U.S. patent number 3,608,561 [Application Number 05/003,090] was granted by the patent office on 1971-09-28 for extender means for attachment of an auxiliary cigarette filter.
This patent grant is currently assigned to The H-2-O Filter Corporation. Invention is credited to Mortimer Russel Dock.
United States Patent |
3,608,561 |
Dock |
September 28, 1971 |
EXTENDER MEANS FOR ATTACHMENT OF AN AUXILIARY CIGARETTE FILTER
Abstract
This invention relates to extender means for optional attachment
of an auxiliary cigarette filter to a conventional cigarette. The
extender means comprises a tubular body having ridges on its
internal surface. Each said ridge defines dual vertices creating an
air duct therebetween to rarify the smoke drawn through the
cigarette.
Inventors: |
Dock; Mortimer Russel (New
York, NY) |
Assignee: |
The H-2-O Filter Corporation
(New York, NY)
|
Family
ID: |
21704091 |
Appl.
No.: |
05/003,090 |
Filed: |
January 15, 1970 |
Current U.S.
Class: |
131/336; 131/187;
131/198.1; 131/335; 131/337 |
Current CPC
Class: |
A24D
3/043 (20130101) |
Current International
Class: |
A24D
3/04 (20060101); A24D 3/00 (20060101); A24d
001/04 (); A24f 013/06 (); A24f 013/08 () |
Field of
Search: |
;131/9,1A,1R,11,10.7,187,190,4,8 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Koren; Samuel
Assistant Examiner: Pitrelli; J. F.
Claims
The invention having been thus disclosed, what is claimed is:
1. In a filter extender housing for optional attachment of an
independent filter to the end of a cigarette, a tubular body having
internal ridges on its inner surface and containing space in one
end portion for filtering means, and providing in the opposite end
a receptacle for the receipt of the filter end of a conventional
cigarette, such filter end being brought into direct abutment with
the filter means embodied in the said extender housing, wherein
each of said ridges defines dual, closely spaced vertices, creating
an air duct therebetween to effect rarefication of the smoke drawn
through said device, said ridges being spaced apart from each other
a distance substantially greater than the spacing between said
vertices.
2. The invention of claim 1, wherein said housing is fabricated of
resilient, waterproof material.
3. The invention of claim 1, wherein said internal ridges, being
parallel, are longitudinally disposed at spaced-apart intervals
upon the interior of said housing.
4. The invention of claim 1, wherein said internal ridges, being
parallel, follow a helical path upon the interior of said housing.
Description
This invention relates to extender means for optional attachment of
an auxiliary cigarette filter to any conventional cigarette, to
improve the smoking properties thereof, by the matable relationship
of said filter extender with the end of the cigarette.
Many types of filters have been devised with the intent to improve
the smoking qualities of cigarettes. Among these are the
conventional fiber tows, and in addition there is the water filter,
numerous embodiments of which have been assigned to and are owned
by The H- 2-O Filter Corporation, which is the assignee of this
present application. These include U.S. Pat. No. 3,366,121 and
copending applications Ser. No. 662,920, filed Aug. 24, 1967, and
Ser. No. 867,074, filed Oct. 16, 1969.
Customarily, these filters are attached to cigarettes as an
integral part thereof and the smoker whose preference turns to a
particular brand is bound to the use of such filtering means as
that brand provides.
In the present invention it is contemplated that a smoker may
combine his enjoyment of a preferred brand of cigarette with the
enhanced taste and coolness of a filter of a different type, by the
telescopic attachment over the end of his cigarette of an
extender-housing containing such different filter.
The attachment of the device of the present invention upon a
conventional filter cigarette provides for abutment of the filter
embodied herein with the filter integrally attached to the
cigarette. This invention consists of a hollow cylindrical housing
having upon the interior thereof parallel ridges, either
longitudinal or defining a helical path. The purpose of the ridges
is twofold: (1 ) to secure the end of the cigarette within the
housing by the added compression exerted by said ridges; and (2) to
create minute air ducts along said ridges, to rarefy the smoke and
add coolness as the smoke enters the filter. Such ridges, defining
depressed paths upon the filter end of the cigarette, effect an
improvement in the action of the filter, by the continuance of the
ridges into the filter end of the filter-extender housing.
