US3596330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchors for structural tensile members
Assignee: Cementation Co Ltd
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Filing: 1965-10-08
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Granted: 1971-08-03
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Expires: 1985-10-08
Abstract
Abstract An anchor for a grouted structural tensile member of the type coated throughout that part of its stressed length otherwise exposed to aggressive media characterized in that a rigid loadtransmitting sleeve provided with at least one external surface disposed transversely to said tensile member is secured by wedging around a stripped or otherwise uncovered length of said member to enclose said stripped length and a small unstripped length at one or both ends of the stripped length and is sealed to the unstripped length or lengths by flexible sealing means so that the complete anchor structure forms a sealed protective and load-transmitting casing around the length of the tensile member which is closed thereby continuous with the coating which covers the remainder of the member. The foregoing abstract is not intended to be a comprehensive discussion of all of the principles, possible modes or applications of the invention disclosed in this document and should not be used to interpret the scope of the claims which appear at the end of this specification.
Inventors
- 👤 Robert Arthur Scott
- 👤 Richard Henry Bryan Winder
- 👤 Roy Bruce Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:06
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/08; E04C5/12; E04C5/122; F; F16; F16G; F16G11/00; F16G11/04; F16G11/044; F16G11/048; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3907; Y10T24/3916; Y10T24/3924; Y10T24/3996; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7054
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
232 words
In combination: a structural tensile member of the type subject to being stressed and having at least a portion of the length thereof exposed to aggressive media during use; said structural tensile member having a protective coating thereon throughout part of the length thereof comprising said portion of the length thereof exposed during use to aggressive media, a remainder part of the length thereof being uncoated as respects said protective coating; and an anchor secured on said structural tensile member, said anchor comprising: a rigid, loadtransmittinG sleeve having two ends, means defining at least one external load-transmitting surface on said sleeve disposed substantially transversely to the longitudinal axis of said sleeve; said sleeve surrounding said uncoated part and adjoining the coated part of the structural tensile member, said structural tensile member entering said sleeve through at least one end of said sleeve; wedge means received in said sleeve engaging said uncoated part and said sleeve for securing said sleeve to said structural tensile member; means sealing both ends of said sleeve; at least the sealing means sealing said sleeve one end through which said structural member enters being flexible and sealing by engaging said sleeve and said coated part in the vicinity of the sleeve, thereby providing a sealed protective and load-transmitting casing about said structural tensile member, which casing is sealed to the said protective coating on said structural tensile member.
Claim 2
Dependent Claim
232 words
In combination: a structural tensile member of the type subject to being stressed and having at least a portion of the length thereof exposed to aggressive media during use; said structural tensile member having a protective coating thereon throughout part of the length thereof comprising said portion of the length thereof exposed during use to aggressive media, a remainder part of the length thereof being uncoated as respects said protective coating; and an anchor secured on said structural tensile member, said anchor comprising: a rigid, loadtransmittinG sleeve having two ends, means defining at least one external load-transmitting surface on said sleeve disposed substantially transversely to the longitudinal axis of said sleeve; said sleeve surrounding said uncoated part and adjoining the coated part of the structural tensile member, said structural tensile member entering said sleeve through at least one end of said sleeve; wedge means received in said sleeve engaging said uncoated part and said sleeve for securing said sleeve to said structural tensile member; means sealing both ends of said sleeve; at least the sealing means sealing said sleeve one end through which said structural member enters being flexible and sealing by engaging said sleeve and said coated part in the vicinity of the sleeve, thereby providing a sealed protective and load-transmitting casing about said structural tensile member, which casing is sealed to the said protective coating on said structural tensile member.
Claim 3
Dependent Claim
63 words
The combination of claim 1 wherein the sealing means sealing said sleeve one end comprises a first deformable sealing element compressed between said sleeve and said coated part of said structural tensile member in the vicinity of said sleeve; and said sealing means further comprises a second deformable sealing element secured in said sleeve opposite end for sealing off said sleeve opposite end.
Claim 4
Dependent Claim
33 words
The combination of claim 2 further comprising means defining an internal circumferential groove in said sleeve adjacent said sleeve one end; said first deformable sealing element comprising a washer received in said groove.
Claim 5
Dependent Claim
67 words
The combination of claim 1 wherein said coated part in the vicinity of said sleeve is surrounded by said sleeve; said protective coating being made of flexible material; said sealing means for said sleeve one end comprising a tapered ring of relatively rigid material forcibly received within said sleeve between said protective coating and said sleeve and pressing said protective coating into sealing contact with said sleeve.
Claim 6
Dependent Claim
83 words
The combination of claim 1 wherein said structural tensile member projects from said sleeve via the opposite end thereof; a capsule surrounding said sleeve and enclosing said sleeve beyond said opposite end, thereby providing at least part of said sealing means for said opposite end; said flexible sealing means of said sleeve one end comprising a washer of deformable material, said washer encircling and engaging said coated part in the vicinity of said sleeve and engaging said sleeve at said sleeve one end.
Claim 7
Dependent Claim
61 words
The combination of claim 5 further including a metal bushing backing said washer of deformable material, said bushing surrounding said structural tensile member immediately adjoining the washer of deformable material on the axially opposite side thereof from said sleeve for spreading loads applied to the washer of deformable material during use and for preventing extrusion of the washer of deformable material.
Claim 8
Dependent Claim
48 words
The combination of claim 6 wherein said bushing includes a tubular neck extending axially away from said sleeve, about said structural tensile member for protecting the protective coating adjacent the anchor from lateral stresses arising from concentrated compression generated in the vicinity of said anchor when in use.
Claim 9
Dependent Claim
63 words
The combination of claim 1 wherein said sealing means at said sleeve one end comprises a flexible washer encircling said coated part in the vicinity of said sleeve; a tubular capsule surrounding said sleeve and having means at one end thereof sealingly holding said flexible washer securely against said sleeve one end; and means sealing off the opposite end of said tubular capsule.
Claim 10
Dependent Claim
24 words
The combination of claim 8 wherein said holding means on said tubular capsule comprises means defining a radially inwardly projecting shoulder on said capsule.
Claim 11
Dependent Claim
45 words
The combination of claim 9 wherein the radially inwardly projecting shoulder tapers proceeding axially away from said sleeve to define a conical cavity with said sleeve one end, said flExible washer being compressed between said shoulder and said sleeve one end within said conical cavity.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |