubber layer transmits and receives waves of specific frequency, which are attenuated by at least -60 dB when passing through liquid to be transferred, and transmits a response signal on receiving the above waves. This design prevents the response signal transmitted by the transponder, when it is covered with leaked liquid, from being detected, to tell occurrence of liquid leakage, allowing liquid leakage to be easily detected during the initial stage.

Abstract: A seismic vibrator system for imparting compressional and shear wave vibrations into the earth has an earth contacting base with a vertical post. A tubular hub is slidably received on the post in a piston/cylinder relationship. Spaced apart horizontal top and bottom plates are secured to the hub. A mass is slidably supported between the plates. Pistons interconnect the hub and the mass. Hydraulic energy is used to reciprocate the mass vertically on the post and horizontally between the plates.

Abstract: A fuel dispensing nozzle is provided with a view glass/fuel flow indicator that are disposed between the main fuel valve and a downstream check valve. The view glass/flow indicator means comprise a pair of horizontally aligned view glasses. A plurality of embodiments illustrate the use of different sub-assemblies in providing the view glass/flow indicator functions, as well as different provisions for obtaining a seal that prevents leakage of fuel at the view glass units.

Abstract: A fluid supply system including a casing having at least one duct extending through it for the passage of fluid and a recess in the casing around the duct or ducts, a cover covering the recess and held against a bearing surface on the casing surrounding the recess, the cover carrying a continuation of the or each duct, and a vent in either the casing or the cover communicating the recess with the environment outside the casing, is provided with a leak tell-tale device for indicating passage of fluid along a path, such as the vent, which, in the event of a leakage of fluid from a duct into the recess, would be followed by the leaked fluid.

Abstract: A user friendly vapor recovery nozzle with special signaling devices to signal and assure the customer of proper delivery of fuel and return flow of hydrocarbon vapors. In the preferred embodiment, the signaling devices include both a fuel flow indicator and a vapor flow indicator. The flow indicators can comprise one or more fuel and vapor driven balls, paddle wheels, propellers, spinners, blades, or vanes. In the preferred form, the vapor recovery nozzle has an inner fuel spout to discharge gasoline into a customer's tank and has an outer spout which cooperates with the inner spout to provide a vapor return passageway to return vapors emitted during fueling to a vapor return hose. The nozzle has a liquid sensing tube in the vapor return passageway to sense when the customer's tank is filled. An automatic shutoff valve cooperates with the liquid sensing tube to shutoff the supply of gasoline when the customer's tank is filled.

Abstract: A vapor recovery process signals to customers the presence of flow of gasoline or other liquid fuel and the return flow of vapors. In the preferred process, a customer's tank is fueled with a vapor recovery nozzle. Vapors emitted during fueling are collected by the nozzle and passed to a vapor return hose and then into a storage tank. A vapor flow indicator on the nozzle signals flow of vapors passing through the nozzle. A separate fuel flow indicator in the nozzle signals fueling, i.e., passing a fuel through the nozzle into the customer's tank.

Abstract: A pressure checker for a fluid pressure source, including a main unit which includes/comprises a hollow portion which can communicate with a fluid pressure source, a cap with a window fitted on the main unit, a spool contained in the hollow portion of the main unit to be reciprocal, said spool being provided with a front end portion with a defined pressure indication surface, a compression coil spring for biasing the spool against the pressure of the fluid pressure source, and a flat light-shielding member positioned in the window of the cap, said flat light-shielding member being provided with a bag made of a material which allows at least partial transmission of light, and a light-absorbing liquid sealed in the bag, wherein the flat light-shielding member transmits light through the window toward the defined pressure indication surface when the spool is moved by the pressure of the fluid pressure source against the biasing force of the compression coil spring, and can also transmit light reflected by the de

Abstract: The present invention provides apparatus for visually indicating the failure of a rupture disc comprised of an elongated hollow body member, a piston disposed in the body member which is moved therein by pressurized fluid pressure exerted thereon, and an elongated indicator pin which is pushed by the piston through an opening in the body when pressurized fluid causes the piston to be moved therein. The body member includes a pressurized fluid exhaust port which is opened by the movement of the piston. Pressurized fluid exhausted through the exhaust port can be vented to prevent abnormal rupture disk operation or it can be utilized to activate an alarm.

Abstract: A containment vessel for potentially harmful fluid including a fluid impermeable primary container having a multi-layer floor including a leak detection system. A concentric secondary fluid impermeable containment vessel surrounds and is spaced from the primary containment vessel and likewise includes a multi-layer floor including a leak detection system.

Abstract: A water activated locus identifying device for attachment to articles apt to be lost in a body of water wherein the water activation serves to operate an electric light thereby making the locus of the article more easily identified.

Abstract: A rotatable reflector for bicycles has a timer which intermittently completely halts rotation of the reflector in sequential positions in response to rotation of the reflector but independently of angular movement of a bicycle wheel. The reflector displays a changing colored reflective surface above a stationary housing of a contrasting color. The timer is liquid actuated and can be accurately calibrated by varying the viscosity of the liquid in the timer. Timed display of contrasting colored portions of the reflector attracts the attention of passing motorists by displaying a signal which appears to blink and change colors. The period during which each contrasting color is displayed is constant regardless of the velocity of the bicycle or relative wind velocity.

