U.S. patent application number 12/217673 was filed with the patent office on 2009-01-08 for internally colored block and process.
Invention is credited to Deborah Elliott, John McCoy.
Application Number | 20090007510 12/217673 |
Document ID | / |
Family ID | 40262032 |
Filed Date | 2009-01-08 |
United States Patent
Application |
20090007510 |
Kind Code |
A1 |
McCoy; John ; et
al. |
January 8, 2009 |
Internally colored block and process
Abstract
Internally colored glass and glass-like blocks (10) and the
method for making them. No means for coating the internal cavities
(26) of clear glass and glass-like hollow blocks has been
available. Color coating provides aesthetically pleasing
structures. Internally colored glass and glass-like blocks may be
used in building internal room dividers, providing colorful
building designs and for providing color relief in heretofore
otherwise drab structures.
Inventors: |
McCoy; John; (Riverside,
CA) ; Elliott; Deborah; (Riverside, CA) |
Correspondence
Address: |
Paul H. Ware
8910 - 2nd Avenue
Inglewood
CA
90305
US
|
Family ID: |
40262032 |
Appl. No.: |
12/217673 |
Filed: |
July 9, 2008 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
10500442 |
Jun 29, 2004 |
7413773 |
|
|
12217673 |
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Current U.S.
Class: |
52/306 |
Current CPC
Class: |
E04B 5/46 20130101; E04C
1/42 20130101 |
Class at
Publication: |
52/306 |
International
Class: |
E04C 1/42 20060101
E04C001/42 |
Claims
1. A block comprising: a hollow, light transmissive cavity; and an
internal coating inside said cavity.
2. A block in accordance with claim 1 wherein said cavity is
translucent.
3. A block in accordance with claim 2 wherein said internal coating
is colored.
4. A block in accordance with claim 3 wherein said internal coating
is permanently bonded.
5. An internally colored block of glass-like material comprising: a
hollow light transmissive cavity; and an internal coating inside
said cavity.
6. The block of claim 5 wherein said glass-like material is
glass.
7. The block of claim 6 wherein said cavity is translucent.
8. The block of claim 7 wherein said internal coating is
colored.
9. The block of claim 8 wherein said internal coating is
permanently bonded.
10. A hollow glass block having an internal coating inside.
11. A block as in claim 10 further characterized in that said
internal coating is colored.
12. A block as in claim 11 further characterized in that said
coating is permanently bonded.
13-19. (canceled)
Description
CROSS REFERENCE
[0001] This application is a divisional of U.S. application Ser.
No. 10/500,442, filed Jun. 29, 2004, which is hereby incorporated
by reference.
TECHNICAL FIELD
[0002] This invention relates to internally colored glass-like and
glass blocks and the process employed by the methods of the
invention to create that internal coloring while retaining the
inherent outer sheen and finish of the original glass-like block
workpiece. In the process employed by the invention, the structural
integrity of the blocks is preserved. The term "glass-like" is
defined to include glass and other materials which may have light
transmissive qualities.
BACKGROUND ART
[0003] The relevant prior art includes U.S. Pat. No. 595,485, to
Charles R. Lamb for Mosaic Tile issued Dec. 14, 1897. The article
of manufacture described in the Lamb patent represents an early
attempt to provide a decorative glass structure adapted for mosaic
work. The structure as described by Lamb may comprise two
transparent glass plates having interposed therebetween a layer of
metallic foil and being subsequently bonded by heat treatment so as
to be practically inseparable. The inventor herein suggests that an
ordinary glazier's diamond can be employed to subdivide the
structure so formed into shapes and sizes as desired by the user
thereof.
[0004] Another prior art U.S. Pat. No. 2,086,185, was issued to
Joseph C. Keaney and dated Jul. 6, 1937, for Building Block. A
stated primary object of the patent to Keaney is to provide a
hollow glass building block adapted to be formed in automatic glass
blowing machinery. The inventor noted the practice of the day to
form a structural glass building block by the method of molding two
semicubical shells of glass and then bonding the shells together to
form a complete block. Keaney's block is formed integrally in glass
blowing machinery.
[0005] Additionally, U.S. Pat. No. 2,167,764 was patented on Aug.
1, 1939 for Glass Building Block for inventor William, O. Lytle.
Lytle's patent describes a transparent sheet of synthetic resin
situate between the usual opposing rectangular cup shapes making up
a structural glass building block such that the resin provides
increased structural strength, greater resistance to the passage of
radiant heat and acts as a seal, strongly adherent to glass under
heat and pressure, for the opposing edges of the half sections of
the block. The inventor further suggests that the resin sheet may
be colored so as to cut out part of the light or for decorative
purposes in which case it may be printed with designs.
