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US3670796A Expired / Lapsed US ⏱️ 0.0 years remaining

Fastening device with captive, axial floating nut

Assignee: Harvard Industries Inc
•
Filing: 1969-12-02
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Granted: 1972-06-20
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Expires: 1989-12-02
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Abstract

Abstract A fastening device such as a clip-nut in which the nut is free to move axially relative to the clip, the axial displacement of the nut being at least of the order of magnitude of the length of travel of the nut necessary to effectively thread the nut upon a mating screw and bring the clamping surface of the nut into clamping engagement against the workpiece to which the clip-nut is affixed such that upon initial insertion of the screw into the clip-nut, axial movement of the portion of the clip which holds the nut captive is limited to no more than that which will only deflect the clip resiliently.

Inventors

  • 👤 David W Grimm

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 20:04
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/044; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/97

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 283 words
A clip-nut for locating and retaining a nut in alignment within an opening in a workpiece to receive a screw advanced through the opening, said clip-nut comprising: a clip including a first arm having a first aperture therein and a second arm juxtaposed with said first arm and integral therewith, said second arm having a second aperture aligned axially with said first aperture, said first and second arms being capable of resilient deflection away from one another to receive said workpiece between the first and second arms with said apertures in alignment with the opening in the workpiece; a nut having a tubular body with an internally threaded axial bore in which the thread extends axially along a substantial portion of the bore and includes a plurality of convolutions along the axial length of the thread, said body including a clamping surface; and means cApturing the nut upon one of said first and second arms for axial displacement between a first position wherein the clamping surface of the nut is spaced axially from said one arm and a second position wherein the clamping surface of the nut is in clamping engagement with respect to said one arm; the axial spacing between the clamping surface of the nut and the one arm when the nut is in said first position being at least in the order of magnitude of the length of travel of the nut necessary to thread the entire length of the thread of the nut into engagement with the screw and to bring the nut into said second position without exceeding the limit of resilient deflection available between the first and second arms when the clip-nut is installed upon the workpiece.
Claim 2
Dependent Claim 283 words
A clip-nut for locating and retaining a nut in alignment within an opening in a workpiece to receive a screw advanced through the opening, said clip-nut comprising: a clip including a first arm having a first aperture therein and a second arm juxtaposed with said first arm and integral therewith, said second arm having a second aperture aligned axially with said first aperture, said first and second arms being capable of resilient deflection away from one another to receive said workpiece between the first and second arms with said apertures in alignment with the opening in the workpiece; a nut having a tubular body with an internally threaded axial bore in which the thread extends axially along a substantial portion of the bore and includes a plurality of convolutions along the axial length of the thread, said body including a clamping surface; and means cApturing the nut upon one of said first and second arms for axial displacement between a first position wherein the clamping surface of the nut is spaced axially from said one arm and a second position wherein the clamping surface of the nut is in clamping engagement with respect to said one arm; the axial spacing between the clamping surface of the nut and the one arm when the nut is in said first position being at least in the order of magnitude of the length of travel of the nut necessary to thread the entire length of the thread of the nut into engagement with the screw and to bring the nut into said second position without exceeding the limit of resilient deflection available between the first and second arms when the clip-nut is installed upon the workpiece.
Claim 3
Dependent Claim 71 words
The clip-nut of claim 1 wherein said axial spacing is at least equal to the length of travel of the nut necessary to thread the entire length of the thread of the nut along the screw to bring the clamping surface of the nut into clamping engagement less the available resilient deflection of the arms away from one another beyond that deflection which enables retention of the workpiece between said arms.
Claim 4
Dependent Claim 39 words
The clip-nut of claim 1 wherein said axial spacing is at least approximately the same as the total axial length of the thread of the nut, less an amount sufficient to enable starting of the screw in the nut.
Claim 5
Dependent Claim 32 words
The clip-nut of claim 1 wherein said axial spacing is at least equal to the total axial length of the thread of the nut less the axial length of one thread pitch.
Claim 6
Dependent Claim 111 words
The clip-nut of claim 1 wherein: said capturing means include a pair of opposed U-shaped members integral with said one arm, each U-shaped member having a pair of legs extending axially from said one arm and a transverse element spaced axially from said one arm and interconnecting said pair of legs; and the nut is located between the U-shaped members and includes opposite projections, each projection extending laterally between the pair of legs of a U-shaped member to capture the nut upon said one arm between the U-shaped members axially between said first position of the nut where the projections engage said transverse elements, and the second position of the nut.
Claim 7
Dependent Claim 71 words
The clip-nut of claim 5 wherein said axial displacement is at least equal to the length of travel of the nut necessary to thread the entire length of the thread of the nut along the screw to bring the clamping surface of the nut into clamping engagement less the available resilient deflection of the arms away from one another beyond that deflection which enables retention of the workpiece between said arms.
Claim 8
Dependent Claim 39 words
The clip-nut of claim 5 wherein said axial spacing is at least approximately the same as the total axial length of the thread of the nut, less an amount sufficient to enable starting of the screw in the nut.
Claim 9
Dependent Claim 32 words
The clip-nut of claim 5 wherein said axial spacing is at least equal to the total axial length of the thread of the nut less the axial length of one thread pitch.

References Cited (Backward Citations)

GB868086A Cited
FR1236404A Cited
US3118480A Cited
US3020947A Cited
US3145753A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-06-20 1975-12-20 1976-06-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-20 1979-12-20 1980-06-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-20 1983-12-20 1984-06-20 $7700.00 Window Closed / Lapsed

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