Abstract: A theft prevention package container having a package chute positioned in a top surface thereof and a slot positioned on a back surface thereof to receive a lower end of a garage door so as to hold the package container in a position where it is locked in place by the garage door.

Abstract: A flexible coupling includes a first hub, a flexible insert having a plurality of exterior lobes and a plurality of interior lobes, a retainer having an interior which engages the exterior lobes of the flexible insert, and a second hub having an exterior surface contoured to engage the interior lobes of the flexible insert. Protruding teeth are formed on wings of the second hub and positioned to engage sidewalls of openings formed in an inner lip of the retainer in the event that the flexible insert tears or shears, thereby preventing the second hub from going into a potentially damaging free spin mode.

Abstract: A theft prevention package container having a package chute positioned in a top surface thereof and a slot positioned on a back surface thereof to receive a lower end of a garage door so as to hold the package container in a position where it is locked in place by the garage door.

Abstract: A flexible coupling having first and second hubs and a split wrap-around torque transmitting flexible insert. Teeth of the first hub occupy every other receptacle of the flexible insert, and the teeth of the second hub occupy the remaining receptacles of the flexible insert so as to yield a coupling which operates in compression mode wherein the flexible insert can be removed from an installed position by unwrapping it from the hubs without disturbing the position of the hubs.

Abstract: A flexible coupling includes a first hub, a flexible insert having a plurality of exterior lobes and a plurality of interior lobes, a retainer having an interior which engages the exterior lobes of the flexible insert, and a second hub having an exterior surface contoured to engage the interior lobes of the flexible insert. In the event that the flexible insert were to shear or tear during operation, protruding teeth on wings of the second hub will engage sidewalls of openings formed in an inner lip of the retainer, thereby preventing the second hub from going into a potentially damaging free spin mode.

Abstract: A flexible coupling and flexible belt or insert therefor, the belt or insert comprising a plurality of equally spaced circumferentially disposed identically shaped lobes centrally joined together by radial segments of a constant width.

Abstract: A flexible coupling of the type having hubs secured to aligned shafts and connected to one another through the use of a flexible belt surrounding the hubs is improved by forming axial and circumferential grooves on the exterior surface of the belt, each circumferential groove lying transverse to and opening into an axial groove. A cooperating metal retainer ring has respective pins formed on its interior surface for insertion into the axial grooves. After a test for gross misalignment has been satisfied, the respective pins are rotated into the circumferential grooves, thereby fixing the retainer ring in position with respect to the flexible belt and coupling.

Abstract: A flexible coupling having hubs secured to aligned shafts and connected to one another through the use of a flexible belt surrounding the hubs is improved by forming axial and circumferential grooves on the exterior surface of the belt, each circumferential groove lying transverse to and opening into an axial groove. A cooperating metal retainer band has respective pins formed on its interior surface for insertion into the axial grooves and rotation into the circumferential grooves, thereby fixing the retainer band in position with respect to the flexible belt and coupling. Retention of the retainer band pin within the circumferential groove is insured by displacing the center line of the axial groove from a plane perpendicularly bisecting an underlying projection of the flexible belt and by lengthening the circumferential groove.

Abstract: A flexible coupling of the type having hubs secured to aligned shafts and connected to one another through the use of a flexible belt surrounding the hubs is improved by forming axial and circumferential grooves on the exterior surface of the belt, each circumferential groove lying transverse to and opening into an axial groove. A cooperating metal retainer ring has respective pins formed on its interior surface for insertion into the axial grooves. After a test for gross misalignment has been satisfied, the respective pins are rotated into the circumferential grooves, thereby fixing the retainer ring in position with respect to the flexible belt and coupling. The belt further has nine wedge-shaped projections, each conformably fitting with a receptacle in a cooperating hub, each receptacle rotatable into a position where it lies vertically above the shaft on which the hub is mounted, each receptacle further providing inside diameter support to the belt through its mating relation ship therewith.

Abstract: A flexible coupling of the type having hubs secured to aligned shafts and connected to one another through the use of a flexible belt surrounding the hubs is improved by forming axial and circumferential grooves on the exterior surface of the belt, each circumferential groove lying transverse to and opening into an axial groove. A cooperating metal retainer ring has respective pins formed on its interior surface for insertion into the axial grooves. After a test for gross misalignment has been satisfied, the respective pins are rotated into the circumferential grooves, thereby fixing the retainer ring in position with respect to the flexible belt and coupling. The belt further has nine wedge-shaped projections, each conformably fitting with a receptacle in a cooperating hub, each receptacle rotatable into a position where it lies vertically above the shaft on which the hub is mounted, each receptacle further providing inside diameter support to the belt through its mating relationship therewith.

Abstract: A flexible coupling of the type having hubs secured to aligned shafts and connected to one another through the use of a flexible belt surrounding the hubs is improved by forming axial and circumferential grooves on the exterior surface of the belt, each circumferential groove lying transverse to and opening into an axial groove. A cooperating metal retainer ring has respective pins formed on its interior surface for insertion into the axial grooves. After a test for gross misalignment has been satisfied, the respective pins are rotated into the circumferential grooves, thereby fixing the retainer ring in position with respect to the flexible belt and coupling.

Abstract: A flexible coupling for joining two shafts having teeth of a first hub overlapping with teeth of a second hub, the teeth being engaged by projections of a split flexible belt wrapped around the coupling and held in place by a retainer ring.

Abstract: A flexible coupling of the type having hubs secured to aligned shafts and connected to one another through the use of a belt surrounding the hubs and engaging teeth on the hubs is improved by forming projections on the interior of the belt which engage complementary receptacles on the hub teeth to prevent the hubs from moving apart in the direction transverse to their rotation.