US3829540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Technique for aligning anchor bolts
Assignee: Individual
•
Filing: 1970-12-07
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Granted: 1974-08-13
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Expires: 1990-12-07
Abstract
Abstract An improved anchor bolt shield is used to provide a yieldable, deformable annular sleeve about the upper portion of an anchor bolt when the lower end of the bolt is embedded in a concrete foundation. The relatively deformable charcteristics of the sleeve permit the upper, threaded end of the bolt to be adjusted laterally to facilitate alignment of the upper end of the bolt with a receptive hole in a member intended to be secured to the foundation. In one aspect of the invention the sleeve remains in place while in another aspect of the invention the sleeve may be removed and the annular void about the anchor bolt may be filled with an appropriate material.
Inventors
- 👤 J Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:31
CPC Classifications
E; E02; E02D; E02D27/00; E02D27/32; E02D27/44; E04; E04B; E04B1/00; E04B1/38; E04B1/41; E04B1/4157; E04B1/4164; F; F16; F16M; F16M7/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
109 words
An anchor bolt and shield assembly therefor comprising: an anchor bolt having a threaded end and an anchor end; a sleeve extending along said bolt between the ends thereof, said ends of said bolt projecting outwardly of the end of said sleeve, said sleeve circumscribing said bolt and being circumferentially stressed in tension about said bolt whereby said sleeve may be in firm, intimate, sealing engagement substantially along the full region of engagement of said sleeve with said bolt, said sleeve being formed of an expanded plastic material defined by a multiplicity of closed cells extending homogeneously throughout said sleeve, said material being relatively and permanently deformable in compression.
Claim 2
Dependent Claim
109 words
An anchor bolt and shield assembly therefor comprising: an anchor bolt having a threaded end and an anchor end; a sleeve extending along said bolt between the ends thereof, said ends of said bolt projecting outwardly of the end of said sleeve, said sleeve circumscribing said bolt and being circumferentially stressed in tension about said bolt whereby said sleeve may be in firm, intimate, sealing engagement substantially along the full region of engagement of said sleeve with said bolt, said sleeve being formed of an expanded plastic material defined by a multiplicity of closed cells extending homogeneously throughout said sleeve, said material being relatively and permanently deformable in compression.
Claim 3
Dependent Claim
55 words
An anchor bolt and shield assembly as defined in claim 1 wherein said circumferentially tension of said sleeve is effected by means comprising: said sleeve having a bore, which, when said sleeve is relaxed, is smaller in diameter then the diameter of said anchor bolt, said sleeve being press fitted on to said anchor bolt.
Claim 4
Dependent Claim
38 words
An anchor bolt and shield assembly as defined in claim 1 wherein said sleeve is of cylindrical configuration and in which the ends thereof are disposed in a plane substantially normal to the longitudinal axis of said sleeve.
Claim 5
Dependent Claim
59 words
An anchor bolt and shield assembly as defined in claim 1 wherein said sleeve is of frusto-conical configuration and in which the ends of said sleeve are disposed in planes which lie substantially normal to the longitudinal axis of said sleeve, the more narrow end of said sleeve being located adjacent to the anchor end of said anchor bolt.
Claim 6
Independent Claim
218 words
A method of embedding an anchor bolt in a foundation to enable subsequent lateral adjustment of the end of said bolt comprising: providing an anchor bolt having an anchor end and a connector end; locating a sleeve circumferentially about said anchor bolt between the ends thereof and circumferentially stressing said sleeve in tension about said anchor bolt to cause said sleeve to contact said bolt in intimate, firm contact substantially along the full region of contact between said sleeve and said bolt, said sleeve being formed from an expanded plastic material having a multitude of closed cells extending homogeneously throughout said sleeve, said material being deformable in compression and relatively inelastic; supporting said combined sleeve and bolt in a predetermined location in relation to a form in which said foundation is to be poured with said anchor end and said sleeve of said assembly extending into said form and with said connector end extending outwardly of said form; pouring foundation material into said form and about said sleeve and anchor end of said bolt end causing said foundation material to rigidify; said intimate contact between said sleeve and said bolt effecting a seal therebetween without requiring additional sealing members, said deformable character of said sleeve enabling said bolt to be deformed laterally after said foundation material has rigidified.
Claim 7
Independent Claim
218 words
A method of embedding an anchor bolt in a foundation to enable subsequent lateral adjustment of the end of said bolt comprising: providing an anchor bolt having an anchor end and a connector end; locating a sleeve circumferentially about said anchor bolt between the ends thereof and circumferentially stressing said sleeve in tension about said anchor bolt to cause said sleeve to contact said bolt in intimate, firm contact substantially along the full region of contact between said sleeve and said bolt, said sleeve being formed from an expanded plastic material having a multitude of closed cells extending homogeneously throughout said sleeve, said material being deformable in compression and relatively inelastic; supporting said combined sleeve and bolt in a predetermined location in relation to a form in which said foundation is to be poured with said anchor end and said sleeve of said assembly extending into said form and with said connector end extending outwardly of said form; pouring foundation material into said form and about said sleeve and anchor end of said bolt end causing said foundation material to rigidify; said intimate contact between said sleeve and said bolt effecting a seal therebetween without requiring additional sealing members, said deformable character of said sleeve enabling said bolt to be deformed laterally after said foundation material has rigidified.
Claim 8
Dependent Claim
64 words
A method as defined in claim 5 further comprising; removing said sleeve after said foundation has rigidified to leave a void about said anchor bolt; deforming laterally the upper end of said bolt to a desired position within said void; and thereafter filling said void with a hardenable material to provide a homogeneous rigid anchoring completely about said embedded portion of said anchor bolt.
Claim 9
Dependent Claim
55 words
A method is defined in claim 5 wherein said step of locating said sleeve in said sealed relation comprises; providing a sleeve with an axial bore which is smaller in diameter than the diameter of said anchor bolt; and press fitting said sleeve over said bolt to generate a circumferential tensile stress within said sleeve.
Claim 10
Dependent Claim
83 words
A method is defined in claim 5 wherein the upper end of said bolt is threaded and wherein said means for supporting said sleeve and said anchor in relation to said form comprises; providing a support form having a hole therein which is receptive to the threaded, free end of said anchor bolt; and bolting said form to said threaded end of said anchor bolt so that said form is urged firmly against the upper end of said sleeve and sealed relation thereto.
Claim 11
Dependent Claim
38 words
A method as defined in claim 5 wherein said expanded foam material of said sleeve has a density of approximately between 1.8 and 3.3 lbs per cubic foot and a compressive strength of between 25 to 120 psi.
Claim 12
Dependent Claim
40 words
An anchor bolt assembly as defined in claim 1 wherein said expanded foam material of said sleeve has a density of approximately between 1.8 and 3.3 lbs per cubic foot and a compressive strength of between 25 to 120 psi.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |