Patent US3685782A successfully refreshed from Google Patents.
US3685782A
Expired / Lapsed
US
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Concrete pouring form accessory
Assignee: JA Pomeroy & Co Inc
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Filing: 1970-10-21
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Granted: 1972-08-22
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Expires: 1990-10-21
Abstract
Abstract A concrete pouring form accessory includes a post which supports a slidably removable sleeve and insert threaded thereto in a mold or pouring form during pouring of a concrete railroad tie. Following hardening of the railroad tie, the tie is readily slidably removed from the support post thereby leaving the sleeve disposed within the insert to protect threads of the insert until the sleeve has been unscrewed from the insert (usually at the time of bolting rails to the railroad tie). A resilient annular cone-shaped sealing element forms a plug behind the insert and sleeve to preclude the application of blocking concrete behind the sleeve and the support post.
Inventors
- 👤 Edward L Kowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:46
CPC Classifications
E; E01; E01B; E01B9/00; E01B9/02; E01B9/04; E01B9/14; E01B9/18; B; B28; B28B; B28B23/00; B28B23/005; E01B3/00; E01B3/28; E01B3/32; E01B3/34; E04; E04B; E04B1/00; E04B1/38; E04B1/41; E04B1/4114; E04B1/4121; E04G; E04G15/00; E04G15/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
183 words
A concrete pouring form accessory for providing an anchor insert element embedded in a concrete product comprising a support post adapted to be fixed to a pouring form to project inwardly of a wall portion of the form, a protective sleeve formed with radially outwardly extending positive engagement portions exteriorly thereof and a longitudinally smooth interior slidably positioned onto the distal end of said post, an anchor element of a type adapted to receive and hold bolts to be coupled thereto when embedded in a concrete product, said anchor element being positioned onto said sleeve and having positive engagement portions in readily releasable positive engagement with the first named said portions and formed with laterally protruding exterior portions serving to develop a positive holding anchored engagement with concrete upon hardening of concrete submerging same, means preserving sufficient clearance axially behind and detached from said sleeve and said post during placement of concrete submerging the post and sleeve to permit, after hardening of the concrete, the ready removal of the post from said sleeve and the latter removal of the sleeve from the insert.
Claim 2
Dependent Claim
183 words
A concrete pouring form accessory for providing an anchor insert element embedded in a concrete product comprising a support post adapted to be fixed to a pouring form to project inwardly of a wall portion of the form, a protective sleeve formed with radially outwardly extending positive engagement portions exteriorly thereof and a longitudinally smooth interior slidably positioned onto the distal end of said post, an anchor element of a type adapted to receive and hold bolts to be coupled thereto when embedded in a concrete product, said anchor element being positioned onto said sleeve and having positive engagement portions in readily releasable positive engagement with the first named said portions and formed with laterally protruding exterior portions serving to develop a positive holding anchored engagement with concrete upon hardening of concrete submerging same, means preserving sufficient clearance axially behind and detached from said sleeve and said post during placement of concrete submerging the post and sleeve to permit, after hardening of the concrete, the ready removal of the post from said sleeve and the latter removal of the sleeve from the insert.
Claim 3
Dependent Claim
162 words
A concrete pouring form accessory for providing an anchor insert embedded in a concrete product comprising a support post adapted to be carried by a pouring form to project inwardly of a wall portion of the form, a protective sleeve formed with threads exteriorly thereof and slidably positioned onto the distal end of said post, an anchor element of a type adapted to receive and hold bolts to be threaded thereto when embedded in a concrete product, said anchor element being positioned onto said sleeve in readily releasable positive engagement therewith and formed with laterally protruding portions serving to develop a positive holding anchored engagement with concrete upon hardening of concrete submerging same, means preserving sufficient clearance axially behind and detached from said sleeve and said post during placement of concrete submerging the post and sleeve to permit, after hardening of the concrete, the ready removal of the post from said sleeve and the latter removal of the sleeve from the insert.
Claim 4
Dependent Claim
162 words
A concrete pouring form accessory for providing an anchor insert embedded in a concrete product comprising a support post adapted to be carried by a pouring form to project inwardly of a wall portion of the form, a protective sleeve formed with threads exteriorly thereof and slidably positioned onto the distal end of said post, an anchor element of a type adapted to receive and hold bolts to be threaded thereto when embedded in a concrete product, said anchor element being positioned onto said sleeve in readily releasable positive engagement therewith and formed with laterally protruding portions serving to develop a positive holding anchored engagement with concrete upon hardening of concrete submerging same, means preserving sufficient clearance axially behind and detached from said sleeve and said post during placement of concrete submerging the post and sleeve to permit, after hardening of the concrete, the ready removal of the post from said sleeve and the latter removal of the sleeve from the insert.
Claim 5
Dependent Claim
44 words
A pouring form accessory according to claim 2 wherein the last named means comprises an annular resilient truncated cone element surrounding the post and adapted to be coated with an application of anti-bonding material to provide ready removal thereof from the hardened concrete product.
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |