Enclosure handle

A latch handle apparatus, comprising:

• a base portion defining a bore extending therethrough and grip portion extending substantially transverse to the bore;
• an integral lock defeater device, including:
• a plunger member sliding axially in the bore and rotating in the bore between a locked position and an unlocked position;
• compressive biasing means engaging the plunger member and urging the plunger member toward the locked position;
• torsional biasing means for biasing the plunger member to rotate toward a locked position;
• a cylindrical camming member defining an axially extending camming surface including a raised portion and a depressed portion engaging a complementary camming surface formed on a ridge in the bore, wherein the camming member includes sidewalls forming an inner cavity, and wherein the camming member slides over the plunger member so that the plunger member extends into the cavity;
• mounting means defining a recess receiving the plunger in the locked position.

A lock defeater device for mounting through a bore in a housing, comprising:

• a plunger member sliding axially between a locked position and a retracted position;
• a retainer member for retaining the defeater device in the bore and coupled to the plunger member;
• biasing means for biasing the plunger member toward a locked position;
• and,
• an annular cammed member having an axially extending cammed surface and defining a passage receiving the plunger member, and wherein the bore defines a shoulder having an axially extending annular camming surface extending around the bore.

A latch apparatus comprising:

• a housing including a substantially cylindrical head portion and a handle portion extending substantially radially from the head portion;
• wherein the head portion defines a bore extending therethrough including a first portion, a second portion narrower than the first portion and defining a shoulder extending radially to the first portion forming a cam surface, a third portion proximate the second portion and a fourth portion proximate the third portion and wider than the third portion;
• a retainer rotationally mounting in the third and fourth portions rotating between a locked position and an unlocked position;
• the retainer including an end portion;
• a lock defeater device including:
• a plunger member sliding in the second portion and engaging the end portion of the retainer;
• wherein the plunger member slides between a locked position and an unlocked position;
• and wherein the plunger member defines an inner chamber;
• a compressive spring extending into the inner chamber intermediate the retainer and the plunger member;
• a cylindrical camming member slidably mounted in the first portion;
• the camming member including a camming surface engaging the cam surface of the shoulder, wherein rotation of the camming member slides the camming member axially along and at least partially out of the bore;
• and wherein the camming member defines an inner cavity receiving the plunger member;
• a helical torsion spring in the inner cavity of the camming member and extending around the plunger member;
• and,
• a base receiving the head portion and including a recess formed therein receiving the camming member in the locked position.