Supports – Stand – Standard type
Patent
1996-08-27
1999-04-13
Ramirez, Ramon O.
Supports
Stand
Standard type
248161, 403376, 403DIG6, F16M 1300
Patent
active
058935410
ABSTRACT:
A spring loaded or mechanically activated detent for a microphone stand that allows for quick disassembly and re-assembly. The microphone main shaft (102) is terminated at the lower end with a circumferential raceway or slot (44). The base has a coaxial matching cavity that accepts the lower end of the microphone shaft. At a depth to match the raceway, a spring loaded ram, positioned radially, extends into and mates with the raceway to secure the shaft to the base. In another preferred embodiment a spring clip or a stiff clip can be mechanically inserted through a radially extended opening in the base to engage the slot in the lower end of the shaft. There may be other such rams distributed around the circumference of the shaft. In another preferred embodiment the raceway may extend only partially around the circumference of the shaft. The raceway will be of a uniform depth for some arc length ending with a lip and a ramp up to the surface. This arrangement allows the shaft to be twisted overcoming the lip against the spring force and then twisted farther to free the shaft from the base. The invention is arranged to refit existing microphone stands. A plug (12) is threaded into the lower end of the shaft, or microphone pole, and may be secured with a set screw. This plug has a shaft extending from the bottom that has at least one circumferential raceway (20). A tapped receptacle (22) is screwed into the base. The receptacle has a coaxial cavity that accepts and mates with the second shaft. The receptacle has a spring loaded ram (28) or a spring of stiff clip that are radially positioned and retained in the receptacle. The ram or the clips extend into the raceway to secure the main microphone shaft to the base.
REFERENCES:
patent: 2459785 (1949-01-01), Allierton
patent: 3573401 (1971-04-01), Lininger
patent: 4394097 (1983-07-01), Horlacher
patent: 4760984 (1988-08-01), Hennessey
patent: 4943182 (1990-07-01), Hoblingre
patent: 5046693 (1991-09-01), Browne
patent: 5048789 (1991-09-01), Eason et al.
patent: 5497965 (1996-03-01), Mathieu, Jr.
King Anita M.
Paul, Esq. Edwin H.
Ramirez Ramon O.
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