U.S. patent number 3,828,391 [Application Number 05/271,376] was granted by the patent office on 1974-08-13 for tackless carpet stripping.
This patent grant is currently assigned to Performance Industries Inc.. Invention is credited to Kenneth E. Hewson, Carl P. Ranno, Lawrence R. Sutton.
United States Patent |
3,828,391 |
Sutton , et al. |
August 13, 1974 |
TACKLESS CARPET STRIPPING
Abstract
A tackless carpet stripping for attaching carpet or the like to
a floor in a room wherein the stripping is fastened to the floor
along the peripheral edge of the floor adjacent the walls of the
room. The tackless carpet stripping is a one-piece integrally
molded structure having an elongated member with its lower surface
positioned on the floor and fastened thereto by means of nails or
the like. The upper surface of the elongated member has a plurality
of integral sharp-ending holding members projecting toward the wall
at an angle inclined with respect to the upper surface of the
elongated member. In the preferred embodiment the stripping has a
plurality of regularly spaced apertures extending from the upper to
the lower surface of the elongated member and is fabricated from a
plastic material, such as polystyrene.
Inventors: |
Sutton; Lawrence R. (Detroit,
MI), Ranno; Carl P. (Grosse Pointe Park, MI), Hewson;
Kenneth E. (Farmington, MI) |
Assignee: |
Performance Industries Inc.
(Pontiac, MI)
|
Family
ID: |
23035296 |
Appl.
No.: |
05/271,376 |
Filed: |
July 13, 1972 |
Current U.S.
Class: |
16/16; 428/134;
D8/389 |
Current CPC
Class: |
A47G
27/0462 (20130101); Y10T 428/24298 (20150115); Y10T
16/131 (20150115) |
Current International
Class: |
A47G
27/00 (20060101); A47G 27/04 (20060101); A47g
027/04 () |
Field of
Search: |
;16/16,4,7,8,5,6,10
;264/318 ;52/179 ;85/13 ;D8/266,270 |
References Cited
[Referenced By]
U.S. Patent Documents
Other References
"E-Z Lay" Advertisement, Dec. 4, 1953..
|
Primary Examiner: Gay; Bobby R.
Assistant Examiner: Dorner; Kenneth J.
Attorney, Agent or Firm: Weiner, Basile and Weintraub
Claims
What is claimed is as follows:
1. A tackless carpet stripping for attaching carpeting to a floor
in a room wherein the stripping is normally fastened to the floor
along the peripheral edges thereof and adjacent the walls of said
room, said stripping comprising:
an elongated member of a predetermined length, a lower surface
thereof being positioned on said floor along said peripheral
edge;
means for fastening said elongated member to said floor at said
last-mentioned position;
a plurality of longitudinally-spaced, sharp-ended holding members
carried on the upper surface of said elongated member and
projecting therefrom at an angle inclined with respect to said
upper surface; said holding members projecting toward said adjacent
wall when said stripping is fastened to said floor, said holding
members being integrally-formed projections of said elongated
member, and alternately spaced on opposite sides of said member
along the longitudinal length thereof, said tackless carpet
stripping further comprising a plurality of spaced apertures in
said elongated member, said apertures extending from said upper to
said lower surface said holding members being centrally located
between each successively spaced aperture, said holding members
being spaced apart and non-contiguous with the apertures, said side
walls of said elongated member connecting said upper and lower
surfaces are disposed in planes which are inclined with respect to
said upper and lower surfaces and project toward said wall when
said stripping is attached to said floor; the walls of said
apertures being disposed in planes which are inclined with respect
to said upper surface, said walls of said apertures and side walls
being parallel and said holding members beng inclined generally in
the same direction as said walls of said apertures.
2. The tackless carpet stripping as defined in claim 1 wherein said
elongated member and said integrally-formed holding members are
fabricated from a material selected from the group consisting of
plastic, polyurethane, polyethylene, polyester, polyether, polyreas
and polystyrene.
3. A tackless carpet stripping for attaching carpeting to a floor
in a room wherein the stripping is normally fastened to the floor
along the peripheral edges of the room and adjacent the walls of
said room, said stripping comprising:
an elongated member of a predetermined length having longitudinal
side edges connected by transverse end walls, the lower surface of
said elongated member being positionable on said floor and adapted
to be fastened to said floor;
A plurality of end to end inclined web members extending between
said side edges, each web member traversing a longitudinal axis of
said elongated member and extending between the opposing
longitudinal side edges of said stripping to define between
successively spaced web members a triangularly shaped aperture
having a base parallel to one longitudinal side edge of said
elongated member, apex of said aperture opposite said base being
inwardly spaced from the other longitudinal side edge of said
elongated member;
A plurality of longitudinally spaced, sharp-ended holding members
carried on the upper surface of said elongated member and
projecting therefrom at an angle inclined with respect to said
upper surface, said sharp-ended holding members being located on
said upper surface of said elongated member between the apex of
said triangularly shaped aperture and said other longitudinal side
edge.