Abstract: An improved pneumatic pressure gauge used in inflating a pneumatic tire comprises an adapter means having a gas passage extending from a gas inlet end to a gas outlet end, and a gauge casing connected integrally to the adapter member. The gauge casing includes a gauge chamber, an opening intercommunicating the gas passage and the gauge chamber, a control chamber communicated with the gauge chamber, and a gas release passage opened to atmosphere and communicated with the control chamber. A first valve means is disposed to close the communication between the gas passage and the gauge chamber, and a second pressure responsive valve means is disposed in the control chamber to close the communication between the control chamber and the gas release passage. The valve means are opened when the pressure in the tire or the gas passage exceeds the predetermined pressure.

Abstract: The dropping of pressure for the gas supply in respirators, below a minimum pressure, is reported to the wearer by an acoustic alarm device. To make it possible for the wearer to check whether a warning signal heard comes from his own equipment or not, it is provided that the alarm device has a manipulator which adjusts the sound-generating region.

Abstract: There is disclosed herein an apparatus forming a part of an actuator for providing a constant visual display of the position of a valve. Such apparatus comprises an indicator shaft rotatably disposed in a bore which is oriented perpendicularly of and offset from an actuator stem, a rack means on the actuator stem, a pinion means on the indicator shaft, and an indicating means engraved on the end face of the indicator shaft and visible from the exterior of the actuator. The apparatus is sealingly enclosed and immersed in a fluid medium. Linear motion of the actuator stem generates angular motion of the indicator shaft, causing the indicating means to provide a visual display of valve position.

Abstract: A fluid transport hose having two or more plies comprising a sensing element located between the plies, the sensing element being responsive to the electromagnetic properties of fluid between the plies as a result of a rupture of the inner ply. Alternatively, the sensing element may be adapted to respond to the failure of an inner ply of the hose by presenting an open circuit.

Abstract: A wind direction indicator for sailing vessels, particularly wind surfers or small yawls uses a weather vane pivoted to one end of an outrigger. The outrigger is to be fitted to the mid-height of the mast in the angle of vision of the yachtsman using a clamping device. In the case of a rotatable mast or a sail surrounding the mast, the outrigger can rotate in such a manner as a function of the sail position that the wind direction indicator is always on the windward side of the sail. Bearing aids for maintaining the best cruising course and a compass mounting support can be provided on the outrigger.

Abstract: A bucket position indicator assembly for relieving the operator from constantly maintaining visual contact with the bucket and thereby taking his attention away from other operator functions. The bucket position indicator assembly includes a fluid cylinder, a slidable piston actuator, and an indicator panel that is mounted within the operator's compartment. The actuator includes a rod member which is pivotally attached at one end to the bucket movement linkage for reciprocal movement in response to rotational movement by the bucket. The piston end of the actuator is slidably movable within the fluid cylinder in response to the movement of the bucket during its normal duty cycle. A bore through the rod member permits fluid pressure to escape into an annular chamber formed between sealing disks at the piston end of the actuator. A plurality of orifices along the periphery of the fluid cylinder are connected by conduits to corresponding fluid inputs at the indicator panel.

Abstract: A pressure indicating device for use with medical cannulae having balloon type sealing cuffs such as tracheal tubes. The device would be added to a normal pilot balloon to indicate having exceeded a preset pressure by having a long tubular structure that could be folded inside itself telescopically at low pressure and would pop-out at the preset pressure. When elongated or popped-out, a visual indicator would be exposed until the overpressure was corrected and the tube again tucked into itself.

Abstract: Apparatus and method for indicating and adjusting the angle between the horizontal tangent to the luff of a sail and the direction of the apparent wind.

Abstract: The specification discloses a flange valve having a metal valve body with a longitudinal central passage therethrough and annular flanges extending outwardly from the ends thereof. A truncated ellipsoid valve member is located in the central portion of the passage, the ellipsoid member having major and minor axes and being truncated at the opposite ends of the major axes. An aperture is formed through the ellipsoid member along the major axis. Annular resilient seats are disposed on opposing sides of the valve member to provide sealing between the interior of the valve body and the exterior of the valve member. A pair of removable annular liners are dimensioned to closely fit within opposite ends of the central passage of the valve body and include end portions abutting the resilient seats. The liners are constructed from non-corrosive material to prevent corrosion of the valve body.

Abstract: A system for indicating the presence of water in a sterile package is shown in the illustrative arrangement by the use of a water soluble pattern of ink or dye behind a gas permeable barrier provided to such package to enable sterilization of the package contents. The pattern is printed either on the paper of the barrier or on the sealing coating provided on the barrier paper for attachment to the package shell or it is printed on a separate member deposited in the package.

Abstract: An irrigation signal which has a cylindrical body to receive a cylindrical float, the body having an upper portion and a lower portion, the lower portion being adapted to extend below the bottom of the irrigation ditch in which it is installed in order to form a well in which irrigation water may enter in order to raise said float. A signal connected to said float by a rod is positioned in the top of the body, and upon the raising of said float is pushed from the top of said body and automatically extends to be plainly visible from a distance to signal that irrigation water is present in said ditch. When irrigation is stopped the water will drain from the lower end of the body so that the signalling float will lower and exert a downward pull on the signal. The signal will collapse and be pulled into the top end of the body into nonsignalling position.