US3939889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Threaded assembly
Assignee: Ford Motor Co
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Filing: 1974-05-08
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Granted: 1976-02-24
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Expires: 1994-05-08
Abstract
Abstract The preferred embodiment of this invention includes a member having an external thread and a nut received thereon. The nut has an annular plastic insert. A locking wedge, received in a keyway or groove in the member, is in wedged engagement with the plastic insert whereby the nut is prevented from rotating and the wedge is prevented from accidental dislodgement.
Inventors
- 👤 Bogdan Bereznicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:09
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/02; F16B39/04; F16C; F16C35/00; F16C35/04; F16C35/06; F16C35/063; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/939; Y10S411/948
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
A threaded device comprising a member having an externally threaded portion, a longitudinally extending groove formed in said portion, a nut having an internal thread positioned on said member, said nut having an inwardly opening annular channel and an annular organic plastic insert positioned in said channel engaging said externally threaded portion, an elongated locking element operatively interposed between said member and said nut, said locking element being positioned in said groove and constructed to prevent the angular displacement of said nut relative to said member, said locking element having a greater dimension in the radial direction than the depth of said groove whereby said locking element extends radially outwardly beyond the circumference of said externally threaded portion, said plastic insert engaging said locking element and constructed to prevent the longitudinal displacement of said locking element relative to said nut, said locking element having a generally channel shape defined by a base portion and a pair of parallel flange portions, said flange portions each having an inclined surface in wedged engagement with said plastic insert, said inclined surfaces causing the deformation of said plastic insert, at least one of the edges of said inclined surfaces being bent outwardly to enhance the retaining effect of said wedged engagement between said locking element and said plastic insert.
Claim 2
Dependent Claim
215 words
A threaded device comprising a member having an externally threaded portion, a longitudinally extending groove formed in said portion, a nut having an internal thread positioned on said member, said nut having an inwardly opening annular channel and an annular organic plastic insert positioned in said channel engaging said externally threaded portion, an elongated locking element operatively interposed between said member and said nut, said locking element being positioned in said groove and constructed to prevent the angular displacement of said nut relative to said member, said locking element having a greater dimension in the radial direction than the depth of said groove whereby said locking element extends radially outwardly beyond the circumference of said externally threaded portion, said plastic insert engaging said locking element and constructed to prevent the longitudinal displacement of said locking element relative to said nut, said locking element having a generally channel shape defined by a base portion and a pair of parallel flange portions, said flange portions each having an inclined surface in wedged engagement with said plastic insert, said inclined surfaces causing the deformation of said plastic insert, at least one of the edges of said inclined surfaces being bent outwardly to enhance the retaining effect of said wedged engagement between said locking element and said plastic insert.
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) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |