U.S. patent number 3,643,358 [Application Number 04/751,678] was granted by the patent office on 1972-02-22 for identification structure.
Invention is credited to Lawrence D. Morderosian.
United States Patent |
3,643,358 |
Morderosian |
February 22, 1972 |
IDENTIFICATION STRUCTURE
Abstract
An identifying system for objects made from metal utilizing
indicia selected from material having a substantially different
radiation absorption coefficient and melting temperatures higher
than the melting point of the object to permit identification by
radiographic techniques.
Inventors: |
Morderosian; Lawrence D.
(Grosse Pointe Park, MI) |
Family
ID: |
25023020 |
Appl.
No.: |
04/751,678 |
Filed: |
July 25, 1968 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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517695 |
Dec 30, 1965 |
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Current U.S.
Class: |
40/629; 283/70;
378/165; 40/912; 283/100; 283/901 |
Current CPC
Class: |
G09F
3/00 (20130101); Y10S 40/912 (20130101); Y10S
283/901 (20130101) |
Current International
Class: |
G09F
3/00 (20060101); G09f 003/02 () |
Field of
Search: |
;250/59,67 ;283/7
;40/2.2 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Schnall; Jerome
Assistant Examiner: Contreras; Wenceslao J.
Parent Case Text
This is a continuation of my application Ser. No. 517,695 filed
Dec. 30, 1965 and which is now abandoned.
Claims
I claim:
1. An identification structure for an object to be identified
comprising identification means for permitting identification
comprising identifying symbols, said identification means made of a
first material having a higher melting point than the material of
the object to be identified with said first material having a
substantially different radiation absorption coefficient, said
identification means being surrounded by the material of the object
to be identified with said symbols being defined by said first
material and the material of the object whereby said symbols can be
detected by radiographic techniques, and with said identification
means comprising a tag member with said symbols constructed of said
first material and a body member retaining said symbols, said body
member being constructed of a second material which vaporizes at
the melting point of the material of the object whereby said body
member is not present as a part of said identification means after
the object is formed.
2. The structure of claim 1 with said first material being a metal
and with said material of said object being a metal cast about said
identification means.
3. The structure of claim 2 with said object to be identified being
a substantially permanent part of a vehicle whereby a substantially
permanent identification of the vehicle is provided.
4. The structure of claim 3 with said object being the engine
block.
Description
The present invention relates to identification constructions for
identifying selected objects.
In the identification of automobile engines and other parts,
identification numbers are cast in the engine block or otherwise
mounted on the surface. These identification numbers are readily
locatable and can be easily changed or removed thereby destroying
the means for identifying that particular object. This is
especially significant when considering the ease with which such
identification numbers, etc., can be changed upon stolen
automobiles, etc. It is desirable that an identification
construction be provided which is of a nature whereby it cannot be
destroyed or altered. The need for such an identification
construction is also present with firearms. Again, it would be
highly desirable that an identification construction be provided
which cannot be altered or destroyed. In the present invention an
identification construction is shown which cannot be altered and in
fact does not permit detection by normal, visual means where it
could be located and altered or destroyed. Also, it is of such a
nature that to destroy the identification would require the
destruction of an integral part of the object being so identified.
Therefore, it is an object of the present invention to provide a
novel identification construction for selected objects.
It is another object of the present invention to provide a novel
identification construction for identifying selected objects which
construction cannot readily be altered or destroyed.
It is still another object of the present invention to provide an
identification construction which cannot be located by simple
visual observation and is completely embedded in the object being
identified whereby it cannot be readily altered or destroyed.
Other objects, features, and advantages of the present invention
will become apparent from the subsequent description and the
appended claims, taken in conjunction with the accompanying
drawings, in which:
FIG. 1 is a perspective view of an identification construction
embodying the features of the present invention with the object to
be identified shown in phantom;
FIG. 2 is a sectional view of the identification construction of
FIG. 1 taken substantially along the line 2--2 in FIG. 1 with the
object to be identified shown in solid lines;
FIG. 3 is a sectional view similar to that of FIG. 2 of a
modification of the identification construction of FIG. 1;
FIG. 4 is a perspective view of a still different identification
construction;
FIG. 5 is a sectional view of the identification construction of
FIG. 4, taken substantially along the line 5--5 in FIG. 4;
FIG. 6 is a sectional view similar to FIG. 5 depicting a still
different embodiment; and
FIG. 7 is a perspective view depicting another form of the
invention.
