Ball head assembly with anti-escape mechanism for a tripod

Details Ball head assembly with anti-escape mechanism for a tripod Ball head assembly with anti-escape mechanism for a tripod

2007-10-16

2007-10-16

King, Anita M. (Department: 3632)

Supports

Stand

To hold a particular article

C248S179100, C248S288310, C248S483000, C403S090000, C403S122000

Reexamination Certificate

active

11319627

ABSTRACT:
A ball head assembly has a holding base, a clamping collar, a ball, a holder and an anti-escape mechanism. The anti-escape mechanism is mounted on the holding base, is connected to the ball and has a supporting rod, a supporting block, a dragging member and a nut. The supporting rod extends through the bottom of the holding base and has a spherical end rotatably connected to the ball and a threaded end. The supporting block is mounted around the supporting rod and rotatably mates with the bottom of the holding base. The dragging member is mounted around the supporting rod and has a first end abutting against the supporting block and a second end. The nut is screwed onto the threaded end of the supporting rod and abuts against the second end of the dragging member.

REFERENCES:
patent: 1797893 (1931-03-01), Zerk
patent: 1798446 (1931-03-01), Zerk
patent: 2670228 (1954-02-01), Pagliuso
patent: 4708510 (1987-11-01), McConnell et al.
patent: 4740804 (1988-04-01), Shands
patent: 4974802 (1990-12-01), Hendren
patent: 5073417 (1991-12-01), Bowerman

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