Pop-up handle assembly

A pop-up handle assembly comprising:

• mounting panel for attachment to a support,
• a housing supported by said mounting panel,
• a sleeve rotatably supported within said housing and having a first bore therein,
• a shaft drivingly connected to said sleeve,
• a pop-up handle movable between locked and open positions, said handle and said mounting panel having interengageable portions which in locked position prevent rotation of said handle, said handle including a further portion slidably and rotatably disposed within said first bore,
• spring means biasing said handle toward open position,
• means drivingly connecting said sleeve and said further portion of said handle while permitting relative longitudinal movement therebetween,
• a second bore disposed within said housing and being generally parallel to said first bore,
• a depressible lock cylinder slidably and rotatably disposed within said second bore,
• retaining means for retaining the handle in locked position and preventing said spring from urging said handle toward open position, and
• operating means for operating said retaining means upon depression of the lock cylinder for releasing said retaining means and permitting said handle to move to open position under the influence of said spring to cause the handle to pop up into open position.