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Патент USA US3027180

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March 27, 1962
c. M. .JORGENSEN
3,027,170
wlRE HOLDER
Filed May 1s, 1960
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ATTORNEYS.
United ätates Patent Office
3,027,170
Patented Mar. 27, 1962
l
2
3,027,170
frusto-conical in shape and merges at its smaller end with
front portion 24. At its rear end, nose 20 is provided
with a ring 26 which defines an opening only slightly
WIRE HOLDER
Carther M. Jorgensen, 2304 Henley St., Glenview, lll.
Filed May 13, 1964), Ser. No. 28,923
7 Claims. (Cl. 279-22)
This invention relates to a Wire holder, and more
specifically, to a handle equipped with retaining means
for releasably holding a wire element such as a wire
inoculating loop.
A main object of the present invention is to provide
a thin pencil~like holder of simple and durable construc
tion adapted for releasably holding wire elements such as
larger than the diameter of shaft portion 16. Thus, the
opening delined by the ring is substantially smaller than
the maximum internal diameter of the nose. The ring
may be held in place by a retaining bead 26a or by any
other suitable means or may, if desired, be formed in
tegrally with the nose cap.
Locking ball 19 is of greater diameter than the radius
of the reduced front portion 16 of handle shaft 14. As
a result, the smooth outer surface of the locking ball
projects beyond the periphery of the cylindrical front por
inoculating loops. Another object is to provide a wire
tion 16 even when wire element 11 is removed from the
holder which may be readily manipulated to release or 15 holder. Consequently, the ring 26 is incapable of clear
grip an end portion of a wire element. A further object
ing the locking ball and serves as a stop for limiting the
is to provide a holder having relatively few elements which
extent of forward movement of the nose cap.
are structurally interconnected so that they cannot become
With ring 26 in contact with locking ball 19, the nose
separated and lost.
cap is in releasing position. Ball 19 may be moved out
Other objects will appear from the specification and 20 wardly away from bore 15v as wire 11 is urged there
drawings in which:
through and the wire element may thus be easily with
FiGURE l is a perspective view of a wire holder em
bodying the present invention;
drawn from or inserted into the bore.
To secure the
wire element in place, the nose cap is simply pulled rear
FIGURE 2 is an enlarged exploded and broken lon
wardly into locking position, the sloping interior sur
gitudinal sectional view illustrating the various elements 25 faces of the nose cap bearing ñrmly against the ball to
of the combination shown in FlGURE 1;
urge it inwardly into tight contact with that portion of
FIGURE 3 is an enlarged broken longitudinal sectional
the shank of .the wire element passing through the base of
view similar to FIGURE 2 but showing the parts in as
opening lâ. Therefore, locking ball 19 performs dual
functions: it cooperates with the tapered internal surfaces
sembled condition;
FIGURE 4 is a still further enlarged cross sectional 30 of the nose cap to lock a wire element in position and it
View taken along line 4~4 of FÍGURE 3.
also cooperates with the stop ring 26 to limit the extent
ln the embodiment of «the invention illustrated in the
of axial movement of the nose cap into releasing position.
drawings, the numeral 10 generally designates a holder
While in the foregoing I have disclosed an embodiment
for gripping a wire element 11. In 'the illustration given,
of the invention in considerable detail for purposes of
the wire element is provided with a straight shank por 35 illustration it will be understood by those skilled in the
tion 12 and a closed loop 13 at one end thereof. Such
art that many of these details may be varied considerably
an element is commonly referred to as an “inoculating
without departing from the spirit and scope of the inven
loop” and is usually formed from platinum `or some other
tion.
durable metal which may be sterilized by flame. “Dura
I claim:
1. A wire holder comprising an elongated shaft hav
bility” for such use is only relative, however, and even a 40
platinum element will not last indefinitely. Thus, the
ing an axially-extending bore at one end thereof for receiv
wire element must be releasable from the holder for re
ing the end of a wire, said shaft being provided with a
placement by a new element, or for interchanging ele
transversely extending opening intersecting said bore, a
ments of different shapes, cleaning or repairing elements,
locking element received within said opening for inward
or any other reason.