[0006] Yet another prior art U.S. Pat. No. 2,261,011 was issued on
Oct. 28, 1941 to Otis W. Wiley for Building Block. The patent to
Wiley relates primarily to the manufacture of hollow glass building
blocks having a fusible screen disposed between the edges of the
members forming the block, the screen becoming a permanent part of
the completed block upon being fused therebetween by heat
treatment.
[0007] Of somewhat lesser relevance to the instant invention are
the U.S. Pat. Nos. 3,954,326, issued May 4, 1976 to Michaelis for
Translucent Building Blocks and 5,038,542 to inventor Kline on Aug.
13, 1991 for Architectural Building Block Herewith.
[0008] The patent to Michaelis describes a hollow, translucent
building block partially filled with a transparent liquid and with
an oblique wall inserted in such manner as to give rise to the
visual effects sought by the invention through the optical
phenomenon of total internal reflection.
[0009] The building block specified by Kline describes an injection
molded plastic block structure featuring snap lock connectors to
provide even spacing between blocks when assembling a structure
made up of a plurality of such blocks. The plastic blocks are
claimed to resemble common glass blocks and additionally to provide
for tinting by the introduction of tinting materials into the
molding resin either prior to or during the molding process. Kline
describes various decorative implementations in connection with
this patented invention.
[0010] A final prior art patent discovered in applicant's
pre-examination novelty search is U.S. Pat. No. 5,160,566, granted
to Ashby et al. on Nov. 3, 1992 for Decorative Glass Block. Ashby
et al. describe a scheme by means of which a decorative panel
insert may be interposed between the two adjoined half members
through a slot cut into and extending from the top of one vertical
side wall of the glass block to the opposite vertical side wall.
Subsequent to insertion, the panel is cemented to the bottom
interior surface of the of the glass block and the slot is sealed
over.
[0011] These prior art articles and their methods are commendable
and show a creative spirit for their times. The quest for relieving
the monotony of clear glass blocks has been long and varied and
many creative ideas have been contrived. The originators and their
methods have contributed remarkably to the technology involved.
These prior art structures, however, do not include those elements
of the instant invention that provide a long felt but unmet need in
the art.
DISCLOSURE OF INVENTION
[0012] In accordance with the instant invention, there is provided
a method for internally coloring heretofore clear, hollow
structural glass-like blocks. Vibrant and exciting colors may be
attained over a variety of tints and shades through implementation
of the process presented. Structural designs using the colored
glass-like building blocks provided by means of the benefits
presented by the instant method are limited only by the imagination
and creativity of the user.
BRIEF DESCRIPTION OF DRAWINGS
[0013] Further advantages and features of the instant invention
will be more fully apparent to those skilled in the art to which
the invention pertains from the ensuing detailed description
thereof regarded in conjunction with the accompanying drawings
wherein like reference numerals refer to like parts throughout and
in which:
[0014] FIG. 1 is a perspective view of a conventional hollow
glass-like building block as contemplated by the method of the
instant invention.
[0015] FIG. 2 is a vertical cross section of one of the half
members forming one side of a conventional hollow glass-like
building block as contemplated by the instant invention.
[0016] FIG. 3 is a vertical cross section of a conventional hollow
glass-like building block showing the joining of the two half
members to form the block.
[0017] FIG. 4 is a vertical cross section of a conventional hollow
glass-like building block showing the residue attendant to the
drilling of the block.
[0018] FIG. 5 is a vertical cross section of a conventional hollow
glass-like building block showing the coloring agent material
introduced into the block.
[0019] FIG. 6 is a vertical cross section of a conventional hollow
glass-like building block showing the coloring agent material
introduced into the block and forming an internal coating.
BEST MODE FOR CARRYING OUT THE INVENTION
[0020] Referring to the drawing and to FIG. 1 with greater
particularity the hollow glass-like building block is denoted
generally by the numeral 10 and comprises a top side wall 12 and a
lateral side wall 14. A peripheral sealing seam 16 operates to
adjoin the two halves of the building block. Holes 24 are drilled
in diametrically opposed corner side wall portions of the hollow
block, the purpose for which will be made clear in what
follows.
[0021] Referring now to FIGS. 2 and 3 the numeral 18 denotes the
outer face panels of the hollow block, that is, the part of the
block that is most often presented to view while numeral 20 denotes
a half member generally. Edges 22 of two half members 20 are joined
together to form the block as shown in cross section in FIG. 3,
thus creating the internal sealed chamber or interior cavity 26.
