Surface/cremone bolt
AssigneeChautauqua Hardware Company
InventorDale L. Flowerday
Life of this patent
Estimating the term…
Abstract
A self-centering surface bolt comprising two or more keepers, a surface bolt and two or more guides. The guides further comprise a base, a stem and a cap. The base of the guide is received within a recess in the keepers and the stem and cap of the guides are received within a channel in the surface bolt. The guides are symmetrical with respect to the channel of the surface bolt. Thus, regardless of the position of the guide with respect to the keepers or the surface bolt, the guides will have the same apparent cross section and will center the surface bolt within the keepers without resulting in the surface bolt binding with respect to the guides.
Claims3
A bolt assembly comprising:
- keepers for guiding an elongated rod and which are adapted to be mounted to a door;
- the elongated rod having a longitudinal axis and a hollow elongated channel on the underside thereof with an elongated opening therein;
- guides adapted to be mounted to the keepers at least when the keepers are mounted to the door, the guides having a protrusion within the hollow elongated channel of the elongated rod;
- the improvement comprising:
- the guides comprise a circular base and the keepers have a circular recess on their underside for receiving the circular base of the guides;
- and
- the guide protrusion having a stem portion with a substantially circular shape so that the cross sectional area of the stem portion will always be substantially the same regardless of the orientation of the guide about an axis perpendicular to the longitudinal axis of the elongated rod to minimize binding between the guides and the elongated rod.
Dependencies are inferred from the claim text.