Patent US5893541A successfully refreshed from Google Patents.
US5893541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microphone stand providing quick assembly and disassembly
Assignee: Individual
•
Filing: 1996-08-27
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Granted: 1999-04-13
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Expires: 2016-08-27
Abstract
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.
Inventors
- 👤 Donald Michaelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:50
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/041; F16M11/20; F16M11/22; F16M2200/00; F16M2200/08; Y; Y10; Y10S; Y10S403/00; Y10S403/06; Y10T; Y10T403/00; Y10T403/70; Y10T403/7075
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
145 words
A microphone stand for providing quick assembly and disassembly, comprising: a first shaft with a first end for supporting a microphone and a second end, a raceway constructed circumferentially around said second end of said first shaft, a base for supporting the entire microphone stand, said base with a cavity with sides extending into said base, said cavity coaxial with and arranged to accept said second end, an aperture extending from said side of said cavity into said base, said aperture positioned at a depth in said base to be adjacent to said raceway when said second end is inserted into said cavity, a ram slideably positioned in said aperture, said ram having a head that extends through said side of said cavity and mates with said raceway, said ram having a tail, means for resiliently driving said ram through said aperture into said raceway.
Claim 2
Dependent Claim
145 words
A microphone stand for providing quick assembly and disassembly, comprising: a first shaft with a first end for supporting a microphone and a second end, a raceway constructed circumferentially around said second end of said first shaft, a base for supporting the entire microphone stand, said base with a cavity with sides extending into said base, said cavity coaxial with and arranged to accept said second end, an aperture extending from said side of said cavity into said base, said aperture positioned at a depth in said base to be adjacent to said raceway when said second end is inserted into said cavity, a ram slideably positioned in said aperture, said ram having a head that extends through said side of said cavity and mates with said raceway, said ram having a tail, means for resiliently driving said ram through said aperture into said raceway.
Claim 3
Dependent Claim
42 words
The stand as defined in claim 1 further comprising a second aperture said second aperture positioned around said cavity from said first aperture, a second ram and second means for resiliently driving said second ram through said second aperture into said raceway.
Claim 4
Dependent Claim
24 words
The stand as defined in claim 2 wherein said second aperture and ram are placed about 135° around the cavity from the first aperture.
Claim 5
Dependent Claim
39 words
The stand as defined in claim 1 further comprising a plurality of apertures each aperture with a ram and means for resiliently driving said ram through said aperture into said raceway, said plurality of apertures distributed around said cavity.
Claim 6
Dependent Claim
106 words
The stand as defined in claim 1 wherein said raceway is constructed with a first part having a uniform depth that extends less than 360 degrees around the circumference of the first shaft, and said first shaft having an outer surface, and wherein the raceway is arranged with a second part formed as a first lip disposed across said raceway and then a first ascending ramp to the outer surface of the first shaft such that there is a first rotational location where the ram is substantially pushed back into the aperture, said first rotational location arranged to facilitate removal of the shaft from said base.
Claim 7
Dependent Claim
112 words
The stand as defined in claim 5 further comprising at least a second raceway and a second ram, wherein said second raceway is constructed with a first part having a uniform depth that extends less than 360 degrees around the circumference of the first shaft, and wherein the second raceway is arranged with a second part formed as a second lip disposed across said second raceway and then a second ascending ramp to the outer surface of the first shaft such that there is a second rotational location where the second ram is substantially pushed back into the aperture, said rotational location arranged to facilitate removal of the shaft from said base.
Claim 8
Independent Claim
216 words
An apparatus, for converting a microphone stand having a tapped first shaft and a base with a mating tapped first hole into a quick disconnect microphone stand, comprising: a plug including a body with a tapped or threaded second hole, the tapped second hole constructed to accept the tapped first shaft, said plug having a second shaft arranged opposite the tapped second hole, said second shaft extending from the plug coaxially with said tapped second hole, a first keyway extending longitudinally along said second shaft, a raceway constructed circumferentially around an outer surface of the second shaft, a receptacle with a bore and with a third shaft adapted to matingly fit the tapped first hole in the base, the bore with a second keyway that mates with the first keyway said bore extending coaxially with the tapped second shaft an aperture extending from the side of the bore the aperture positioned at a depth in the bore to be adjacent to the raceway when the second shaft is inserted into the bore, a ram slideably positioned in said aperture, said ram having a head that extends through said side of said bore and mates with said raceway, said ram having a tail, and means for resiliently driving said ram through said aperture and into said raceway.
Claim 9
Independent Claim
216 words
An apparatus, for converting a microphone stand having a tapped first shaft and a base with a mating tapped first hole into a quick disconnect microphone stand, comprising: a plug including a body with a tapped or threaded second hole, the tapped second hole constructed to accept the tapped first shaft, said plug having a second shaft arranged opposite the tapped second hole, said second shaft extending from the plug coaxially with said tapped second hole, a first keyway extending longitudinally along said second shaft, a raceway constructed circumferentially around an outer surface of the second shaft, a receptacle with a bore and with a third shaft adapted to matingly fit the tapped first hole in the base, the bore with a second keyway that mates with the first keyway said bore extending coaxially with the tapped second shaft an aperture extending from the side of the bore the aperture positioned at a depth in the bore to be adjacent to the raceway when the second shaft is inserted into the bore, a ram slideably positioned in said aperture, said ram having a head that extends through said side of said bore and mates with said raceway, said ram having a tail, and means for resiliently driving said ram through said aperture and into said raceway.
Claim 10
Dependent Claim
31 words
The apparatus as defined in claim 7 further comprising a second aperture, a second ram and second means for resiliently driving said second ram through XXXXsaid second aperture into said raceway.
Claim 11
Dependent Claim
136 words
A microphone stand for providing quick assembly and disassembly comprising: a first shaft with one end constructed for accepting a microphone, and a second end, a groove or slot constructed circumferentially around the second end of said shaft, a base for supporting the entire microphone stand, said base with a cavity with sides extending into said base, said cavity coaxial with and arranged to accept said second end, an aperture extending from said side of said cavity said aperture positioned at a depth in said base to be adjacent to said groove or slot when said second end is inserted into said cavity, a removable spring clip slideably positioned in said aperture, and means for sliding said spring clip such that the spring clip extends through said side of said cavity and mates with said groove.
Claim 12
Dependent Claim
136 words
A microphone stand for providing quick assembly and disassembly comprising: a first shaft with one end constructed for accepting a microphone, and a second end, a groove or slot constructed circumferentially around the second end of said shaft, a base for supporting the entire microphone stand, said base with a cavity with sides extending into said base, said cavity coaxial with and arranged to accept said second end, an aperture extending from said side of said cavity said aperture positioned at a depth in said base to be adjacent to said groove or slot when said second end is inserted into said cavity, a removable spring clip slideably positioned in said aperture, and means for sliding said spring clip such that the spring clip extends through said side of said cavity and mates with said groove.
References Cited (Backward Citations)
US2459785A
Cited
US3573401A
Cited
US4394097A
Cited
US4760984A
Cited
US4943182A
Cited
US5048789A
Cited
US5046693A
Cited
US5497965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-04-12 | 2002-10-12 | 2003-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-04-12 | 2006-10-12 | 2007-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-04-12 | 2010-10-12 | 2011-04-13 | $7700.00 | Window Closed / Lapsed |