Holder 10 essentially comprises an elongated cylindrical
handle shaft 14 having a thin axial bore 15 at one end
and outward movement therein, and a cap having a frusto
conical inner surface and being axially slidable along the
end portion of said shaft, said cap having its inner surface
engageable with said locking element for urging the same
inwardly as said cap is moved axially in one direction,
thereof for receiving a portion of wire element 11. Pref
erably, the end portion 16 is of smaller external diameter
than the remainder of the handle shaft. The cylindrical 50 said cap having a front end in front of the forward end
surface of the front end portion 16 -merges smoothly
of said shaft provided with a narrow aperture therein in
with the surface of the shaft disposed therebehind by
communication with said bore and having an open rear
means of frusto-conical intermediate portion 17.
end, and an annular stop member provided by said cap
As shown most clearly in FIGURES 2 and 4, the front
adjacent the open rear end thereof for engagement with
portion 16 of the shaft is provided with a transverse or 55 said ball and for limiting `the extent of forward movement
radial opening 18 which communicates with bore 15 and
of said cap.
which receives a locking ball 19. The locking ball is
2. The structure of claim 1 in which said locking ele~
freely movable in inward and outward directions within
ment comprises a ball of greater diameter than the radius
the radial opening and is capable of projecting into bore
of said shaft adjacent said transverse opening.
15 to engage an inserted wire element 11 and to prevent 60
3. The structure of claim 1 in which said end portion
axial movement thereof, as will be brought out herein
of said shaft is cylindrical in shape and is of smaller di
after.
ameter than the remainder of the shaft.
4. A wire holder comprising an elongated handle hav
'Ihe third element of the holder structure, the nose
cap 2i), is cylindrical in shape and is provided with a
ing an axial bore at one end portion thereof for receiv
tapered chamber ‘Z1 for receiving the front portion of the 65 ing an end of a wire, said handle being provided with a
handle shaft. The nose cap is provided with a front
radially extending opening communicating with but not
crossing through said bore, a locking ball received within
wall 22 having a central aperture 23 axially aligned with
said opening for radial movement therein, and a nose
bore 15 of the shaft.
cap extending over and being axially slidable along the
The chamber 21 of the nose cap 20 has front and rear
portions 24 and 2‘5. Front portion 24 is cylindrical in 70 end portion of said handle and having a tapered inner
surface engageable with said ball for urging the same
shape, having a diameter only slightly greater than the
radially as said cap is moved axially, said cap having a
diameter of shaft portion 16. The rear portion 25 is
3,627,170
3
front end provided with a narrow aperture communicat
ing with said bore and having an open rear end, and an
annular stop member provided by said cap adjacent the
lopen rear end thereof for engagement with said ball and
for limiting the extent of forward movement of said cap.
5. The structure of`claim 4 in which said ball has a. di
ameter greater than the radius of the end portion of said
handle.
A'6. A Wire holdertcomp'rising an elongated handleV shaft
lhaving an axial ybore and having a radially extending open 10
ing .c‘ommunicating'with said bore, a locking ball received
within said opening for radial movement therein, and a
.sleeve being axially slidable along an end portion said
shaft and having a tapered inner surface engageable
with said ball for urging the same radially within said 15
¿i
opening, said sleeve having at least one end thereof pro
vided With an annular stop element engageable with said
ball for limiting the extent of axial movement of said
sleeve towards the end of said shaft.
7. The structure of claim 6 in which said annular stop
element comprises a ring defining an opening slightly larg
er in diameter than said handle for slidably receiving said
handle shaft therein.
References Cited in the file of this patent
UNITED STATES PATENTS
1,089,755
2,569,616
Fischer ______________ _.. Mar. 10, 1914
Mann ________________ -_ Oct. 2, 1951
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