U.S. patent application number 14/331538 was filed with the patent office on 2016-01-21 for slotted insert with captured nut anchor.
The applicant listed for this patent is Dayton Superior Corporation. Invention is credited to Hunter Everett, Matthew Hekman, Andrew P. Magee.
Application Number | 20160017593 14/331538 |
Document ID | / |
Family ID | 53488148 |
Filed Date | 2016-01-21 |
United States Patent
Application |
20160017593 |
Kind Code |
A1 |
Magee; Andrew P. ; et
al. |
January 21, 2016 |
SLOTTED INSERT WITH CAPTURED NUT ANCHOR
Abstract
A slotted insert based upon a non-metallic void former including
a neck portion defining a longitudinally elongated slot, the neck
portion having a first transverse width, and a channel portion
defining a longitudinally elongated channel, the channel having a
second transverse width substantially greater than the first
transverse width. The insert includes a metal nut, captured within
the channel, having an aperture and a third transverse width
substantially greater than the first transverse width. The
longitudinally elongated slot and longitudinally elongated channel
are interconnected with the aperture of the captured metal nut
accessible through the slot to provide an adjustable anchoring or
connection point to other structural components. Various attachment
features allow the insert to be positioned within formworks with or
without direct attachment to the forming surface of a concrete form
member.
Inventors: |
Magee; Andrew P.;
(Centerville, OH) ; Hekman; Matthew; (Yucaipa,
CA) ; Everett; Hunter; (Kettering, OH) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Dayton Superior Corporation |
Miamisburg |
OH |
US |
|
|
Family ID: |
53488148 |
Appl. No.: |
14/331538 |
Filed: |
July 15, 2014 |
Current U.S.
Class: |
52/699 |
Current CPC
Class: |
E04B 2001/4192 20130101;
E04G 15/04 20130101; E04G 21/142 20130101; E04B 1/4121 20130101;
E04B 1/4128 20130101 |
International
Class: |
E04B 1/41 20060101
E04B001/41 |
Claims
1. A slotted insert for concrete construction, the slotted insert
comprising: a non-metallic void former including: a neck portion
defining a longitudinally elongated slot, the neck portion having a
first transverse width; and a channel portion defining a
longitudinally elongated channel, the channel having a second
transverse width substantially greater than the first transverse
width; and a metal nut, captured within the channel, having an
aperture and a third transverse width substantially greater than
the first transverse width; wherein the longitudinally elongated
slot and longitudinally elongated channel are interconnected and
mutually aligned such that the longitudinal axis of the slot and
the longitudinal axis of the channel are parallel to each other,
with the aperture of the captured metal nut accessible through the
slot.
2. The slotted insert of claim 1, wherein the third transverse
width is equal to the second transverse width.
3. The slotted insert of claim 1, wherein the neck portion and
channel portion are separate portions of the insert, releaseably
interlocking with each other.
4. The slotted insert of claim 3, wherein a channel-facing end of
the neck portion includes an outwardly-projecting peripheral
flange, and a neck-facing end of the channel portion includes an
inwardly-open circumferential track engaging the peripheral flange
to interlock the neck and channel portions together.
5. The slotted insert of claim 4, wherein the channel portion
comprises separable halves, each half including a latch arm and a
locking ramp, with the latch arm of one of the halves opposing and
mutually engagable with the locking ramp of the other of the
halves, and the locking ramp of the one of the halves opposing and
mutually engagable with the latch arm of the other of the
halves.
6. The slotted insert of claim 1, further comprising a removable
cap portion configured to seal the longitudinally elongated slot
opposite the longitudinally elongated channel.
7. The slotted insert of claim 6, wherein the removable cap portion
is a frangible part of the neck portion defined by a thinned web
proximate the periphery of the elongated longitudinal slot opposite
the longitudinally elongated channel.
8. The slotted insert of claim 1, wherein the neck portion includes
an outwardly-projecting peripheral flange opposite a channel-facing
end of the neck portion.
9. The slotted insert of claim 8, wherein the peripheral flange
comprises a plurality of outwardly-projecting tabs projecting
longitudinally from the neck portion opposite the channel-facing
end.
10. The slotted insert of claim 1, wherein the channel portion
includes a plurality of outwardly-projecting clips configured to
affix the insert to metal reinforcing bars bracketing the channel
portion.
11. The slotted insert of claim 1, wherein the metal nut is a
rectangular nut.
