Spade
Patent 4475757 Issued on October 9, 1984. Estimated Expiration Date: 
August 6, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 6, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 951324 984778 1177072 2833585 InventorApplicationNo. 06/414333 filed on 08/06/1982US Classes:294/51, Convertible and combined16/429, Extensible handle294/53.5, Pivoted and adjustable head294/57, Handles294/59, Attachments403/91, Including pivot stud403/93Engaging notch or recess in outer periphery of componentExaminersPrimary: Cherry, Johnny D.Attorney, Agent or FirmInternational ClassesA01B 1/00 (20060101)A01B 1/02 (20060101) Foreign Application Priority Data1980-12-11 ATAbstractSpade with a blade coupled to a preferably hollow handle by means of a bearing pin so as to be pivotable and lockable in various positions, and a handle which at its end facing the blade has a plurality of surfaces extending parallel to the bearing pin, wherein adjacent surfaces include an obtuse angle with one another, and wherein the bearing pin is constructed as an eccentric, and wherein, by rotating the eccentric by means of an actuating member, such as, arm, rotary disk or the like, fixed to the eccentric, the spade blade can be pressed against one of these surfaces. | |
