Patent US4386486A successfully refreshed from Google Patents.
US4386486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cover for concrete voids of lifting inserts
Assignee: MMI Management Services LP
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Filing: 1981-04-13
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Granted: 1983-06-07
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Expires: 2001-04-13
Abstract
Abstract A plug frictionally fits within the lifting eye of an anchor insert of a tilt-up wall slab. The plug is provided with pin receiving passageways whereby a pin-bearing cover plate may be attached to the plug to cover over the access recess to the anchor insert.
Inventors
- 👤 Neil L. Holt
- 👤 William G. Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:22
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/14; E04G21/142; E04C; E04C2/00; E04C2/44; E04C2/52; E04C2/526
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
100 words
Closure plate means for the anchor insert recesses of tilt-up concrete wall slabs comprising a plate having front and back faces, pin means projecting rearwardly from the back face of said plate, a connector plug having: a body portion; a stop member portion; and passageway means; said body portion being adapted to fit within the eye of an anchor insert, said stop member portion being adapted to engage the anchor insert and retain the plug within said insert eye, said passageway means being adapted to receive and frictionally engage said pin means and thereby interconnect said plate and said plug.
Claim 2
Dependent Claim
100 words
Closure plate means for the anchor insert recesses of tilt-up concrete wall slabs comprising a plate having front and back faces, pin means projecting rearwardly from the back face of said plate, a connector plug having: a body portion; a stop member portion; and passageway means; said body portion being adapted to fit within the eye of an anchor insert, said stop member portion being adapted to engage the anchor insert and retain the plug within said insert eye, said passageway means being adapted to receive and frictionally engage said pin means and thereby interconnect said plate and said plug.
Claim 3
Dependent Claim
44 words
The closure plate means of claim 1, said pin means comprising a pair of spaced parallel pins, and said passageway means comprising a pair of passageways formed in end portions of said plug which are disposed outwardly of said body and stop member portions.
Claim 4
Dependent Claim
63 words
The closure plate means of claim 2, said plug body portion being complemental in shape to said eye, and said body portion and said eye being non-round and oriented so that, when said body portion is within said eye, said passageways are disposed in receiving alignment for said pins, said stop member portion being a collar-like flange adapted to engage the anchor insert.
Claim 5
Dependent Claim
23 words
The closure plate means of claim 3, said passageways being provided with tapered teeth adapted to have a biting engagement with said pins.
Claim 6
Dependent Claim
97 words
In combination with a tilt-up concrete wall slab having an anchor insert embedded therein which is provided with a stem having an oval-shaped eye, a recess formed in said slab around said stem for access to said stem of slab-lifting means, a cover plate fitted over said recess and tightly connected to said slab by connector means comprising a plug fitted within said eye, a stop member on the plug to engage said stem, a passageway formed in said plug, and a pin member carried by said plate and frictionally engaged with said plug within said passageway.
Claim 7
Dependent Claim
97 words
In combination with a tilt-up concrete wall slab having an anchor insert embedded therein which is provided with a stem having an oval-shaped eye, a recess formed in said slab around said stem for access to said stem of slab-lifting means, a cover plate fitted over said recess and tightly connected to said slab by connector means comprising a plug fitted within said eye, a stop member on the plug to engage said stem, a passageway formed in said plug, and a pin member carried by said plate and frictionally engaged with said plug within said passageway.
Claim 8
Dependent Claim
33 words
The combination of claim 5, including a pair of passageways formed in said plug and a pair of pin members carried by said plate and frictionally engaged with said plug within said passageways.
Claim 9
Dependent Claim
17 words
The combination of claim 6, said plug having an oval-shaped body portion non-rotationally fitted within said eye.
Claim 10
Dependent Claim
32 words
The combination of claim 7, said stop member being a collar-like flange in engagement with said stem, and said passageways being provided with tapered teeth having biting engagement with said pin members.
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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) | 1986-06-06 | 1986-12-06 | 1987-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-06 | 1990-12-06 | 1991-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-06 | 1994-12-06 | 1995-06-07 | $7700.00 | Window Closed / Lapsed |