12. The slotted insert of claim 11, wherein the channel portion
includes a pair of longitudinally-running, laterally-projecting
bearing surfaces on opposite lateral sides of the channel portion,
and the metal nut includes a pair of longitudinally-running,
laterally-projecting wings on opposite lateral sides of the nut,
the wings of the nut generally conforming to the bearing surfaces
of the channel portion.
13. The slotted insert of claim 12, wherein the channel portion
includes a plurality of outwardly-projecting clips configured to
affix the insert to metal reinforcing bars bracketing the channel
portion, and the clips project across the longitudinally-running,
laterally-projecting bearing surfaces of the channel portion.
14. The slotted insert of claim 11, wherein a channel-facing end of
the neck portion includes a plurality of elastic fingers, the
elastic fingers being configured to project within the
longitudinally elongated channel to interfere with movement of the
metal nut.
15. A formwork construction comprising: an insert including: a
non-metallic neck portion defining a longitudinally elongated slot,
the neck portion having a first transverse width; a non-metallic
channel portion defining a longitudinally elongated channel, the
channel having a second transverse width substantially greater than
the first transverse width; a metal nut captured within the
channel, the metal nut having an aperture and a third transverse
width substantially greater than the first transverse width; and a
removable cap portion configured to seal the longitudinally
elongated slot opposite the longitudinally elongated channel;
wherein the longitudinally elongated slot and longitudinally
elongated channel are interconnected and mutually aligned such that
the longitudinal axis of the slot and the longitudinal axis of the
channel are parallel to each other, with the aperture of the
captured metal nut accessible through the slot upon removal of the
removable cap portion; and a pair of metal reinforcing bars
bracketing the void former proximate the longitudinally elongated
channel and extending parallel to the longitudinal axis of the
channel, wherein the insert is affixed to the pair of metal
reinforcing bars.
16. The formwork construction of claim 15, wherein the insert is
affixed to the pair of metal reinforcing bars via a plurality of
clips projecting outwardly from the channel portion.
17. The formwork construction of claim 16, wherein the channel
portion includes a pair of longitudinally-running,
laterally-projecting bearing surfaces on opposite lateral sides of
the channel portion, and the metal nut includes a pair of
longitudinally-running, laterally-projecting wings on opposite
lateral sides of the nut, the wings of the nut generally conforming
to the bearing surfaces of the channel portion.
18. The formwork construction of claim 17, wherein the each of the
plurality of outwardly-projecting clips projects across a
respective one of the longitudinally-running, laterally-projecting
bearing surfaces of the channel portion.
19. A formwork construction comprising: a void former including: a
non-metallic neck portion defining a longitudinally elongated slot,
the neck portion having a first transverse width; a non-metallic
channel portion defining a longitudinally elongated channel, the
channel having a second transverse width substantially greater than
the first transverse width; and a metal nut, captured within the
channel, having an aperture and a third transverse width
substantially greater than the first transverse width; wherein the
longitudinally elongated slot and longitudinally elongated channel
are interconnected and mutually aligned such that the longitudinal
axis of the slot and the longitudinal axis of the slot are parallel
to each other, with the aperture of the captured metal nut
accessible through the slot; and a support member, wherein the neck
portion is affixed to the forming member via a plurality of
fasteners, inserted through an outwardly-projecting peripheral
flange disposed opposite a channel-facing end of the neck portion
and into the forming member.
20. The formwork of claim 19, wherein the outwardly-projecting
peripheral flange comprises a plurality of outwardly-projecting
tabs projecting longitudinally from the neck portion opposite the
channel-facing end.
Description
TECHNICAL FIELD
[0001] The present disclosure relates to concrete forming systems,
and more particularly to slotted inserts used to provide cast
concrete elements with adjustable attachment points for wall
panels, architectural panels, structural framing, decking, and
other precast or premanufactured structural components. The slotted
insert is embedded within a precast or site-cast concrete element,
with the captured nut providing an adjustable, threaded-bolt-type
connection for adjoining precast or premanufactured structural
components.