In the past, identification tags have been constructed to be
mounted or supported on the member or object to be identified and
are visually observed. Likewise identifying symbols or numbers
which are cast in the surface can be visually observed. In the
present invention the identification construction is such that the
identifying tag is completely embedded such that it cannot be
observed visually. With this construction the serial number or
other identifying symbols can be detected only by radiographic
technique utilizing X-ray, gamma rays or other type radiation
devices which are capable of penetrating through the material of
the object to be identified. In the case of a cast iron engine
block, it is contemplated that the identifying tag be made of
tungsten or some other material having a higher melting point than
that of the cast iron. For objects made of materials other than
cast iron, materials other than tungsten for the identification tag
could be utilized provided that the material of the tag will not
melt at the melting temperature of the material of the object being
identified. In addition since the identification symbol is to be
ascertained by radiographic techniques, it is important that the
material of the identification tag have a substantially different
absorption coefficient in order that detection may be accomplished
by X-ray or other radiation techniques; for purposes of simplicity
this characteristic will be referred to as radiation absorption
coefficient.
Looking now to FIG. 1, an identifying tag is generally indicated by
the numeral 10 and is shown to be completely embedded in an object
generally indicated by the numeral 12. The tag 10 is made of a
solid block of material with numbers designated by the numerals 14,
16 and 18, being cut therethrough. In the embodiment of FIG. 1, the
numerals 14, 16 and 18 are cut completely through the thickness of
the material of the tag 10 such that upon pouring of the material
of the object 12, that material will pass through the openings
caused by the cutout portions of numerals 14, 16 and 18 (see FIG.
2). Thus upon identification radiographic equipment will detect the
difference in the radiation absorption coefficient of the material
which is then located in the voids of the numerals 14, 16 and 18 as
compared to the material of the remaining surrounding portion of
the tag 10 whereby a radiograph or film can be provided which will
clearly provide the image of numerals 14, 16 and 18 and hence give
a means of identifying the serial number of the tag 10.
In FIG. 3 a different embodiment is shown in which an
identification tag 20 is provided for use with an object 22 to be
identified. In this case the numbers indicated by numerals 24, 26
and 28 are indented within the body of the tag 20 thereby providing
for a substantially lesser thickness of the material outline the
numerals 24, 26 and 28. Upon casting the body 22, the material
therein will generally flow to fill the voids or recesses of the
numerals 24, 26 and 28 and because of the disparity in thickness
between the numerals and the remaining portions of the tag 20, the
numerals 24, 26 and 28 can be discerned by radiographic
techniques.
FIGS. 4 and 5 show an embodiment which is generally opposite to
that shown in FIG. 3, rather than having the numerals depressed, a
tag 32 is shown having numbers indicated by numerals 34, 36 and 38
which are embossed or substantially raised from the surrounding
surface of the tag 32 and hence upon being cast and completely
surrounded by the material of a part 42 to be identified, the
raised or embossed numerals 34, 36 and 38 will provide areas of
substantially greater thickness and will again provide means
whereby an image of the numerals 34, 36 and 38 can be obtained by
radiographic techniques. In some applications, it would be
desirable if only the numbers and substantially no other structure
were provided in the body of the object to be identified. Such a
construction is shown in FIG. 6 and includes an identification tag
40 composed of numbers indicated by numerals 44, 46 and 48 which
are held by a body member 47. The body member 47 is made of a
material which is vaporizable at the melting temperature of
material in which the tag 40 is to be embedded. Thus, as the
material of the object to be embedded is poured about the tag 40,
the body 47 will vaporize and leave behind the numerals 44, 46 and
48 such that only the numerals 44, 46 and 48 will remain in the
object to be identified. Note that the numerals 44, 46 and 48 are
held together only by the body member 47 after body member 47 has
vaporized the numerals 44, 46 and 48 are separated from each
other.
FIG. 7 shows a still different form of identification tag being
designated by the numeral 50 and includes a plurality of formed
numbers indicated by the numeral 54, 56 and 58, which are held
together by a holding bar 57, which is made of the same material as
the numerals 54, 56 and 58. Again, by molding the material of an
object to be identified about the tag 50, positive identification
can be obtained because of the differences in radiation absorption
coefficient, etc., of materials by radiographic techniques. Note
that as a further modification the tag 50 could be initially held
within a vaporizable body such as 47.
It can be readily seen that by employment of the various
identification structures as shown and by completely embedding the
identification tags within the material of the object to be
identified, the identification numbers or designations are
permanently secured to the object to be identified and cannot be
altered or destroyed. Also, the location of the identification tags
is not readily apparent and hence lends itself to the concealment
from individuals who would change such identifications. With this
type of identification construction, more than one could be located
in the object to be so identified, and hence provide even further
protection from discovery and hence destruction. By use of the
above-described identification construction, identification of
engine blocks, firearms, etc., would be substantially permanently
retained. Of course, the invention is equally applicable to other
objects to be thus permanently identified.
While it will be apparent that the preferred embodiments of the
invention disclosed are well calculated to fulfill the objects
above stated, it will be appreciated that the invention is
susceptible to modification, variation and change without departing
from the proper scope or fair meaning of the subjoined claims.
* * * * *