Patent US5246560A successfully refreshed from Google Patents.
Patent US5065560A successfully refreshed from Google Patents.
US5065560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete block inspection forms
Assignee: BLOCKHEAD PRODUCTS Inc
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Filing: 1990-12-06
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Granted: 1991-11-19
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Expires: 2010-12-06
Abstract
Abstract Forms for covering inspection holes or openings in concrete block wall construction in which the forms are of a size to seal the openings and are installed within such openings interiorly of the front face of the concrete blocks. In the preferred embodiments the forms are transparent to provide visual inspection of steel reinforcement and concrete or grout filling of the cores of the concrete blocks.
Inventors
- 👤 Eli J. Yoder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:14
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/14; E04B2/24; E04C; E04C1/00; E04C1/39
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
141 words
An apparatus for sealing an inspection opening formed in a concrete block which opening permits a visual inspection to be made to confirm the structural placement, overlapping and trying of steel rods extending vertically through a cell of the block and wherein the opening is bordered on opposite sides by edges which extend from a front fact of the block to an inner face of the cell comprising, a form means having side wall portions and a front face, said form means being of a size to be inserted within the cell of the block through the inspection opening and thereafter oriented to close the opening with said side wall portions thereof engaging the edges defining the opening in the block, a plurality of spaced holes through said front face, and retainer means for securing said form means within the opening.
Claim 2
Independent Claim
141 words
An apparatus for sealing an inspection opening formed in a concrete block which opening permits a visual inspection to be made to confirm the structural placement, overlapping and trying of steel rods extending vertically through a cell of the block and wherein the opening is bordered on opposite sides by edges which extend from a front fact of the block to an inner face of the cell comprising, a form means having side wall portions and a front face, said form means being of a size to be inserted within the cell of the block through the inspection opening and thereafter oriented to close the opening with said side wall portions thereof engaging the edges defining the opening in the block, a plurality of spaced holes through said front face, and retainer means for securing said form means within the opening.
Claim 3
Dependent Claim
29 words
The apparatus of claim 1 in which said retainer means includes a member having two end portions which extend outwardly into engagement with the front face of the block.
Claim 4
Dependent Claim
42 words
The apparatus of claim 1 in which said retainer means includes at least one clip means extending rearwardly relative to said front face and on opposite sides thereof, said clip means including outer ends for engaging the inner face of the cell.
Claim 5
Dependent Claim
20 words
The apparatus of claim 3 in which said holes are inclined downwardly from said front face of said form means.
Claim 6
Dependent Claim
29 words
The apparatus of claim 3 in which said side wall portions include flange members which are generally parallel to, but spaced from, said front face of said form means.
Claim 7
Independent Claim
179 words
An apparatus for sealing an inspection opening formed in a concrete block which opening permits a visual inspection to be made to confirm the structural placement, overlapping and tying of steel rods extending vertically through a cell of the block and wherein the opening is bordered on opposite sides by edges which extend from a front face of the block to an inner face of the cell comprising, a form means having side wall portions and a front face, said form means being of a size to be inserted within the cell of the block through the inspection opening and thereafter oriented to close the opening with said side wall portions thereof engaging the edges defining the opening in the block, said side wall portions of said form means including at least two vertically oriented walls, said walls extending rearwardly of said front face and first flanges extending from said walls, said flanges being oriented generally parallel to but spaced from said front face of said form means and being engagable with the inner face of the block cell.
Claim 8
Independent Claim
179 words
An apparatus for sealing an inspection opening formed in a concrete block which opening permits a visual inspection to be made to confirm the structural placement, overlapping and tying of steel rods extending vertically through a cell of the block and wherein the opening is bordered on opposite sides by edges which extend from a front face of the block to an inner face of the cell comprising, a form means having side wall portions and a front face, said form means being of a size to be inserted within the cell of the block through the inspection opening and thereafter oriented to close the opening with said side wall portions thereof engaging the edges defining the opening in the block, said side wall portions of said form means including at least two vertically oriented walls, said walls extending rearwardly of said front face and first flanges extending from said walls, said flanges being oriented generally parallel to but spaced from said front face of said form means and being engagable with the inner face of the block cell.
Claim 9
Dependent Claim
39 words
The apparatus of claim 6 including a top wall extending rearwardly of said front face, and a second flange extending upwardly from said top wall and generally parallel to but spaced from said front face of said form means.
Claim 10
Dependent Claim
13 words
The apparatus of claim 6 in which said form means is generally transparent.
Claim 11
Dependent Claim
16 words
The apparatus of claim 8 including retainer means for securing said form means within the opening.
Claim 12
Dependent Claim
85 words
The apparatus of claim 6 in which the thickness of the concrete block adjacent the opening between the inner face of the cell and the front face of the block is of a first dimension and wherein the distance between said first flanges and the front face of said form means is less than said first dimension whereby said front face of said form means is recessed with respect to the front face of the block when said form means is installed within the opening.
Claim 13
Dependent Claim
13 words
The apparatus of claim 10 in which said form means is generally transparent.
Claim 14
Dependent Claim
21 words
The apparatus of claim 10 in which said form means includes a plurality of spaced holes through said front face thereof.
Claim 15
Dependent Claim
48 words
The apparatus of claim 10 in which said form means includes front and rear sections, means for interfitting said front and rear sections in slidable relationship with respect to one another, and adjustment means for selectively extending said front and rear sections outwardly with respect to one another.
Claim 16
Dependent Claim
52 words
The apparatus of claim 13 in which said adjustment means includes an abutment wall mounted to said rear section, a cam member mounted adjacent said abutment wall, and means for selectively rotating said cam member against said abutment wall to thereby extend said rear section outwardly with respect to said first panel.