BACKGROUND
[0002] Slotted inserts are used in concrete construction, most
typically in precast construction, to provide adjustable anchoring
or connection points amongst precast and premanufactured structural
components or between site-cast foundations or walls and such
structural components. Such inserts typically have a metal body
defining both a longitudinally elongated slot and a plurality of
transversely projecting legs, such as in the P30 Corewall.RTM. Nut
Type Slotted Insert (manufactured by Dayton Superior Corporation of
Miamisburg, Ohio, USA). A metal nut is captured behind the
elongated slot and within a housing defining elongated channel,
with the captured nut being slidably positionable along the length
of the slot and channel to provide a longitudinally-adjustable
connection. The cap and elongated slot may face horizontally and
extend vertically, e.g., be embedded within the face of a wall to
provide a vertically adjustable connection point to a precast
panel, or face vertically and run horizontally, e.g., be embedded
within a floor to provide a horizontally adjustable connection
point to a precast panel, however it will be appreciated that the
insert may be molded in and/or ultimately positioned in any
orientation, without limitation, as required by the intended
connection. The insert may be attached to a concrete form so that
the elongated slot is positioned against the inner face of the
forming surface, or may be emplaced within a casting bed, with the
cap and elongated slot facing upward and positioned proximate the
free surface of the concrete, via attachment to a support member or
even manual setting within the wet concrete. The captured nut is
frequently protected from exposure to poured concrete by a
removable cap positioned within the slot or could alternately be
protected by a means for forming a seal against the inner face of
the forming surface. Rebar is frequently clipped or tied to the
transversely projecting legs of the steel body, between the legs
and the inner face of the forming surface, to help to anchor the
insert and resist pull-out from the surrounding concrete.
[0003] Wet concrete is poured and cured within an assembled
formwork around the attached insert. The formwork is subsequently
stripped from the formed concrete and embedded insert, with the
elongated slot of the insert ending up essentially flush with the
surface of the formed concrete element. The removable cap, if
present, is removed to expose the elongated slot and the captured
nut, which remains longitudinally adjustable within the elongated
slot but captured within the insert and the surrounding concrete.
Precast or premanufactured structural components such as wall
panels, structural framing, decking, and the like may be connected
to the nut, insert, and surrounding concrete by a threaded bolt or
by a threaded-bolt-type connection such as a threaded strap anchor.
The resulting connection is both adjustable, to accommodate
variation in the dimensions of other components and the positions
of their connection points, and ductile, for use as a structural
connection in seismically active regions.
SUMMARY
[0004] The applicants have devised an improved slotted insert which
functions similarly to known slotted inserts, but does not require
a metal body like that used in existing inserts. Instead, the
slotted insert uses a multi-part, non-metallic void former housing
a metal nut. The void former defines an elongated slot with a first
transverse width and a recessed, elongated channel with a second,
substantially greater transverse width. In use, the metal nut, also
having a transverse width substantially greater than the first
transverse width, bears against concrete surrounding the void
former rather than against a metal body member. Consequently, the
void former or insert body may be manufactured entirely from molded
plastics or other non-metallic materials. Thus construction reduces
the weight of the resultant insert, the cost of manufacturing the
insert, and the susceptibility of the insert to galvanic or
oxidative corrosion.
[0005] In a first aspect, a slotted insert comprises a non-metallic
void former including a neck portion defining a longitudinally
elongated slot, the neck portion having a first transverse width,
and a channel portion defining a longitudinally elongated channel,
the channel having a second transverse width substantially greater
than the first transverse width. The insert further comprises a
metal nut, captured within the channel, having an aperture and a
third transverse width substantially greater than the first
transverse width. The longitudinally elongated slot and
longitudinally elongated channel are interconnected and mutually
aligned such that the longitudinal axis of the slot and the
longitudinal axis of the channel are parallel to each other, with
the aperture of the captured metal nut accessible through the
slot.
[0006] In a second aspect, a formwork construction comprises an
insert including a non-metallic neck portion defining a
longitudinally elongated slot, the neck portion having a first
transverse width, a non-metallic channel portion defining a
longitudinally elongated channel, the channel having a second
transverse width substantially greater than the first transverse
width, a metal nut captured within the channel, the metal nut
having an aperture and a third transverse width substantially
greater than the first transverse width, and a removable cap
portion configured to seal the longitudinally elongated slot
opposite the longitudinally elongated channel. The longitudinally
elongated slot and longitudinally elongated channel are
interconnected and mutually aligned such that the longitudinal axis
of the slot and the longitudinal axis of the channel are parallel
to each other, with the aperture of the captured metal nut
accessible through the slot upon removal of the removable cap
portion. The formwork further comprises a pair of metal reinforcing
bars, bracketing the void former proximate the longitudinally
elongated channel and extending parallel to the longitudinal axis
of the channel. The insert is preferably affixed to the metal
reinforcing bars via a plurality of clips projecting outwardly from
the void former channel portion.