4. The tackless carpet stripping defined in claim 3 wherein aid
holding members are integrally formed projections of said elongated
member.
5. The tackless carpet stripping defined in claim 4 wherein said
elongated member and said integrally formed holding members are
fabricated from a material selected from the group consisting of
plastic, polyurethane, polyethylene, polyester, polyether, polyreas
and polystyrene.
6. The tackless carpet stripping defined in claim 4 wherein said
holding members are of a pyramid shape the axis of which is
inclined with respect to said upper surface of said elongated
member.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a means for fastening carpeting or
the like to a floor and, in particular, to tackless carpet
stripping of the type that is fastened to a floor and has sharp
upwardly projecting members that engage the undersurface of the
carpeting and retain the same in position.
2. Description of the Prior Art
Heretofore, numerous fastening devices have been employed for
attaching carpeting to a floor and tackless carpet stripping has
become the most common type of fasteners employed for installing
carpeting in both residential and commercial building. The
conventional tackless carpet generally comprises a strip of wood
approximately four feet in length, 1 inch in width and a quarter of
an inch in thickness with the bottom surface of the tackless carpet
stripping being positioned on the floor and fastened thereto by
nails driven through the wooden strip and into the floor. The upper
surface of the wooden strip is provided with a plurality of
sharp-edged nails or spikes that are driven from the underside of
the wooden strip and project above the outer side at an angle
inclined with respect to the upper surface of the wooden trip such
that the spikes project toward an adjacent wall when installed.
Although such wooden tackless carpet stripping is well known and
widely used and offers substantial advantages in the installation
of carpeting over older methods, this type of wooden strip
construction unnecessarily adds to the expense of carpet
installation as several steps are required in the fabrication of
the wooden tackless carpet stripping. In addition, during the
installation of the carpeting and, in particular, when nails are
driven through the wooden strips to attach the same to the floor,
the strips tend to split or crack causing the carpet installer to
replace the strip.
Therefore, it would be desirable to provide a new and improved
tackless carpet stripping which is simple and inexpensive to
fabricate and yet one which is durable and of high strength.
SUMMARY OF THE INVENTION
The present invention which will be described subsequently in
greater detail comprises a tackless carpet stripping comprising an
elongated member fabricated from synthetic material such as
polystyrene and having a plurality of regularly spaced integrally
formed projections extending upwardly from one surface thereof at
an angle inclined with respect to said last-mentioned surface, said
projecting members having sharp ends for engaging the underside of
a carpet and retaining the same in position.
It is therefore an object of the present invention to provide a new
and improved tackless carpet stripping fabricated from synthetic
material and being of an integral one-piece construction.
It is also an object of the present invention to provide a new and
improved tackless carpet stripping which is of a simpler and
inexpensive design and which is of great strength and
durability.
Other objects, advantages and applications of the present invention
will become apparent to those skilled in the art of tackless carpet
stripping when the accompanying description of one example of the
best mode contemplated for practicing the invention is read in
conjunction with the accompanying drawing.
BRIEF DESCRIPTION OF THE DRAWING
The description herein makes reference to the accompanying drawing
wherein like reference numerals refer to like parts throughout the
several views, and in which:
FIG. 1 is a fragmentary perspective view of a room having carpet
installed by means of a tackless carpet stripping constructed in
accordance with the principles of the present invention;
FIG. 2 is a top plane view of the tackless carpet stripping
illustrated in FIG. 1;
FIG. 3 is a fragmentary enlarged perspective view of the tackless
carpet stripping illustrated in FIGS. 1 and 2; and
FIG. 4 is an enlarged cross-sectional view of the tackless carpet
stripping taken along line 4--4 of FIG. 2.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawing, and in particular, FIG. 1 wherein
there is illustrated a fragmentary perspective view of a corner of
a room having a floor 10 and a pair of intersecting walls 12 and 14
which are disposed along the peripheral edge of a floor 10 in the
conventional manner. A plurality of end-to-end aligned tackless
carpet strippings 16 are illustrated as being fastened to the floor
10 along the peripheral edge thereof adjacent each of the walls 12
and 14, all of which will be described in greater detail
hereinafter. The tackless carpet strippings 16 are employed to
fasten a carpet 18 to the floor 10. As is conventional in carpet
installation, a floor padding (not shown) is disposed over the
floor 10 and nailed thereto with any suitable fasteners, such as
tacks and the like, with the peripheral edge of the padding
terminating at the tackless carpet strippings 16, the padding being
approximately the same thickness as the strippings 16. The
carpeting 18 has an area which is generally equal to that of the
floor and is positioned in such a manner that the undersurface of
the carpeting 18 is adapted to be engaged and retained in position
by the tackless carpet stripping 16 as will be described in greater
detail hereinafter.
