Jar opener

Details Jar opener Jar opener

2007-03-06

2007-03-06

Wilson, Lee D. (Department: 3723)

Tools

Receptacle closure remover

Wall or surface mounted or supported

C081S003200, C081S003250

Reexamination Certificate

active

11055302

ABSTRACT:
The invention provides a novel, easy to use, hand-operated apparatus for effortlessly loosening the threaded lid of ajar or bottle having a screw-on lid and readily accommodates jars or bottles of different sizes. One form of the invention includes a base having a jar supporting surface, a generally vertically extending guide column connected to the base and a carriage assembly connected to the guide for movement relative to the guide between a first raised position and a second lowered position. Novel features of the invention include the provision of a helical drive screw which drives a jar lid engaging assembly and a novel safety clutch mechanism which prevents the exertion of excessive force on the jar being opened.

REFERENCES:
patent: 1689301 (1928-10-01), Ryckman
patent: 3795158 (1974-03-01), Morita
patent: 4171650 (1979-10-01), Cardinal
patent: 4569281 (1986-02-01), Woods
patent: 4762029 (1988-08-01), Chen
patent: 4919014 (1990-04-01), Chen et al.
patent: 5167172 (1992-12-01), Heebner
patent: 5430923 (1995-07-01), Parent et al.
patent: 5647251 (1997-07-01), Hardman
patent: 5996441 (1999-12-01), Bateman
patent: 6293170 (2001-09-01), Hajianpour

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