[0007] In a third aspect, a formwork construction comprises a an
insert including a non-metallic neck portion defining a
longitudinally elongated slot, the neck portion having a first
transverse width, a non-metallic channel portion defining a
longitudinally elongated channel, the channel having a second
transverse width substantially greater than the first transverse
width, and a metal nut, captured within the channel, having an
aperture and a third transverse width substantially greater than
the first transverse width. The longitudinally elongated slot and
longitudinally elongated channel are interconnected and mutually
aligned such that the longitudinal axis of the slot and the
longitudinal axis of the slot are parallel to each other, with the
aperture of the captured metal nut accessible through the slot. The
formwork further comprises a support member, which may be a
concrete form, wherein the neck portion is affixed to an inner
surface of support member via a plurality of fasteners inserted
through a projecting tab or flange and into the inner surface.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is a perspective view of an embodiment of the void
former.
[0009] FIG. 2 is an exploded perspective of the embodiment of FIG.
1 which further illustrates the longitudinally elongated slot,
longitudinally elongated channel, and captured metal nut.
[0010] FIG. 3 is a perspective view of a formwork assembly
including metal reinforcing bars affixed to the void former.
[0011] FIG. 4 is a perspective view of a formwork assembly
including a void former affixed to the inner surface of a support
member.
DETAILED DESCRIPTION
[0012] As shown in FIGS. 1 and 2, an insert 100 comprises a
non-metallic void former 110 including a neck portion 120 defining
a longitudinally elongated slot 130 and a channel portion 140
defining a longitudinally elongated channel 150. The insert 110
also includes a metal nut 160 captured within the channel 150. The
channel 150 is substantially wider than the neck portion 120, with
"substantially" meaning for the purposes of this application an
average, along the respective longitudinally elongated structures,
of 1/4 inch wider or more on each side, so as to permit the metal
nut 160 to bear against concrete surrounding the neck portion 120
of the void former 110. As shown specifically in FIG. 2, the neck
portion 120 may have a first transverse width 122, the defined
channel 150 a second transverse width 152 substantially greater
than the first transverse width 122, and the metal nut 160 a third
transverse width 162 substantially greater than the first
transverse width 122. The third transverse width 162 is preferably,
but not necessarily, essentially equal to the second transverse
width 152. The longitudinally elongated slot 130 and longitudinally
elongated channel 150 (i.e., the voids, not the void-forming
structures) are interconnected and mutually aligned such that the
longitudinal axis of the slot and the longitudinal axis of the
channel are parallel to each other.
[0013] The neck portion 120 and the channel portion 140 are
preferably separate portions of the insert 100 so that different
neck portions 120 having different depths 124 may be affixed to the
same channel portion 140 in order to provide an adjustable,
threaded-bolt-type connection 164 at different depths from the
surface of the concrete "S" (indicated in FIG. 3). The portions
120, 140 may be releaseably interlocking with each other for
interchangability. For example, a channel-facing end 126 of the
neck portion 120 may include an outwardly-projecting peripheral
flange 128, and a neck-facing end 144 of the channel portion 140
may include an inwardly-open circumferential track 146 which
engages the peripheral flange 128 to interlock the neck portion 120
and channel portion 140 together. It will be appreciated that the
channel-facing end 126 of the neck portion 120 could include such a
track, and the a neck-facing end 144 of the channel portion 140
include such a projecting peripheral flange, to provide the same
functionality. The neck portion 120 may be flexible enough that the
channel-facing end 126 and flange 128 may be compressed to fit
within the circumferential track 146. However, the channel portion
140 may comprise separable halves 140a, 140b and be connectable by
respective latching tabs 148a and ridged lands 149a (shown in FIG.
2) or U-shapes latch arms 148b and locking ramps 149b (shown in
FIG. 4). This construction permits the channel portion halves 140a,
140b to be snapped around the peripheral flange 128 of the neck
portion 120, and enables easy insertion of the metal nut 160 into
the channel 150 formed by the halves during manufacturing or user
assembly. Those of skill in the art will appreciate that the neck
portion 120 and/or channel portion(s) 140 or 140a and 140b may be
affixed to each other by solvent welding, ultrasonic welding,
adhesives, and similar known means for joining materials so as to
negate the need for one or more of the structures and features
specifically described in this paragraph.