It is contemplated that each of such ridges may define dual
vertices so that, upon compression of the wrapper of the filter
integrally attached to the cigarette, when the same is inserted
into the open end of the extender housing, such dual vertices will
provide a channel therebetween, to permit the passage of air
therethrough and the consequent rarefication of the smoke that is
received into the filter embodied in the present invention.
This device is different from, and an improvement over, cigarette
holders, including those in which some form of filter is provided.
In those devices, the filter is disposed at a distance from the
mouth of the smoker, leaving a chamber through which the smoke must
pass before reaching the smoker's mouth. In the present invention,
the filter is directly adjacent the smoker's tongue and abuts the
end of the filter on the cigarette with which this device is
used.
For a better understanding of this invention, reference is made to
the accompanying drawings, in which:
FIG. 1 is a perspective view of the filter end of the extender
housing of the present invention, embodying a filter in one end
thereof and having the end of a cigarette telescopically inserted
into the opposite end of said extender housing.
FIG. 2 is a cross section taken on line 2--2 of FIG. 1.
FIG. 3 is a cross section of said extender housing, without a
cigarette inserted therein, and without the filter means, showing
longitudinal ridges upon the interior thereof.
FIG. 4 is the cross section of FIG. 3, showing the ridges following
a helical path along the interior thereof.
FIG. 5 is an end view of the filter extender housing; and
FIG. 6 is an end view of a cigarette the end of which has been
inserted into the said extender housing.
With more particular reference to the drawings, it will be seen
that in FIGS. 1 and 2, housing 10 has, in one end 11, a filter 12,
and the opposite end 13 provides a receptacle into which the filter
end 14 of a cigarette 15 is inserted.
FIG. 3 shows the longitudinal ridges 16 extending throughout the
length of the extender housing; and
FIG. 4 shows ridges 16' following a helical path along the interior
of said extender housing.
In FIG. 5, an end view of the extender housing shows ridges 16,
providing angular recesses 17 adjacent the ridges, thus creating
additional air ducts to supplement those between said dual
vertices.
FIG. 6 shows an end view of a cigarette which has been inserted
into the housing of the present invention, with the wrapper of said
cigarette depressed at 18, causing the creation of widened grooves
19. Said grooves 19 provide the principal air duct along each ridge
path to permit the intake of air for rarefication of the smoke, as
above set forth. While such widened grooves are not essential for
the creation of air ducts, they are shown as the preferred
embodiment; however, a ridge having a single vertex would likewise
be operable, to a somewhat lesser extent.
The extender housing, with a filter emplaced at one end, is fitted
over the end of a cigarette, and pressure exerted upon the end
thereof serves to apply the extender means over the filtered end of
the cigarette. In filters using the adjustable device of said
copending application, Ser. No. 867,074, such pressure also serves
to activate the filter simultaneously with its attachment to the
cigarette. Pressure is continued upon the end of the extender
housing until the filter contained therein has been brought into
abutment with the tip of the filter which forms an integral part of
the conventional cigarette to which said extender means is being
applied.
When the housing employs longitudinal ridges, insertion of the
cigarette is effected by a straight pushing action; when helical
ridges are used, the extender housing is turned slightly as it is
pushed onto the cigarette, to create grooves in the latter
following the same pattern as the helical ridges.
Various means have been used to create air vents in cigarette
filters, indicating the recognition that rarefication of the smoke
is desirable. The rarefication achieved by the present invention is
believed to be superior to such other means, and the added
advantage of this invention, as stated heretofore, is its optional
use on cigarettes having a preferred taste but with ineffective
filtering means.
* * * * *