Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Reexamination Certificate
1999-08-11
2001-10-09
Kincaid, Kristine (Department: 2831)
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
C248S074100, C285S092000, C439S466000
Reexamination Certificate
active
06300569
ABSTRACT:
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a liquid-tight fitting, and, more particularly, to a liquid-tight fitting equipped with a 90° sealing nut, locking means and a cup-shaped flange.
BACKGROUND ART
In the past, various devices have been developed for feeding a wire, cable, tube or the like to an electrical and/or mechanical device at an angle such as 90° (see, for instance, European Patent No. 0 283 575 B1, European Patent No. 0 151 273 B1 and the HSK strain relief snap elbow marketed by Hummel GmbH). Some of these devices are equipped with bases and covers pivotally connected to the bases for orienting associated cables at an angle, as well as clamping mechanisms for providing sealing and/or strain relief. However, it is believed that if the covers of such devices are accidentally opened during use, the sealing and/or strain relief functions provided by the clamping mechanisms are compromised. Accordingly, there is a need for a device which is adapted to maintain the integrity of the sealing and/or strain relief functions provided thereby, even if its cover is accidentally or otherwise opened during use.
DISCLOSURE OF THE INVENTION
The present invention overcomes the disadvantages and shortcomings of the prior art discussed above by providing a new and improved sealing nut adapted for use in connection with a liquid-tight connector which is mountable on a housing of an electrical or mechanical device and which includes a grasping portion adjacent an end thereof projecting outwardly from the housing. More particularly, the sealing nut includes a base having a passageway extending therethrough along a longitudinal axis of the base and being sized and shaped so as to removably receive the grasping portion of the connector. The sealing nut also includes a cover pivotally connected to the base such that the cover is movable between an open position, in which the cover exposes the passageway of the base to an extent sufficient to allow a cable to be fed through the sealing nut in a substantially straight line running generally parallel to the longitudinal axis of the base, and a closed position, in which the cover overlies the passageway in the base such that the cover loosely guides the cable to form a bend therein. A retaining mechanism is provided for retaining the cover in its closed position. A cooperating mechanism is also provided for cooperating with the grasping portion of the connector so as to grasp an adjacent portion of the cable in a liquid-tight and strain-relieving manner. The cooperating mechanism is located within the base, whereby the liquid-tight and strain-relieving functions performed thereby are not compromised during use even if the cover is inadvertently moved from its closed position.
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Heyco Products, Inc.
Kincaid Kristine
Patel Dhiru R
Selitto & Associates
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