Abstract: A hunting stand for elevating and supporting a hunter during a hunt is provided. The hunting stand features a collapsible and mobile lifting apparatus for raising a platform supporting persons and equipment to a desired height. In particular, the hunting stand can be easily transported by either towing the stand behind a vehicle or by mounting the stand on the roof of a vehicle. The lifting apparatus of the hunting stand is pneumatically or hydraulically powered. Because lifting cylinders are used to extend and collapse the collapsible frames, complex lifting mechanisms such as those requiring pulleys or gears are avoided. Further, the lifting apparatus is designed as a modular feature unit, so that it can be configured with more or fewer collapsible frames, depending on the desired height of the concealment enclosure. The hunting stand also allows the lifting apparatus to keep the concealment enclosure level as the concealment enclosure is raised and lowered.

Abstract: A coupling device is provided in which a substantially cylindrical grease delivery tube is nested within a substantially cylindrical engagement tube. The engagement tube has an aperture in the sidewall near the forward end of the engagement tube, for receiving a zerk fitting. The coupling device is positively connected to the zerk fitting by slipping the aperture, in the forward end of the engagement tube, over the zerk fitting. The neck of the zerk fitting is engaged by an inwardly-turned annular lip in the forward end of the cylindrical engagement tube. The rearward end of the engagement tube has internal threads which engage threads on an adapter that is threaded onto the grease delivery tube. As the adapter is rotated relative to the stationary, zerk fitting and the grease delivery tube, the coupling device is positively locked in position such that the forward end of the grease delivery tube is in a pressure fit, sealed connection to the face and check valve of the zerk fitting.