The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 1990
Filed:
Nov. 25, 1988
Richard Blackmer, Scotia, NY (US);
Other;
Abstract
An improved hoisting apparatus for a sailboard rig of the type which is attached to a sailboard with a universal connection, the improved hoisting apparatus comprising a hoist pole with a bottom end and a top end, an attachment connecting the bottom end of the hoist pole to the mast to provide pivotable and rotational movement of the hoist pole with respect to the mast, a halyard including first and second tension members extending from the top end of the hoist pole, the first tension member connected to the boomhead, the second tension member having a graspable end portion for exerting a force on the hoist pole to hoist the rig, and elastic cord members connected to return the hoisting apparatus to a stowage position when the graspable end portion is released. A third tension member connects the bottom end of the hoist pole to the boomhead so as to transfer the axial force component on the hoist pole caused by hoisting forces to the boomhead, thereby requiring the bottom end attachment to sustain only transverse force components. In one embodiment, the first and second tension members are furnished by a single uphaul passing freely through a guide ring in the top end of the hoist pole.