Information
-
Patent Grant
-
6454133
-
Patent Number
6,454,133
-
Date Filed
Thursday, May 3, 200123 years ago
-
Date Issued
Tuesday, September 24, 200222 years ago
-
Inventors
-
-
Examiners
- Morris; Lesley D.
- Willatt; Stephanie
Agents
- Welsh & Katz, Ltd.
- Cohen; Eric D.
-
CPC
-
US Classifications
Field of Search
US
- 222 102
- 222 101
- 222 105
- 222 94
- 222 95
- 222 97
-
International Classifications
-
Abstract
An apparatus is provided for discharging toothpaste from a toothpaste tube under control of a user. The apparatus includes a tube holder and a tube receptacle disposed within a first end of the tube holder and adapted to accept a cap end of the toothpaste tube. The apparatus further includes a set of nip rolls adapted to engage a body of the toothpaste tube and to urge toothpaste from a distal end of the toothpaste tube towards the cap end and a wheeled trolley coupled to the nip rolls on a first end and engaging a guide channel of the tube holder on a second end and adapted to maintain an alignment of the nip rolls with respect to a centerline of the tooth paste tube as the nip rolls travel along a longitudinal axis of the toothpaste tube from the distal end to the cap end.
Description
FIELD OF THE INVENTION
The invention relates to oral hygiene and more particularly to toothpaste dispensers.
BACKGROUND OF THE INVENTION
Devices for dispensing toothpaste from toothpaste tubes are generally known. Such devices may typically be divided into ratcheting-type devices and gear driven devices.
Of the ratcheting-type devices, a first type provides a stationary lower portion and a movable upper portion. Moveably disposed within the upper portion is a slide assembly which pushes toothpaste out of the toothpaste tube using an internal pair of rollers disposed against each side of the toothpaste tube and which press against the tube from either side.
The lower portion accepts the cap end of the toothpaste tube. As the moveable upper portion is pressed down, a set of pawls on the slide assembly engage the upper portion and move downwards with the upper portion, pushing the rollers downward thereby dispensing toothpaste. As the upper portion is released, the pawls release and the upper portion moves upwards
As an alternative to the ratcheting-type devices, a number of gear driven devices have been proposed. Generally the gear driven devices also provide a pair of rollers on each side of the toothpaste tube, which squeeze and advance towards a cap end, thereby, dispensing toothpaste. A gear-drive engages a housing and functions to drive the rollers along the toothpaste tube.
While the prior art devices have been effective, they are typically overly complicated and difficult to manufacture. The need for ratchet or gear-driven racks require overly complicated housing and engagement features. Accordingly, a need exists for an apparatus of dispensing toothpaste from a toothpaste tube which is simple to manufacture and reliable in design.
SUMMARY OF THE INVENTION
An apparatus is provided for discharging toothpaste from a toothpaste tube under control of a user. The apparatus includes a tube holder and a tube receptacle disposed within a first end of the tube holder and adapted to accept a cap end of the toothpaste tube. The apparatus further includes a set of nip rolls adapted to engage a body of the toothpaste tube and to urge toothpaste from a distal end of the toothpaste tube towards the cap end and a wheeled trolley coupled to the nip rolls on a first end and engaging a guide channel of the tube holder on a second end and adapted to maintain an alignment of the nip rolls with respect to a centerline of the tooth paste tube as the nip rolls travel along a longitudinal axis of the toothpaste tube from the distal end to the cap end.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
depicts a toothpaste dispenser in accordance with an illustrated embodiment of the invention;
FIG. 2
depicts a side cut-away view of the dispenser of
FIG. 1
;
FIG. 3
depicts details of a wheeled trolley of the dispenser of
FIG. 1
;
FIG. 4
depicts details of a frame used by the dispenser of
FIG. 1
;
FIG. 5
depicts a clamping assembly used by the dispenser of
FIG. 1
;
FIG. 6
depicts an alternate embodiment of the dispenser of
FIG. 1
;
FIG. 7
depicts a toothbrush holder that may be used with the dispenser of
FIG. 1
;
FIG. 8
depicts a toothpaste tube receptacle that may be used with the dispenser of
FIG. 1
;
FIG. 9
depicts an angled plate that may be used to form a guide slot within the dispenser of
FIG. 1
; and
FIG. 10
depicts a set of end rails that may be used with the dispenser of FIG.
