Locating structure of expandable oval handles of garden shears

Details Locating structure of expandable oval handles of garden shears Locating structure of expandable oval handles of garden shears

2005-01-18

2005-01-18

Payer, Hwei-Siu (Department: 3724)

Cutlery

Cutting tools

Plural cooperating blades

C030S254000

Reexamination Certificate

active

06842983

ABSTRACT:
A pair of gardening shears includes two expandable handles, each handle being formed of an oval outer tube, an oval inner tube, and a grip rotatably fastened to the lower end of the outer tube. The inner tube is slidably fitted at the lower end into the upper end of the outer tube in conjunction with a locating structure including a threaded rod fastened at the lower end to the grip, an upper arresting block, a lower arresting block, and a spring located between the two arresting blocks, which are actuated by the threaded rod to arrest the inner tube at the time when the grip is turned counterclockwise. The inner tube is relieved of the pressures exerting thereon by the two arresting blocks at the time when the grip is tuned clockwise.

REFERENCES:
patent: 3317997 (1967-05-01), Hedstrom et al.
patent: 4922577 (1990-05-01), Unger
patent: 5228202 (1993-07-01), Liao
patent: 5933965 (1999-08-01), Linden et al.
patent: 6272755 (2001-08-01), Mittlesteadt et al.

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