Claim 17
Dependent Claim
46 words
The apparatus of claim 13 in which said front and rear sections include a plurality of holes therethrough, and said adjustment means including guide means for extending said rear section horizontally with respect to said front section to thereby vary the width of said form means.
Claim 18
Dependent Claim
46 words
The apparatus of claim 13 in which said front and rear sections include a plurality of holes therethrough, and said adjustment means including guide means for extending said rear section upwardly with respect to said front section to thereby vary the height of said form means.
Claim 19
Dependent Claim
49 words
The apparatus of claim 1 in which said retainer means include a plurality of clip means which extend rearwardly relative to said front face of said form means, each of said clip means having an outer hooked end portion for selectively engaging the inner face of the block cell.
Claim 20
Dependent Claim
47 words
The apparatus of claim 1 including a plurality of clip means which extend rearwardly relative to said front face of said form means, each of said clip means having an outer hooked end portion which is selectively engageable with the edges defining the openings in the block.
Claim 21
Dependent Claim
126 words
A combination construction block and inspection window comprising, a concrete block having upper and lower edges and a wall having a front face and an inner face and at least one interior cell, an opening from said front face into said cell, said opening being bordered on either side by side edges which extend from said front face to the inner face of the wall, the distance between said front face and said inner face of said wall being defined by a first dimension, a form means having a front face and side walls extended rearwardly therefrom, said side walls of said form means being selectively engagable with said side edges adjacent said opening, and said form means having at least one air hole opening therethrough.
Claim 22
Dependent Claim
126 words
A combination construction block and inspection window comprising, a concrete block having upper and lower edges and a wall having a front face and an inner face and at least one interior cell, an opening from said front face into said cell, said opening being bordered on either side by side edges which extend from said front face to the inner face of the wall, the distance between said front face and said inner face of said wall being defined by a first dimension, a form means having a front face and side walls extended rearwardly therefrom, said side walls of said form means being selectively engagable with said side edges adjacent said opening, and said form means having at least one air hole opening therethrough.
Claim 23
Dependent Claim
17 words
The combination concrete block and inspection window of claim 19 in which said form means is transparent.
Claim 24
Dependent Claim
25 words
The combination concrete block and inspection window of claim 20 wherein said form means includes a plurality of air holes through the front face thereof.
Claim 25
Dependent Claim
158 words
A combination construction block and inspection window comprising, a concrete block having upper and lower edges and a wall having a front face and an inner face and at least one interior cell, an opening from said front face into said cell, said opening being bordered on either side by side edges which extend from said front face to the inner face of the wall, the distance between said front face and said inner face of said wall being defined by a first dimension, a form means having a front face and side walls extended rearwardly therefrom, said side walls of said form means being selectively engagable with said side edges adjacent said opening, a pair of first flanges extending outwardly from said side walls and generally parallel to said front face of said form means, and said first flanges being engagable with said inner face of said wall when said form means is placed within said opening.
Claim 26
Dependent Claim
158 words
A combination construction block and inspection window comprising, a concrete block having upper and lower edges and a wall having a front face and an inner face and at least one interior cell, an opening from said front face into said cell, said opening being bordered on either side by side edges which extend from said front face to the inner face of the wall, the distance between said front face and said inner face of said wall being defined by a first dimension, a form means having a front face and side walls extended rearwardly therefrom, said side walls of said form means being selectively engagable with said side edges adjacent said opening, a pair of first flanges extending outwardly from said side walls and generally parallel to said front face of said form means, and said first flanges being engagable with said inner face of said wall when said form means is placed within said opening.
Claim 27
Dependent Claim
39 words
The combination concrete block and inspection window of claim 22 wherein said front face of said form means is recessed with respect to said front face of said block wall when said form means is placed within said opening.
Claim 28
Dependent Claim
57 words
The combination concrete block and inspection window of claim 23 in which said opening extends from said upper to said lower surfaces of said block, said form means including an upper wall, and a second flange extending upwardly from said upper wall and being generally parallel to but spaced from said front face of said form means.
Claim 29
Dependent Claim
158 words
A combination construction block and inspection window comprising, a concrete block having upper and lower edges and a wall having a front face and an inner face and at least one interior cell, an opening from said front face into said cell, said opening being bordered on either side by side edges which extend from said front face to the inner face of the wall, the distance between said front face and said inner face of said wall being defined by a first dimension, a form means having a front face and side walls extended rearwardly therefrom, said side walls of said form means being selectively engagable with said side edges adjacent said opening, said form means including front and rear sections, and means for adjustably mounting said front and rear sections together so that said front and rear sections may be extended outwardly with respect to one another to thereby adjust the size of said form means.
Claim 30
Dependent Claim
158 words
A combination construction block and inspection window comprising, a concrete block having upper and lower edges and a wall having a front face and an inner face and at least one interior cell, an opening from said front face into said cell, said opening being bordered on either side by side edges which extend from said front face to the inner face of the wall, the distance between said front face and said inner face of said wall being defined by a first dimension, a form means having a front face and side walls extended rearwardly therefrom, said side walls of said form means being selectively engagable with said side edges adjacent said opening, said form means including front and rear sections, and means for adjustably mounting said front and rear sections together so that said front and rear sections may be extended outwardly with respect to one another to thereby adjust the size of said form means.
Claim 31
Dependent Claim
29 words
The combination concrete block and inspection window of claim 25 in which said form means includes a plurality of air holes through each of said front and rear sections.
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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) | 1994-11-18 | 1995-05-20 | 1995-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-18 | 1999-05-20 | 1999-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-18 | 2003-05-20 | 2003-11-19 | $7700.00 | Window Closed / Lapsed |