1
.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
FIG. 1
is a perspective view of an apparatus
10
for dispensing toothpaste from a toothpaste tube in accordance with an illustrated embodiment of the invention. Included on the apparatus
10
is an actuating lever
12
for dispensing toothpaste and a discharge orifice
14
for directing toothpaste onto a toothbrush (not shown).
FIG. 2
is a side cut-away view of the dispenser
10
of FIG.
1
. Included within the dispenser
10
is a receptacle
20
for a cap end of the toothpaste tube
24
. A set of complementary threads
22
may be provided to allow the cap end of the toothpaste tube
24
to be threaded into the dispenser
10
.
At an opposing end of the toothpaste tube
24
, a clamp assembly
16
is provided. The clamp assembly
16
may be used to secure a distal end of the toothpaste tube
24
within the dispenser.
A wheeled trolley
18
may function to engage a body of the toothpaste tube
24
and urge the toothpaste from the distal end of the toothpaste tube
24
towards the discharge end. A guide channel or slot
22
may be provided to restrain and guide the wheeled trolley
18
as it moves along the toothpaste tube
24
.
FIGS. 3
a-b
show top and side views of the wheeled trolley
18
.
FIG. 3
c
shows an exploded, perspective view of the wheeled trolley
18
.
As shown, a set of side rails
38
,
40
form a frame of the wheeled trolley
18
. The guide rails may be laterally aligned and relative straight with two handles
12
or may be joined at a user end through use of a pair of right angle bends as shown in
FIG. 3
a.
Further, each side rail
38
,
40
may include an end rail portion
41
,
43
set parallel to the toothpaste tube
24
and at right angles to the guide rail
38
,
40
as shown in
FIG. 3
b
. The end rail
41
,
43
may extend in either direction from the end of the side rails
38
,
40
or may be centered as shown in FIG.
10
.
A first set of rollers
30
,
32
form a set of nip rollers, which engage the toothpaste tube
24
as shown in
FIG. 1. A
second set of rollers
34
,
36
engage the guide slot
22
. A set of screws
44
are provided to secure each roller
30
,
32
,
34
,
36
to the rails
38
,
40
,
41
,
43
.
FIG. 4
shows the frame
50
and associated support structures of the dispenser
10
. As shown, an angled plate
52
(
FIG. 9
) operating in conjunction with the frame
50
forms the guide slot
22
for the wheeled trolley
18
.
The receptacle
20
shown in
FIGS. 1
,
4
and
8
may be formed as a removable insert. A reclosable cap
56
may act to seal and protect the freshness of any toothpaste within the discharge orifice
14
. A spring loaded lever
58
may function to urge the cap
56
into a closed position between periods of use.
FIG. 5
depicts the clamp assembly
16
of FIG.
1
. As shown a flat plate
62
of the clamp assembly
16
is designed to be inserted into, and engage, a T-slot
60
of the angled plate
52
. A threaded finger nut
72
may be used to adjust a height of the clamp assembly
16
to accommodate the varying length of different length toothpaste tubes
24
.
Also included within the clamp assembly
16
is a stationary jaw
66
and movable jaw
64
. A spring
76
disposed beneath a thumb activated portion
68
of the moveable jaw
64
biases the moveable jaw
64
against the distal end of the toothpaste tube
24
retained between the stationary and moveable jaws
64
,
66
.
The dispenser
10
may be constructed entirely of plastic and assembled without tools. The removable receptacle
20
allows for easy cleaning of the only part
20
making contact with the toothpaste.
To load the dispenser
10
with a toothpaste tube
24
, a removable front cover
11
may be lifted off the dispenser
10
. The wheeled trolley
18
may be lifted to its uppermost position and the distal end of the tube
24
inserted into the nip rolls
30
,
32
as the cap end is rotated into the receptacle
20
.
The clamp assembly
16
may be inserted into the T-slot
60
and the jaws
64
,
66
may be opened to engage and hold the distal end of the toothpaste tube
24
. The cover
11
may then be replaced in preparation for use.
During use, the guide slot rollers
34
,
36
and guide rails
38
,
40
of the wheeled trolley
18
function to maintain the nip rollers
30
,
32
in alignment over a centerline extending along a longitudinal axis of the toothpaste tube
24
. Further, the spaced-apart relationship of the guide rollers
34
,
36
prevent twisting of the wheeled trolley
18
and reduce friction between the wheeled trolley
18
and the structure of the dispenser
10
as the wheeled trolley
18
advances from the distal end towards the cap end of the toothpaste tube
24
. The use of the wheeled trolley
18
has been found to significantly reduce the force needed to dispense toothpaste over prior art devices.
Under an alternate embodiment of the invention (FIG.
6
), a number of dispensers (
FIG. 2
) may be ganged in parallel. Where ganged together, a different dispenser may be devoted to each member of a household or may be dedicated to a different dental product.
Under another embodiment (
FIG. 7
) a toothbrush holder
80
may be provided for attachment to the dispenser
10
. Under the embodiment, a number of clips
82
,
84
,
86
may be provided to engage an equal number of apertures
88
(
FIG. 4
) of the frame
50
. A number of toothbrush apertures
100
,
102
,
104
,
106
,
108
,
110
may be provided in the holder
80
to receive toothbrushes.
A specific embodiment of an apparatus for dispensing toothpaste according to the present invention has been described for the purpose of illustrating the manner in which the invention is made and used. It should be understood that the implementation of other variations and modifications of the invention and its various aspects will be apparent to one skilled in the art, and that the invention is not limited by the specific embodiments described. Therefore, it is contemplated to cover the present invention and any and all modifications, variations, or equivalents that fall within the true spirit and scope of the basic underlying principles disclosed and claimed herein.
Claims
- 1. An apparatus for discharging toothpaste from a toothpaste tube under control of a user, such apparatus comprising:a tube holder; a tube receptacle disposed within a first end of the tube holder and adapted to accept a cap end of the toothpaste tube; a set of nip rolls adapted to engage a body of the toothpaste tube and to urge toothpaste from a distal end of the toothpaste tube towards the cap end; a wheeled trolley coupled to the nip rolls on a first end and engaging a guide channel of the tube holder on a second end and adapted to maintain an alignment of the nip rolls with respect to a centerline of the tooth paste tube as the nip rolls travel along a longitudinal axis of the toothpaste tube from the distal end to the cap end; the wheeled trolley further including first and second parallel side rails; and wherein the first and second parallel side rails are laterally aligned and further comprise opposing apertures adapted to rotatably engage the nip rolls.
- 2. The apparatus for discharging toothpaste from the toothpaste tube as in claim 1 further comprising a user handle coupled to the wheeled trolley which allows the user to advance the nip rollers towards the cap end of the toothpaste tube and, thereby, discharge toothpaste.
- 3. The apparatus for discharging toothpaste from the toothpaste tube as in claim 1 further comprising a clamp adapted to accept and secure the distal end of the toothpaste tube.
- 4. The apparatus for discharging toothpaste from the toothpaste tube as in claim 1 wherein the guide channel further comprising first and second parallel plates aligned parallel to the longitudinal axis of the toothpaste tube.
- 5. The apparatus for discharging toothpaste from the toothpaste tube as in claim 4 wherein at least one of the parallel side rails further comprise a transverse end rail with a longitudinal axis of the transverse end rail parallel to the guide channel.
- 6. The apparatus for discharging toothpaste from the toothpaste tube as in claim 5 wherein the wheeled trolley further comprising a plurality of wheels coupled to the transverse end rail and disposed between the first and second parallel plates.
- 7. The apparatus for discharging toothpaste from the toothpaste tube as in claim 4 wherein the parallel side rails further comprises a transverse end rail coupled to a first end of each of the parallel end rails with a longitudinal axis of each of the transverse end rails parallel to the guide channel.
- 8. The apparatus for discharging toothpaste from the toothpaste tube as in claims 7 wherein the wheeled trolley further comprising a pair of trolley rollers rotatably coupled between transverse end rails and between the first and second parallel plates.
- 9. The apparatus for discharging toothpaste from the toothpaste tube as in claim 1 further comprising a plurality of toothpaste dispensers.
- 10. The apparatus for discharging toothpaste from the toothpaste tube as in claim 1 further comprising a toothbrush holder.
- 11. An apparatus for dispensing toothpaste from a toothpaste tube, such apparatus comprising:first and second parallel and laterally aligned side rails; first and second pairs of mutually parallel rollers rotatable disposed between the side rails, wherein the rollers of each of the first and second pairs of rollers are disposed adjacent one another and wherein a rotational axis of the first pairs of rollers reside in a first plane and a rotational axis of the second pair of rollers reside in a second plane perpendicular to the first plane; first and second parallel, spaced-apart plates, each parallel to the plane defined by the rotational axis of the first set of rollers, wherein the first pair of rollers are disposed between the first and second spaced-apart plates; a tube receptacle disposed at a first end of the first and second plates, with an axis of engagement of the tube receptacle disposed parallel to the plane formed by the rotational axis of the first pair of rollers, said tube receptacle containing an aperture for accepting a toothpaste dispensing end of the toothpaste tube, and wherein the second pair of rollers form nip rollers for urging toothpaste from the tube as the second pair of rollers are urged by a user from a distal end of the toothpaste tube towards the toothpaste dispensing end and wherein the first pair of rollers are adapted to maintain alignment of the second pair of rollers along a centerline of the toothpaste tube as the second pair of rollers move from the distal end of the toothpaste tube towards the toothpaste dispensing end of the toothpaste tube.
- 12. The apparatus for discharging toothpaste from the toothpaste tube as in claim 11 further comprising a user handle coupled to the first and second side rails which user handle is adapted to allow the user to advance the second pair of rollers towards the cap end of the toothpaste tube and, thereby, discharge toothpaste.
- 13. The apparatus for discharging toothpaste from the toothpaste tube as in claim 11 further comprising a clamp adapted to accept and secure the distal end of the toothpaste tube.
- 14. The apparatus for discharging toothpaste from the toothpaste tube as in claim 11 wherein the first and second parallel side rails further comprise a T-shaped plate.
- 15. The apparatus for discharging toothpaste from the toothpaste tube as in claim 11 wherein the first and second parallel side rails further comprise a L-shaped plate.
- 16. The apparatus for discharging toothpaste from the toothpaste tube as in claim 11 wherein the aperture for accepting the toothpaste dispensing end of the toothpaste tube further comprises a set of mating threads adapted to engage a matching set of threads on the toothpaste tube.
- 17. The apparatus for discharging toothpaste from the toothpaste tube as in claim 11 wherein the aperture for accepting the toothpaste dispensing end of the toothpaste tube further comprises a right-angle toothpaste conduit adapted to convey the toothpaste to a toothbrush of the user.
- 18. The apparatus for discharging toothpaste from the toothpaste tube as in claim 17 wherein the right-angle toothpaste conduit adapted to convey the toothpaste to a toothbrush of the user further comprises a cap adapted to preserve a freshness of the toothpaste.
US Referenced Citations (12)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0497124 |
Jan 1992 |
EP |