Information
-
Patent Grant
-
6550086
-
Patent Number
6,550,086
-
Date Filed
Friday, July 20, 200123 years ago
-
Date Issued
Tuesday, April 22, 200321 years ago
-
Inventors
-
Original Assignees
-
Examiners
Agents
- Thompson Coburn LLP
- Upchurch; Gregory E.
-
CPC
-
US Classifications
Field of Search
US
- 005 706
- 005 710
- 005 713
- 005 708
- 137 223
-
International Classifications
-
Abstract
An airbed mattress includes a valve for controlling inflation of the mattress. The valve is normally biased to a closed position to prevent changes in the mattress' level of inflation. The valve may be opened by introduction of an air pump. The valve and air pump are designed to operate cooperatively by employment of an adaptor to facilitate the introduction of the air pump. The valve has an air passageway which contains an internal airflow control assembly. The control assembly operates to open the valve to passage of air upon introduction of the air pump and adaptor as well as effecting the closing of the valve when the air pump and adaptor are withdrawn. The valve also may have an extension adapted for a releasable connection with an air pump and adaptor for holding the valve open.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
Not applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not applicable.
REFERENCE TO A MICROFICHE APPENDIX
Not Applicable.
BACKGROUND OF THE INVENTION
Airbeds have increased in popularity due in part to flexibility of use, ease of set-up and reduction of storage space—all without sacrifices in comfort. An airbed's level of inflation may be adjusted by adding or removing air through a port, optionally in combination with a source of air such as a pump. A valve typically controls airflow through the port and usually operates in concert with an air pump.
An airbed valve preferably has an open mode to enable air passage into and out of the airbed, and a closed mode to maintain the airbed's level of inflation when in use. Preferably the valve can switch readily between modes with minimal actions beyond the introduction of the air pump. The airbed and valve preferably are reliable, compatible with bedding materials, strong enough for frequent long term use, and relatively inexpensive to manufacture.
SUMMARY OF THE INVENTION
An object of the present invention is to provide an apparatus which provides selective control of an airbed's level of inflation by movement of air into or out of the airbed.
Another object of the present invention is to provide an airbed inflation control apparatus which is easy to use in a variety of applications.
A further object of the present invention is to provide an airbed inflation control apparatus of rugged and simple construction which is relatively inexpensive yet operates reliably.
Other objects and features will be in part apparent and in part pointed out hereinafter.
In a first aspect of the present invention an inflatable and deflatable airbed includes an airtight membrane having an interior and an exterior, the membrane being inflatable by adding air to the interior of the membrane. A valve controls passage of air into and out of the membrane, the valve having a longitudinal axis and including a housing. The housing defines an air passageway into the interior of the membrane, the air passageway having a greater radius inside of the membrane than outside the membrane. The air passageway contains an airflow control assembly that includes a longitudinally movable plug sized to fit in and move in the air passageway. The housing has an interior end that is spanned by a housing base, the housing base having at least one aperture open to air flow between the air passageway and the interior. The airflow control assembly biases the plug toward the exterior of the membrane. When the plug is forced against the housing in response to the bias, it forms an airtight closure to prevent airflow through the air passageway. When the plug is moved in a direction opposite to the bias, it opens the valve to air flow through the air passageway.
A second aspect of the present invention includes the airflow control valve used in connection with such an airbed.
A method of connecting an air pump with the inventive airflow control valve to inflate the airbed is also disclosed.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a cross-sectional view of a valve apparatus of the present invention along with representations of a cap and an adaptor device for interconnection with an air pump.
FIGS. 2 and 2A
are expanded cross-sectional views of alternatives of the airflow control assembly of the valve apparatus of the present invention wherein the valve apparatus is depicted in a closed configuration.
FIG. 3
is a further expanded view of
FIG. 2
depicting details of an interior shelf portion of the valve apparatus of the present invention wherein the valve apparatus is depicted in a closed configuration.
FIG. 4
is an expanded cross-sectional view of the airflow control assembly of the valve apparatus of the present invention wherein the valve apparatus is depicted in an open configuration.
FIG. 5
is a further expanded view of
FIG. 4
depicting details of an interior shelf portion of the valve apparatus of the present invention wherein the valve apparatus is depicted in an open configuration.
FIG. 6
is an expanded cross-sectional view of a valve apparatus
110
according to a second embodiment of the present invention.
FIG. 7
is a perspective view of an adaptor
211
according to a third embodiment of the present invention.
FIG. 8
is a view, in the direction
20
of
FIG. 1
, of an external section of an alternative valve housing
241
according to a third embodiment of the present invention.
FIG. 9
is a view of an alternative structure for the valve plug.
Similar reference characters indicate similar parts throughout the several views of the drawings.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to
FIG. 1
, an airbed
8
(only a portion of which is shown), with a valve apparatus
10
according to a first embodiment of the present invention is depicted with an adaptor
11
. The adaptor
11
opens the valve apparatus
10
for introduction of an air pump (not depicted). The adaptor
11
has an end projection
13
. The end projection
13
is depicted in one of a variety of configurations available, subject to the operational requirements that the adaptor end projection
13
fit in flush contact about a perimeter area of the valve and is configured such that the end projection
13
is able to open the valve. End projection
13
is further configured so that when the end projection
13
opens the valve a free flow of air from the pump to the valve as well as from the valve to the pump is not impeded. An end cap
14
for closure of the valve assembly when the airbed's inflation level is not being altered is attached with a tether
16
. An arrow
20
lies along the longitudinal axis of the valve apparatus
10
and indicates the direction of airflow when the airbed
8
is being inflated. The valve apparatus
10
is generally rotationally symmetrical about the longitudinal axis which arrow
20
lies along. An internal inflatable region
30
of the airbed
8
is contained within a membrane
18
, a portion of said membrane
18
about the valve's circumference being airtight sealed to a radial extension
22
girdling the perimeter of the valve apparatus
10
. Said membrane and contiguous valve parts define a boundary surface dividing an external region
28
of the airbed
8
from an internal region
30
. Within an interior
32
of the valve apparatus
10
is contained an airflow control assembly
33
. The airflow control assembly
33
includes a solid plug
34
.