[0014] In some embodiments, the insert portion 100 includes a
removable cap portion 170 configured to seal the longitudinally
elongated slot 130 opposite the longitudinally elongated channel
150. The removable cap portion 170 may be a frangible part of the
neck portion 120, defined by a thinned web or line of perforation
172 (both indicated by the illustrated dashed line) proximate the
periphery of the elongated longitudinal slot 130. The cap portion
170 may be removed by puncturing the portion with a tool such as a
screw driver and breaking the frangible web or line of perforation
172. The removable cap portion 170 might include a pull-tab, e.g. a
molded loop and stem attached to the cap portion via a living
hinge, configured to enable tool-less removal. Alternately, the
removable cap portion 170 might be a separate non-metallic or
metallic cap which snap-fits into engagement with the neck portion
120 opposite the channel portion 140. A separate, metallic
removable cap 170, such as a steel cap, could be detected by an
appropriately calibrated metal detector and/or reused with other
inserts 100 in subsequent forming activities.
[0015] In some embodiments, the neck portion 120 includes a
plurality of outwardly-projecting tabs 125 opposite the
channel-facing end 126. As shown, the tabs include reinforcing
gussets 125a and project longitudinally from the neck portion 120.
However, it will be appreciated that gussets 125a are optional and
that tabs 125 may project longitudinally from the neck portion 120,
transversely from the neck portion 120, and/or at non-orthogonal
angles with respect to the longitudinal axis of the elongated
longitudinal slot 130. The tabs 125 are illustrated as including
apertures, but it will be appreciated that the apertures may
instead be thin webs or even omitted, with fasteners such as nails
serving to form their own aperture when used to secure the insert
100 against a concrete form via the tabs. In other embodiments, the
neck portion 120 includes an outwardly-projecting peripheral
flange, opposite the peripheral flange 128 at the channel-facing
end 126, which may include similar apertures or thin webs for
receiving fasteners. For the purposes of the application and
claims, this peripheral flange shall be considered a generic case
which encompasses one or more outwardly-projecting tabs 125 of
varying size.
[0016] In some embodiments, the channel portion 140 includes a
plurality of outwardly-projecting clips 145. The clips may serve to
affix the insert 100 to metal reinforcing bars or "rebar"
positioned within the concrete form, removing the need to directly
secure the insert 100 to a concrete form. It will be appreciated
that the insert 100 may be positioned directly adjacent a concrete
form, such as under a cap form or beside a wall form, through the
clip-connection while not being directly secured to the form
itself. In some embodiments (not shown), mutually opposing pairs of
clips 145 may be disposed on the laterally outermost or
longitudinally outermost sides of the channel portion 140. In the
illustrated embodiment, clips 145 are configured to receive metal
reinforcing bars running parallel to the longitudinal axis of the
channel 150, and also to project across a longitudinally-running,
laterally-projecting bearing surface 143 in the channel portion
140. The bearing surface may further include a clip-opposing saddle
147 to maintain the metal reinforcing bar in position. As explained
below, in this embodiment the metal nut 160 may bear against the
reinforcing rod to resist pull-out of the nut from the insert 100
and surrounding concrete.
[0017] The metal nut 160 is preferably a rectangular nut, but not
necessarily a hyperrectangle or orthotope (i.e., not necessarily a
strictly rectangular box). In some embodiments, metal nut 160 may
be a rectangular nut with rounded edges, such as a conventional
square nut. In other embodiments, the metal nut 160 may include a
rectangular portion but also include an integral shaft structure,
such as in a T-slot nut, to provide greater load capacity to the
aperture 164 of the nut. The aperture 164 is typically threaded
such that increasing the depth of the aperture will generally
increase the load capacity of the metal nut 160. In the illustrated
embodiment, the metal nut 160 includes a pair of
longitudinally-running, laterally-projecting wings 163 which
generally conform to the longitudinally-running, laterally
projecting bearing surfaces 143 in the channel portion 140. Metal
reinforcing bars positioned upon the bearing surfaces 143 of the
channel portion will be disposed proximate the wings 163 of the nut
160, and consequently the nut 160 will bear against those bars when
a tensile load is applied to the aperture 162 by a threaded-bolt or
threaded-bolt-type connection through the elongated longitudinal
slot 130. In each such embodiment, the aperture 162 is accessible
through the longitudinally elongated slot 130 or becomes accessible
through that slot upon removal of the removable cap portion 170. In
some embodiments, the metal nut 160 may include an elastomeric
spacer 166, e.g., a spacer formed from an elastomeric open-cell or
closed-cell foam, adhered to one of the non-longitudinal sides of
the nut. The elastomeric spacer 166 may be adhered to the nut using
an adhesive, e.g., a pressure-sensitive adhesive, and serve to
increase friction between the metal nut 160 and channel portion 140
in order to prevent unwanted sliding of the metal nut 160 within
the channel 150. In other embodiments, the a channel-facing end 126
of the neck portion 120 may include a plurality of elastic fingers
127 configured to project within the longitudinally elongated
channel 150. The elastic fingers 127 will interfere with movement
of the metal nut 160 within the channel 150, but deflect when force
is applied to the nut to move it within the channel 150, e.g., when
a tool is used to positively manipulate the nut and/or an connected
element is positioned prior to tensioning of the connection. In
still other embodiments, a combination of such features can be
used. The metal nut 160 may thus be manipulated to slide
longitudinally within the channel 150, but substantially prevented
from sliding within the channel due to the force of gravity or
minor manipulation of the insert 100 during installation.
