Air brake hose coupling member having an extended locking lug

Details Air brake hose coupling member having an extended locking lug Air brake hose coupling member having an extended locking lug

1998-11-24

1999-10-26

Browne, Lynne H.

Pipe joints or couplings

Identical halves

Transverse port

285 87, B61G 506

Patent

active

059714425

ABSTRACT:
A coupling member for detachably connecting together two sections of air brake hose between railroad cars. Each coupling member has a hollow tubular body with one end attached to a section of hose and with an opposite end having an arcuate body portion extending circumferentially about and outwardly of the tubular body, and has an arcuate locking lug with a guide and protection surface followed by a locking surface extending generally axially from the body concentric with and projecting along substantially the entire arcuate body portion. An L-shaped arcuate flange projects outwardly and forwardly from a rear portion of the tubular body and is provided with a lip which engages a similar lip formed on the arcuate locking lug of the other of two coupling members to secure the members in coupled position where the lip projects from only a locking portion of the lug while a guide portion has a smooth surface. An blastomeric gasket is mounted within the bore of the tubular body and forms an airtight seal with a similar gasket mounted on the other coupling member. A finger is pivotally mounted within a radially extending slot formed in an arcuate end body and above the guide portion of the lug portion of the tubular body. A protective flap is secured over the finger to protect the finger from weather related and environmental hazards, while providing a slit to allow for locking and unlocking motion.

REFERENCES:
patent: 1039731 (1912-10-01), Greenlaw
patent: 3858752 (1975-01-01), Marvin, Jr. et al.
patent: 5388864 (1995-02-01), Kozinski
patent: 5911444 (1999-06-01), Butcher et al.

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