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US 4,083,209 AGranted
Low profile threaded lock cap
AssigneeStant Manufacturing Inc.
InventorPaul H. Sloan, Jr.
Life of this patent
Estimating the term…
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AssigneeStant Manufacturing Inc.
InventorPaul H. Sloan, Jr.
Estimating the term…
A low-profile locking cap for a threaded filler neck includes a closure member for engaging and closing the neck, a shell providing a hand grip and including a key-actuable lock, and a race disposed for rotation between the shell and closure. The race includes axially inwardly opening pockets, and the closure includes flexible pawl fingers for engaging the pockets to provide a driving connection between the closure and race which is positive in the cap removal direction and torque-limited in the cap advancing direction. The race also includes a set of peripherally spaced, radially inwardly projecting teeth, and the shell is molded to provide a pair of flexible drive fingers for engaging the peripherally spaced and radially inwardly projecting teeth to provide a driving connection between the shell and race which is positive in the cap advancing direction and torque-limited in the cap removal direction for free ratcheting of the cap when it is in position on the filler neck and locked. A lock-controlled blocking member is movable by the lock to a cap removal position. The blocking member engages the drive fingers, when in the cap removal position, to prevent the drive fingers from flexing out of engagement with the teeth to render the engagement between the drive fingers and teeth positive in the cap removal direction.
A locking cap for a threaded filler neck comprising in combination, a threaded closure member for engaging and closing the neck, a key actuable lock, a shell providing a hand grip and including means for retaining said lock, an annular race disposed for rotation between the shell and closure, the race including first engaging means and the closure including second engaging means for engaging the first engaging means to provide a driving connection between the closure and race which is positive in the cap removal direction and torque-limited in the cap advancing direction, the race further including third engaging means, the shell including fourth engaging means for engaging the third engaging means to provide a driving connection between the third and fourth engaging means which is positive in the cap advancing direction and torque-limited in the cap removal direction, the cap further including means controlled by the lock for blocking the torque-limited engagement of the third and fourth engaging means to render such engagement positive in the cap removal direction for cap removal.
In a locking cap for a fuel tank threaded filler neck, the cap including a gasket subject to damage due to overtightening of the cap on the neck, a lock for controlling cap removal, a shell providing a hand grip, a threaded closure for engaging the filler neck to close it, and first and second engaging means providing a torque-limited connection between the shell and the closure in a direction to advance the cap into the closure to protect the gasket, the improvement comprising third engaging means positively drivingly connected to the closure in the cap removal direction and fourth engaging means connected to the shell, the third and fourth engaging means positively engaging one another in the cap advancing direction and cooperating to provide a torque-limited connection in the cap removal direction, and lock actuated means for blocking the torque-limited connection between the third and fourth engaging means in the cap removal direction to provide a positive driving connection between the closure and shell in the cap removal direction.
A low profile locking cap for a threaded filler neck comprising a closure member for engaging and closing the neck, a shell providing a hand grip and including a lock, and means providing a positive connection between the shell and closure in the cap removal direction and a torque-limited connection between the shell and closure in the cap advancing direction, the cap further including engaging means and the shell including a shell portion for providing at least one flexible drive finger for engaging the engaging means to provide a positive connection in the cap advancing direction and a torque-limited connection in the cap removal direction, the cap further including a lock-controlled member for blocking flexing of the drive finger to render the engagement between the drive finger and engaging means positive in the cap removal direction.
A low profile locking cap for a threaded filler neck comprising a closure member for engaging and closing the neck, a shell providing a hand grip and including a lock, and a race disposed for rotation between the shell and closure, the race cooperating with the closure member to provide a positive connection in the cap removal direction and a torque-limited connection in the cap advancing direction, the race further including engaging means and the shell including a shell portion for providing at least one flexible drive finger for engaging the engaging means on the race to provide a positive connection in the cap advancing direction and a torque-limited connection in the cap removal direction, the cap further including a lock-controlled member for blocking flexing of the drive finger to render the engagement between the shell and race positive in the cap removal direction.
Dependencies are inferred from the claim text.