Parker-hannifin Corporation

Nagarajan Ramaswamy

Peter J Stroempl

Shadrach Nanney

Allen G Hoube

A fitting assembly includes an indicator assembly that provides a visual indication of torque value to verify when the desired operational torque value is achieved. The fitting assembly includes a nut, and a visual indicator assembly positioned on the nut which has a plurality of visual indicators that provide a visual indication of a torque level being applied. A sleeve is attached to the nut and includes a window through which a portion of the visual indicators is visible based on the torque level being applied. A resilient member couples the sleeve to the nut. As the nut is rotated to apply torque to the nut, the resilient member biases the sleeve in a fixed position and the nut rotates relative to the sleeve, whereby the visual indicator assembly rotates relative to the sleeve to alter which portion of the visual indicator assembly is visible through the window to provide a visual indication of when the operational torque level is being applied. The fitting assembly includes a positive locking feature that interacts with a serrated portion of a nipple fluid connection to positively lock a position of the nut to prevent nut loosening.

Universal torque indicator fitting with positive lock feature

A coupling having a male nipple () and a female coupler (), in which one or both of the coupling members provides a simplified construction with a reduced number of parts for minimizing assembly time and overall costs. The coupling member(s) may include unique interlocking elements (), such as flexible finger elements, that slidably secure the valve sleeve(s) to the valve bodies. The female coupler () may include a valve body () with a unique interface, such as interlocking teeth, for rotatably coupling to a thread sleeve (). The thread sleeve () may have a bendable web for facilitating assembly of a spring for an actuating sleeve. The actuating sleeve may be formed with a hollow annular internal chamber. The male nipple () may include the actuating sleeve instead of the female coupler (). Other features also may be optimized, such as via additive manufacturing techniques, including coupling threads, fluid orifices, biasing members, and seal members.

Quick disconnect coupling

An example hose comprises: a core tube; a reinforcement layer surrounding the core tube and comprising basalt fiber; and a thermal insulation layer surrounding the reinforcement layer and comprising basalt fiber and/or carbon fiber.

High temperature hose

A fire resistant flexible hose construction particularly adapted for aerospace applications includes a tubular core, a reinforcement layer surrounding the exterior surface of the tubular core, a thermal insulation layer surrounding reinforcement layer, and an integral firesleeve layer surrounding the thermal insulation layer. The reinforcement layer includes one or more filaments of one or more fibers, such as aramid fibers. The thermal insulation layer is constructed of one or more filaments of e-glass.

Fire resistant hose assembly

A hose fitting that includes a body having a connection portion configured for connection to an external component, a tubular nipple portion configured for insertion into an end of a hose, and a union portion joining the nipple portion to the connecting portion. The socket also has a crimp portion extending from the union portion of the socket. A swage collar having a tapered inner surface radially inwardly deforms the socket when the swage collar is moved axially over the socket to retain a hose between the socket and the nipple portion of the body.

Hose fitting

A flexible hose for conveying fluids and suitable for high temperature environments, the hose comprising a core tube, a thermal insulating layer surrounding the core tube, a metal layer surrounding the thermal insulating layer, and a vented jacket surrounding the cover layer. The thermal insulating layer may be a fibrous material such as a silica fiber. The metal layer may also be a chemical resistant layer and be thermally stable up to at least about 550&#xb0; F. The vented jacket may be a wire braid having interstices therein and formed from a corrosion resistant material.

High temperature fire sleeve

A flexible hose for conveying fluids and suitable for high temperature environments, in one embodiment the hose assembly comprises a thermal paint coated nipple, a core tube, a thermal insulating layer surrounding the core tube, a cover layer surrounding the thermal insulating layer, and a vented jacket surrounding the cover layer. The thermal insulating layer may be a fibrous material such as a silica fiber. The cover layer may be thermally stable up to 750&#xb0; F. or higher. The vented jacket may be a wire braid having interstices therein and formed from a corrosion resistant material.

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Fort Worth, TX, United States of America

Nagarajan Ramaswamy