Land vehicles – Wheeled – Extensible
Patent
1980-09-23
1982-09-07
Peters, Jr., Joseph F.
Land vehicles
Wheeled
Extensible
248168, 280655, 280 4729, B62B 112
Patent
active
043480349
ABSTRACT:
A two-wheeled collapsible cart comprises a transverse bar having one wheel mounted on a caster fork beneath each opposite end thereof, a pair of symmetrically spaced bars pivotally mounted on the transverse bar providing therewith a collapsible platform and a pair of upstanding barrier bars. The bottom end of a lowermost section of an extendable leg of a camera tripod or unipod from which the non-slip cap has been removed is fitted with an element of a separable connector which engages a companion element mounted on a midportion of the transverse bar. Each spaced pivoted bar terminates in a downturned foot which cooperates with the wheels as a four point ground engaging support for the platform and the mounted upstanding tripod or unipod when the bars are in extended position. The handle of a conventional pan head which adjustably supports the camera on the tripod or unipod also serves as a manipulative handle for the cart when the platform, carrying the camera equipment, is tilted from the four point ground engaging position for transport on the two wheels. A strap is located for encircling the three tripod legs for retention in closed parallel position when the legs are retracted.
REFERENCES:
patent: 1747600 (1930-02-01), Reardon
patent: 2293460 (1942-08-01), Friend
patent: 2500588 (1950-03-01), Vosseler et al.
patent: 2801861 (1957-08-01), Hanson
patent: 3259407 (1966-07-01), Welt
patent: 3826513 (1974-07-01), Wolf
patent: 3863945 (1975-02-01), Dunstan
patent: 4009891 (1977-03-01), Jensen
patent: 4037858 (1977-07-01), Adams
Barnett Erwin M.
Mar Michael
Peters Jr. Joseph F.
Welt/Safe-Lock, Inc.
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