Patent US4752652A successfully refreshed from Google Patents.
US4752652A
Expired / Lapsed
US
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Anti-short bushing
Assignee: WPFY Inc
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Filing: 1986-09-03
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Granted: 1988-06-21
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Expires: 2006-09-03
Abstract
Abstract An anti-short bushing, for use between a tubular metal sheath and an electrical conductor carried within the metal sheath, comprising a tubular insulative unit configured to be inserted between the sheath and the conductor. The tubular insulative unit is formed as a single molded piece having three connected segments. Two of the segments are generally semi-cylindrical and each has a shoulder projecting radially therefrom at one end. The two segments are connected by an elongated hinge which permits them to be folded relative to one another to form a tubular configuration with their shoulders forming a partial circumferential shoulder. The third segment is connected to the elongated hinge by a second hinge to permit the third segment to be rotated to project radially outwardly so as to form with the two shoulders of the other two segments a complete circumferential shoulder.
Inventors
- 👤 Bernard R. Danti
- 👤 Joel A. Hamilton
- 👤 David P. Williams
- 👤 Paul W. Suprono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:07
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/18; H01B7/24; H02; H02G; H02G3/00; H02G3/02; H02G3/06; H02G3/0616; H02G3/0691
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
148 words
An anti-short bushing for insertion between a tubular metal sheath and an electrical conductor carried within said metal sheath comprising, a generally tubular insulative unit having a body configured to be inserted between said sheath and said conductor, and a shoulder that projects radially outward from one end of said body of said unit to lie over the end of said sheath, said body and said shoulder comprising a single molded piece having three segments, two of said segments being generally semi-cylindrical and connected by an elongated hinge permitting them to be folded relative to one another to form said body and only a portion of said shoulder, a third said segment connected by a second hinge to said elongated hinge to permit said third segment to be rotated to project radially outward from said body to enable said third segment to substantially complete said outwardly projecting shoulder.
Claim 2
Dependent Claim
148 words
An anti-short bushing for insertion between a tubular metal sheath and an electrical conductor carried within said metal sheath comprising, a generally tubular insulative unit having a body configured to be inserted between said sheath and said conductor, and a shoulder that projects radially outward from one end of said body of said unit to lie over the end of said sheath, said body and said shoulder comprising a single molded piece having three segments, two of said segments being generally semi-cylindrical and connected by an elongated hinge permitting them to be folded relative to one another to form said body and only a portion of said shoulder, a third said segment connected by a second hinge to said elongated hinge to permit said third segment to be rotated to project radially outward from said body to enable said third segment to substantially complete said outwardly projecting shoulder.
Claim 3
Dependent Claim
29 words
The anti-short busing of claim 1 wherein said unit bears at least one dimple projecting from an outer wall of said body for retaining said bushing in said sheath.
Claim 4
Dependent Claim
28 words
The anti-short bushing of claim 2 wherein said unit bears a plurality of dimples including said one dimple, and said dimples lie at different distances from said shoulder.
Claim 5
Dependent Claim
45 words
The anti-short bushing of claim 3 adapted for use with a said sheath having a spiral metal casing with a spiral groove in its interior wall and differences in said distances allow said dimples to rest within said groove at different positions along said sheath.
Claim 6
Dependent Claim
23 words
The anti-short bushing of claim 2 wherein each said dimple has a contour that permits relatively easier insertion than withdrawal of said bushing.
References Cited (Backward Citations)
US2563604A
Cited
US1779951A
Cited
US1857197A
Cited
US1742488A
Cited
US1799765A
Cited
US1808542A
Cited
US1793697A
Cited
US1842216A
Cited
US1801549A
Cited
US1829512A
Cited
US2246124A
Cited
US2209274A
Cited
US2249593A
Cited
US2268060A
Cited
US2245422A
Cited
US3133147A
Cited
US3056852A
Cited
US3643290A
Cited
US3836698A
Cited
US3889909A
Cited
US4233469A
Cited
US4289923A
Cited
US4535196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-06-21 | 1991-12-21 | 1992-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-21 | 1995-12-21 | 1996-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-21 | 1999-12-21 | 2000-06-21 | $7700.00 | Window Closed / Lapsed |