초록 ▼

The jar lid loosening device includes a pair of jaws which are arranged to compress upon a lidded jar inserted therebetween. Of the pair of jaws, one jaw is a passive jaw and the other is the active jaw. The passive jaw is fixed substantially stationary and hence it neither twists nor travels in com

The jar lid loosening device includes a pair of jaws which are arranged to compress upon a lidded jar inserted therebetween. Of the pair of jaws, one jaw is a passive jaw and the other is the active jaw. The passive jaw is fixed substantially stationary and hence it neither twists nor travels in compression or retraction. The active jaw, in contradistinction. is given compound motion. More particularly, the active jaw is mounted in a traveling head. The traveling head is arranged to cycle through compression and retraction strokes. The active jaw is carried in the traveling head such that, generally, the active jaw rides passively along with the traveling head through the compression and retraction strokes. If however, a lidded jar is inserted between the jaws, then during a compression stroke the active jaw eventually limits out against the lidded jar. From then on, the lidded jar is subjected to increasing compression between the jaws by virtue of the traveling head. More significantly, the active jaw is coupled to the traveling head such that upon contact with the lidded jar--and increasing compression from the traveling head--the active jaw is driven into a twisting stroke. The relative twisting between the active and passive jaws causes the lid to loosen on the jar. The device-loosened lid may then be handily removed after that.

대표청구항 ▼

[ I claim:] [1.] A jar lid loosening device comprising:a base, a traveling head, and upright carrier means attached to the base for carrying the traveling head for axial cycles of compression and retraction strokes;a source of power to power the traveling head through at least the compression stroke

[ I claim:] [1.] A jar lid loosening device comprising:a base, a traveling head, and upright carrier means attached to the base for carrying the traveling head for axial cycles of compression and retraction strokes;a source of power to power the traveling head through at least the compression stroke;a pair of jaws arranged to compress upon a lidded jar inserted therebetween, wherein one of said jaws is a passive jaw that is fixed substantially stationary relative to the base, the other being an active jaw that is spaced above and linked to the traveling head; and,a converter mechanism linking the active jaw to the traveling head and harnessing the traveling head's compression stroke as a drive input for conversion into a twisting motion in the active jaw suchthat generally, the active jaw rides along inactively with the traveling head as the traveling head powers through a given compression stroke except that, if a lidded jar is inserted between the jaws as set on the passive jaw, then as the active jaw eventually limits out against the lidded jar during the given compression stroke, from that stage on, the active jaw is driven by the converter mechanism to un-twist the jar and lid sufficiently loose until the device-loosened lid may be handily removed after that.