[0018] In use, an example of which is shown in FIG. 3, a formwork
200 may include the insert 100 and at least a pair of metal
reinforcing bars 210 bracketing the void former 110 proximate the
channel portion 140 and longitudinally elongated channel 150 (shown
in FIG. 2). At least those portions of the metal reinforcing bars
210 proximate the channel portion may be configured to extend
parallel to the longitudinal axis of the longitudinally elongated
channel 150. In some embodiments, the insert 100 is affixed to the
metal reinforcing bars 210 by wrapping the void former 110 and
bracketing metal reinforcing bars 210 with wire (not shown), for
example in an X-shaped pattern spanning the neck-facing end 144 and
opposite end of the channel portion 140, crossing itself midway
along the longitudinally elongated channel 150 on the lateral sides
of the channel portion 140. Preferably, the metal reinforcing bars
210 are received within a plurality of clips 145 projecting
outwardly from the channel portion 140. Each metal reinforcing bar
210 is thus clipped between a bearing surface 143 in the channel
portion 140 and one or more clips 145 on each side of the channel
portion 210. The metal reinforcing bars 210 may be positioned
within surrounding concrete forms, e.g., opposing wall forms 220
(only one of which is shown), and with the channel 150 of the
insert 100 at a depth "D" below the planned surface of the
concrete--which may be formed by a cap form or, as indicated in the
illustration, a free surface of the concrete "S". The removable cap
170 ends up proximate the free surface of the concrete 230, and may
be located by identifying the edges of the neck portion 120
proximate the cap, by identifying the cap itself if visible, by
striking the set concrete over the cap (which, being at most a thin
layer over the non-metallic void former 120, is likely to fracture
and chip), or by locating upwardly projecting whiskers 176 located
on or near the removable cap 170. The removable cap 170 may
subsequently be removed to expose the metal nut for connection to a
threaded bolt or threaded-bolt-type connection.
[0019] In another use, an example of which is shown in FIG. 4, a
formwork 300 may include an insert 100 and at least one support
member, such as the previously illustrated wall form 220 or the
illustrated support member 230. The insert 100 is secured directly
to the member 230, with the neck portion 120 opposite the channel
portion 140 positioned against the forming surface. In one
embodiment, the insert is secured directly to the member 230 using
a plurality of fasteners 240 inserted through one or more
outwardly-projecting tabs 125, as described above. The elongated
longitudinal slot 130 may be substantially sealed from exposure to
concrete by the fit of the neck portion 120 against the member 230,
by a removable cap 170, or by other means for forming a seal such
as a gasket, a caulk, a putty, a highly viscous grease or gel, etc.
As shown in FIG. 3 and/or discussed above metal reinforcing bars
210 could also be secured to the insert 100 to reinforce the
positioning of the insert and/or to position the metal reinforcing
bars 210 at a definite location within the formwork 300. The neck
portion 120 opposite the channel portion 140 ends up proximate the
formed surface of the concrete, and may be located by identifying
the edges of the neck portion 120 and/or the elongated longitudinal
slot 130 opening at the formed surface, by identifying any
removable cap 170 provided, by striking any concrete skin formed
upon the removable cap, etc. The slot opening to the metal nut 160
may then be used for connection to a threaded bolt or
threaded-bolt-type connection.
[0020] Having described the invention in detail and by reference to
the preferred embodiments, it will be apparent that modifications
and variations thereof are possible without departing from the
scope of this disclosure.
* * * * *