Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Handle – handle component – or handle adjunct – Luggage-type
Patent
1983-06-15
1985-06-25
Silverberg, Fred
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Handle, handle component, or handle adjunct
Luggage-type
15143B, 15144B, 16DIG39, 16DIG41, 403104, 403290, B25G 104
Patent
active
045244847
ABSTRACT:
First and second tubular pole members are formed of rolled sheet metal material and provided with a lock seam defining a reinforcing rib extending inwardly and longitudinally along each pole member. The second pole member has a smaller external diameter than the internal diameter of the first pole member and is telescopically received within and spaced inwardly of the inwardly extending reinforcing rib of the first pole member. The light-weight construction of the pole members permits easy manipulation of the extension handle and the lock seam reinforcing rib provides sufficient rigidity and strength to prevent lateral bending of the pole members, even when the extension handle is fully extended. A locking device is provided for permitting telescopic adjustment of the length of the extension handle and for maintaining the extension handle in the adjusted position. The locking device includes threadably interconnected first and second tubular members which are molded of plastic for economical reasons. The first tubular member is maintained in one end of the first pole member by a pressed fit and a longitudinal slot straddles the lock seam on the inner surface of the first pole member to prevent rotation of the first tubular member.
REFERENCES:
patent: 1463084 (1923-07-01), Hudson
patent: 2595597 (1952-05-01), Morseth
patent: 3321863 (1967-05-01), Maxam, Jr.
patent: 3380097 (1968-04-01), Pharris
patent: 3489451 (1970-01-01), Guckenberger
patent: 4095826 (1978-06-01), Borradori
patent: 4182364 (1980-01-01), Gilbert et al.
patent: 4250348 (1981-02-01), Kitagawa
patent: 4277197 (1981-07-01), Bingham
patent: 4325157 (1982-04-01), Balint et al.
patent: 4378172 (1983-03-01), Groschupp
Silverberg Fred
Swiss-Tex Incorporated
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