Fastening devices for explosion-proof enclosures
AssigneeCooper Technologies Company
InventorsJoseph Michael Manahan, Yabin Zhao
Life of this patent
Estimating the term…
Abstract
A fastening device for fastening a cover to a body of an explosion-proof enclosure can include a bracket having a back side mechanically coupled to a bottom side at a first angle and to a top side at a second angle, where the top side includes an engagement portion, where the first angle is substantially parallel to an under side of the body flange, and where the second angle is substantially parallel to a top side of the cover flange. The fastening device can also include a cam fixedly coupled to an outer surface of the cover flange and hingedly coupled to the engagement portion. The fastening device can further include a lever fixedly coupled to the cam and having a closed position and an open position.
Claims22
A fastening device for fastening a cover to a body of an explosion-proof enclosure, the fastening device comprising:
- a bracket comprising a back side mechanically coupled to a bottom side at a first angle and to a top side at a second angle, wherein the top side comprises an engagement portion, wherein the first angle is configured to be substantially parallel to an under side of a flange of the explosion-proof enclosure, and wherein the second angle is configured to be substantially parallel to a top side of an opposing flange of the explosion-proof enclosure;
- a cam configured to be fixedly coupled to an outer surface of the opposing flange and hingedly coupled to the engagement portion;
- and
- a lever fixedly coupled to the cam and having a closed position and an open position,
- wherein the bracket is configured to engage the opposing flange and the flange when the lever is in the closed position, and
- wherein the bracket is configured to be disengaged from the opposing flange and the flange when the lever is in the open position.
An enclosure comprising:
- a first enclosure portion comprising a flange;
- a second enclosure portion mechanically coupled to the first enclosure portion and comprising an opposing flange, wherein the opposing flange comprises a flange relief feature disposed along a distal end of the opposing flange and a proximal end of a normal portion of the opposing flange;
- and
- a fastening device mechanically coupled to an outer surface of the first enclosure portion, wherein the fastening device comprises:
- a bracket comprising a back side mechanically coupled to a bottom side at a first angle and to a top side at a second angle, wherein the top side comprises an engagement portion, wherein the first angle is substantially parallel to an under side of the opposing flange, and wherein the second angle is substantially parallel to a top side of the flange;
- a cam fixedly coupled to the outer surface of the flange and hingedly coupled to the engagement portion;
- and
- a lever fixedly coupled to the cam and having a closed position and an open position,
- wherein the bracket engages the flange and the opposing flange when the lever is in the closed position, and
- wherein the bracket is disengaged from the flange and the opposing flange when the lever is in the open position.
An enclosure comprising:
- a first enclosure portion comprising a first flange and at least one mounting support;
- a second enclosure portion mechanically coupled to the first enclosure portion and comprising a second flange;
- and
- at least one fastening device mechanically coupled to the at least one mounting support, wherein the at least one fastening device comprises:
- a bracket comprising a back side mechanically coupled to a bottom side at a first angle and to a top side at a second angle, wherein the top side comprises an engagement portion, wherein the first angle is substantially parallel to an under side of the first flange, and wherein the second angle is substantially parallel to a top side of the second flange;
- a hinged coupling feature hingedly coupled to the at least one mounting support and fixedly coupled to the bracket;
- and
- a lever fixedly coupled to the hinged coupling feature and having a closed position and an open position,
- wherein the bracket engages the first flange and the second flange when the lever is in the closed position, and
- wherein the bracket is disengaged from the first flange and the second flange when the lever is in the open position.
Dependencies are inferred from the claim text.