Patent US3877342A successfully refreshed from Google Patents.
US3877342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cage nuts
Assignee: Rapid SA
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Filing: 1973-03-08
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Granted: 1975-04-15
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Expires: 1993-03-08
Abstract
Abstract A cage-nut for use with a wooden, composite fiberboard or chipboard panel having a blind bore therein. The cage-nut includes a stamped, one-piece cage adapted to receive a nut for relative axial movement therein while preventing rotational movement relative thereto. The cage includes means to prevent rotation of the cage relative to the blind bore upon insertion of the cage therein and also includes means responsive to axial movement of the caged nut corresponding to tightening of the nut on a complementary received threaded member to lock the cage both rotationally and axially within the blind bore.
Inventors
- 👤 Bernard Charles Duchatellier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:11
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/06; F16B13/063; F16B13/065; F16B12/00; F16B12/10; F16B12/12; F16B12/14; F16B13/08; F16B13/0866; F16B37/00; F16B37/04; F16B37/044
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
272 words
A cage-nut for use with a panel having a blind bore therein, said cage-nut comprising: a one-piece generally U-shaped cage for insertion base end first into said bore, said cage comprising a base having an aperture therein and two generally semi-circular arms folded concave side-to-concave side to define a caged nut receiving cavity substantially coaxial with said aperture, said arms defining an axially extending pair of slots between the opposed edges of said arms along a portion of their axial extension, each arm having an axially extending tongue attached at the end closest the base, the free end of the tongue bent outwardly to form an outwardly extending barb and the portion of the tongue between the free end and the attached end being bent inwardly to extend into the caged nut receiving cavity at a point axially coincident with a portion of said axially extending slots, said base including a pair of radially outwardly extending wings thereon to prevent rotation of saiD cage in said bore; and a caged nut received in said caged nut receiving cavity, said caged nut having a pair of projections on the periphery thereof for receipt in and cooperation with said axially extending slots to allow axial movement of said nut along said axially extending slots while rotationally fixing said nut to said cage, said tongues biasing said caged nut to the axial portion of said slots closest said base, said nut upon axial movement in said slot towards the free ends of said arms being effective to force said tongues out of said cavity and to force said outwardly extending barbs into said blind bore.
Claim 2
Dependent Claim
272 words
A cage-nut for use with a panel having a blind bore therein, said cage-nut comprising: a one-piece generally U-shaped cage for insertion base end first into said bore, said cage comprising a base having an aperture therein and two generally semi-circular arms folded concave side-to-concave side to define a caged nut receiving cavity substantially coaxial with said aperture, said arms defining an axially extending pair of slots between the opposed edges of said arms along a portion of their axial extension, each arm having an axially extending tongue attached at the end closest the base, the free end of the tongue bent outwardly to form an outwardly extending barb and the portion of the tongue between the free end and the attached end being bent inwardly to extend into the caged nut receiving cavity at a point axially coincident with a portion of said axially extending slots, said base including a pair of radially outwardly extending wings thereon to prevent rotation of saiD cage in said bore; and a caged nut received in said caged nut receiving cavity, said caged nut having a pair of projections on the periphery thereof for receipt in and cooperation with said axially extending slots to allow axial movement of said nut along said axially extending slots while rotationally fixing said nut to said cage, said tongues biasing said caged nut to the axial portion of said slots closest said base, said nut upon axial movement in said slot towards the free ends of said arms being effective to force said tongues out of said cavity and to force said outwardly extending barbs into said blind bore.
Claim 3
Dependent Claim
43 words
The cage-nut of claim 1 wherein said slots are defined by the spaced edges of said arms, each arm having an enlarged portion at the free end thereof which will extend towards the other arm to define the axial boundary of sid slots.
Claim 4
Dependent Claim
32 words
The cage-nut of claim 2 wherein said barbs may be forced into said bore prior to movement of said nut by means of an object inserted into said caged nut receiving cavity.
Claim 5
Dependent Claim
30 words
The cage-nut of claim 1 wherein said tongue extends into said cavity at a point axially coincident with the portion of the slots nearest the free ends of the arms.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |