Reduced opening ventilator
AssigneeRyadon, Inc.
InventorGregg A. Teskey
Life of this patent
Estimating the term…
Abstract
The present invention provides a two-way vent for a vehicle that opens in a front and rear direction and includes a preferably symmetric cam having an apex on its centerline, and first and second convex sides each terminating respectively in a recess at the base of the cam. The degree of opening of the vent is determined by the displacement of a follower rod with respect to the apex of the cam. From its originally closed position with the follower positioned at the apex, the vent can be opened either forward or backward by selectively moving a handle that actuates the follower along the curved paths defined by the convex sides. The cam preferably includes a lateral cusp at the end of each curved path, the cusp defining a transition from the curved path to the recess.
Claims22
A vent of the type comprising a base plate, a handle connected to a pivoting lid, and a cam and follower assembly, the improvement comprising:
- a cam comprising an apex having an indenture thereon, a pair of convex side surfaces defining a follower path,
- a pair of recesses defining a follower stop, a juncture of the convex side surfaces with the recesses forming a pair of lateral, and
- wherein the cam is mounted to a spacer.
A vent of the type comprising a base plate, a handle connected to a pivoting lid, and a cam and follower assembly, the improvement comprising:
- a cam comprising an apex having an indenture thereon, a convex side surface defining a follower path, a recess defining a follower stop, and
- a spacer establishing the end of the follower path.
A vent of the type comprising a base plate, a handle connected to a lid, and a cam and follower assembly, the improvement comprising:
- a cam comprising an apex having an indenture thereon, a pair of circularly convex side surfaces defining a follower path, and
- a pair of circular recesses at an end of the circularly convex side surfaces defining a follower stop, a juncture of the circularly convex side surfaces with the recesses forming a first pair of lateral cusps, the cam further comprising a pair of curved segments adjacent the recesses and a spacer adjacent the curved segments, the juncture of the recesses with the curved segments forming a second pair of lateral cusps, the distance between the first pair of lateral cusps and the distance between the second pair of lateral cusps being approximately equal, and
- the height of the spacer being no less than a length of the curved segments.
Dependencies are inferred from the claim text.