Referring now to FIG. 2, 3 and 4 wherein there is illustrated in
greater detail a tackless carpet stripping 16 which comprises an
elongated base member 24 approximately 48 inches in length, 1 inch
in width and a quarter of an inch in thickness, having an upper
surface 26 and a lower surface 28 (FIG. 4), the latter surface 28
being adapted to be positioned on the floor 10 adjacent the walls
12 and 14 as aforementioned. The base member 24 is provided with a
plurality of regularly spaced, triangularly-shaped apertures 30
which extend completely through at an inclined angle from the upper
surface 26 to the lower surface 28 forming inclined web members 32
which interconnect successively disposed body portions 34 located
on the opposite sides of the base member 24 throughout the full
length thereof with the apex of each triangular aperture 30
terminating at a base portion 34. In the preferred embodiment the
aperatures 30 are approximately six-tenths of an inch apart as
measured along the longitudinal axis of the base member 24 and
three-tenths of an inch apart as measured across the web members
32; however, the exact dimensions disclosed may be varied.
As can best be seen in FIG. 3 and 4, the base member 24 has a
plurality of sharp-ended projections 36 extending outwardly from
the upper surface 26 of the base member 24 and inclined with
respect to the plane in which the upper surface 26 is disposed. The
sharp-ended projections 36 are successively disposed on the
opposite sides of the upper surface 26 at regularly spaced
intervals, that is, at the body portions 34 and adjacent the apex
of the triangularly-shaped aperture 30 associated with each body
portion 34. The projections 36 are spaced approximately 1.38 inches
from adjacent projections 36 on the same side of the base member 24
with the projections 36 on one side of the base member being
approximately 1/2 inch from the projections 36 disposed along the
opposite side of the base member 24.
The projections 36 are of a generally pyramid shape extending
approximately 1/4 of an inch above the upper surface 26, with the
rectangularly-shaped base of each projection 36 being approximately
one-tenth of an inch in width.
The tackless carpet stripping 16, that is, the base member 24, the
projections 36 and the apertures 30 are preferably formed by an
injection molding process resulting in an integral one-piece
construction. In the preferred embodiment, the tackless carpet
stripping 16 is fabricated from a polystyrene material. However,
other similar materials may be employed, such as polyester,
polyether, polyureas, and polyurethane.
As can best be seen in FIG. 4, the longitudinal side edges 40 and
42 of the base member 24 are disposed in parallel planes which are
inclined with respect to the upper and lower surfaces 26 and 28 and
generally project in the same direction as the inclined projections
36. This, in addition to the inclined walls of the apertures 30,
permits the forming of the base member 24 with sharp projections
while permitting an easy withdrawal of the formed stripping 16 from
the forming die.
In use the tackless carpet stripping 16 is positioned along the
peripheral edge of the floor 10 adjacent the walls 12 and 14 as
shown in FIG. 1, with the projections 36 pointing toward its
associated wall such that when a carpet installer stretches the
carpeting in a conventional manner and lays the peripheral edge of
the carpeting 18 over the upper surface 26 of the member 28, the
sharp-edge projections 36 will engage and securely grasp the under
side of the carpeting 18 and retain the carpeting in an installed
position as is conventionally done with the aforementioned wooden
strippings. Excess carpet extending over or beyond the strip 16
toward the wall is cut in the conventional manner. The apertures 30
permit the tackless carpet stripping 16 to be broken easily to
provide shorter lengths of stripping where needed to accommodate
varying lengths of walls along which the carpeting 18 is being
installed. When the tackless carpet stripping 16 is positioned
along the peripheral edge of the floor adjacent the walls 12 and
14, the strippings 16 are fastened to the floor 10 by any suitable
means, such as nails or tacks, which are driven through the web
portions 32 and into the floor 10. In the event the carpet
stripping 16 is to be employed in installing carpeting on a
concrete floor, the stripping may be attached to the concrete floor
either by a suitable adhesive or by concrete nails driven through
the stripping 16 and into the concrete flooring itself.
It can thus be seen that the present invention has provided a new
and improved tackless carpet stripping which has all of the
advantages of existing carpet strippings but, in addition, it is
much less expensive to manufacture, easier to use and more durable
in its construction and longer lasting in life.
Although only one embodiment of the present invention has been
disclosed, it should be understood by those skilled in the art of
tackless carpet stripping that other forms may be had all coming
within the spirit of the invention and the scope of the appended
claims.
* * * * *