The internal sealed chamber 26 is a hollow, light transmissive
cavity which may be translucent and is the element of the hollow
glass-like block 10 into which a coloring agent is introduced to
form an internal, permanently bonded coating in accordance with the
invention through holes 24, wherein one of holes 24 is used for the
introduction of a coloring agent material 32 and its diametrically
opposed hole 24 allowing air to enter for convenient egress of that
material, see FIGS. 4-6.
[0022] More explicitly and for the purpose of presenting a working
example, in practicing the process specified herein, two holes 24
are drilled in diametrically opposed side wall corners of a
conventional hollow glass block 10. With reference to FIG. 4, any
residue 28 attendant to the drilling is removed from the interior
chamber or interior cavity 26 of the block. This residue 28 has
been removed by rinsing with water and then drying or allowing to
dry. Into one of these holes 24 oriented at the top side wall of
the block 10 is introduced a permanently bonding coloring agent
material 32, preferably a liquid and preferably by pouring, FIG. 5.
The holes 24 are temporarily sealed or plugged 36 so as to retain
the permanently bonding coloring agent material 32 in the cavity
26. The block 10 is then rolled about or rotated so as to cover all
sides of the interior chamber or cavity 26 with the coloring agent
material 32 and then emptied of the coloring agent material,
forming an internal coating 40 therein, FIG. 6. If both holes 24
are unsealed or unplugged the coloring agent material 32 is easily
emptied or expelled from the cavity 26 through one of the holes 24.
The block may be oriented so as to facilitate the draining of any
excess coloring agent material 32. After a drying period, the holes
24 are permanently sealed 44 by filling with a silicone sealant or
the like.
[0023] Further to the presentation of this working example,
suitable coloring agent materials have been determined empirically.
Examples of these materials as described below are not intended to
be exclusive but merely indicative of coloring materials which have
been found by experiment to be satisfactory in the practice of the
method of the invention.
[0024] For light blue, green magenta, red, goldenrod, purple and
orange a mixture of eight (8) parts clear, two (2) parts catalyst
and one (1) part colorant has been determined to work well. While
for dark blue we have used eight (8) parts clear, two (2) parts
catalyst and two (2) parts colorant. Of course, as is obvious, in
order to obtain varying hues, somewhat more or somewhat less
colorant may be utilized.
[0025] In order to form a permanently bonding, hard, thin coating,
we blended the clearcoat with the colorant before adding the
catalyst hardener.
[0026] The term "clear" denotes a generic acrylic urethane
clearcoat obtainable under the tradename SUNFIRE.RTM. from
SHERWIN-WILLIAMS AUTOMOTIVE FINISHES CORP.
[0027] The term "catalyst" as used herein refers to a generic
hardening and drying agent well known in the automotive finishes
art and obtainable under the tradename SUNFIRE CLEAR HARDENER.RTM.
from SHERWIN-WILLIAMS AUTOMOTIVE FINISHES CORP.
[0028] The colorant materials used in our experiments in practicing
the invention include the materials identified by specification
numbers:
[0029] Number F6L1118 by SHERWIN WILLIAMS.RTM. for blues;
[0030] Number F6G1111 by SHERWIN WILLIAMS.RTM. for greens;
[0031] Number 3128 California Gold by SEM.RTM. for goldenrod;
[0032] Number 3118 Candy Apple Red by SEM.RTM. for red;
[0033] Number 3088 Mandarin by SEM.RTM. for orange;
[0034] Number 3018 Winefire by SEM.RTM. for magenta; and
[0035] Number 3108 Passion Purple by SEM.RTM. for purple.
[0036] SHERWIN-WILLIAMS.RTM. and SEM.RTM. are identified and
located as:
[0037] Sherwin-Williams Automotive Finishes Corp.
[0038] 101 Prospect Ave. N.W.
[0039] Cleveland, Ohio 44115
[0040] United States of America
[0041] SEM PRODUCTS, INC.
[0042] 651 Michael Wylie Dr.
[0043] Charlotte, N.C. 28217
[0044] United States of America
[0045] It is to be emphasized that these described coloring
materials and colorants are exemplary only and not intended as
limitations on the methods of the invention.
INDUSTRIAL APPLICABILITY
[0046] The present invention finds application wherever glass-like
building blocks are used in building construction or otherwise for
decorative purposes and to relieve the tedium and monotony
associated with colorless materials.
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