Referring now to
FIG. 2
, the valve apparatus
10
is depicted when maintaining a constant airbed 8 degree of inflation, such as when the airbed
8
is in use, wherein the plug
34
is at its maximum externally directed location. The plug
34
has an external end surface
36
, a plug side surface
38
, and an internal end
40
. End projection
13
pressing on the external end surface
36
in the direction
20
opens the valve apparatus
10
for introducing the adaptor
11
. The valve apparatus
10
has a housing
41
. The housing
41
has an external section
42
. Around the exterior of the terminal end of the housing external section
42
is a threaded portion
44
for receiving the screw-on cap
14
. The plug side surface
38
fits in flush contact with an interior surface
46
of the housing external section
42
. A plug seat
50
is affixed to the internal end
40
of the plug
34
. A post
52
extends internally from the plug seat
50
. The plug seat
50
substantially spans nearly all of the width of a valve apparatus housing internal section
54
. The post
52
is slidably received within a post guide
56
which is part of a fixed housing base
58
. A spring
60
biases the plug seat
50
in the external direction away from the fixed housing base
58
to effect a normal plug and plug seat position at the limit of their externally directed movement. A scallop member
62
(depicted schematically) disposed within the apparatus interior
32
is fixedly connected to the housing base
58
and limits the internally directed travel of the plug and plug seat. The plug
34
, plug seat
50
, post
52
, post guide
56
, housing base
58
, spring
60
and scallop member
62
are parts of the airflow control assembly
33
. Apertures
64
(depicted schematically) are passageways for airflow between the apparatus interior
32
and the internal region
30
.
As can be seen in
FIG. 2A
, the plug
34
may be of various shapes. Although the plug is smoothly tapered in
FIG. 2
, in
FIG. 2A
it has steps shown at
34
S that extend circumferentially around the plug. The housing is varied in shape in this embodiment to accommodate the stepped plug. Although a single step is shown, a number of steps may be formed in plug
34
. Moreover, although the housing is shown as shaped to accommodate the stepped plug, it should be realized that steps may be formed with radii such that the tapered housing of
FIG. 2
may still be used. In that case, the main sealing action would occur between the point of the step and the housing, rather than along the sides of the step. Of course, the precise place where such sealing occurs is of minor importance so long as sealing occurs.
Referring next to
FIG. 3
, an enlarged view in detail of the area indicated with the dashed circle in
FIG. 2
is depicted showing a juncture of the plug and plug seat with an interior shelf
65
of the housing
41
. A resilient pad
70
, which may be composed of a variety of compressible materials but is preferably foam rubber, is attached to the interior shelf
65
. When the plug
34
is at its limit of externally directed travel, an internally facing surface
72
of pad
70
is pressed upon by an externally facing surface
75
of the outermost portion of plug seat
50
and by an externally facing surface
76
of the plug
34
. Contact of the surface
72
with the surfaces
75
and
76
obstructs airflow through the valve interior
32
. The obstruction of airflow through the valve interior
32
prevents airflow into or out from the internal region
30
, thereby blocking changes in the airbed
8
level of inflation.
FIGS. 4 and 5
depict the same elements in the same views as in
FIGS. 2 & 3
, respectively, differing only by the plug
34
and plug seat
50
being at their internally directed limit of movement. The internally directed motion of valve apparatus
10
is caused by introduction of adaptor
11
and projection
13
(not depicted). At its limit of internally directed travel the plug seat
50
contacts the scallop
62
. Air passageways between the surface
38
and the surface
46
, and between the surfaces
75
and
76
and the surface
72
are opened by the internally directed movement of the plug seat
50
. These passageways enable inflation or deflation of the membrane
18
by airflow through the valve interior
32
.
While a wide variety of materials and compositions of matter can serve well to construct the present invention, the plug
34
is preferably composed of rubber and the plug seat
50
of plastic.
Referring now to
FIG. 6
, which is a cross-section view of a valve apparatus
110
that is modified in three ways from the valve apparatus
10
of the first embodiment. A first modification is the absence of the resilient pad
70
, which is attached to the interior shelf
65
in the first embodiment. The space occupied by pad
70
in the first embodiment is an unoccupied part of the valve interior
132
in the second embodiment. When a plug
134
is at the limit of its externally directed movement, plug side surface
38
fits in flush contact with interior surface
46
to obstruct airflow through the valve apparatus
110
. When the plug
134
is moved in the internal direction
20
, air passes between plug side surface
38
and housing interior surface
46
, thereby allowing airflow through the valve apparatus
110
.
A second modification is to an external end surface
136
of plug
134
. In the second embodiment, a corner ring
135
circles the outer border of external end surface
136
. Corner ring
135
is preferably a hard plastic, but may be constructed of any material with the suitable properties. These properties are sufficient durability to withstand repeated pressings by the end projection
13
without significant structural degradation; and a surface which produces relatively low friction when contacting the interior surface
46
. End projection
13
is formed from a cylindrical shell with a relatively narrow radial thickness. Corner ring
135
extends from the outer edge of the external end surface
136
towards the axial center of plug
134
sufficiently far to cover the entire contact area of end projection
13
with plug
134
. The depth of corner ring
135
along the side
38
is sufficiently far to ensure that housing interior surface
46
only contacts corner ring
135
when the plug
134
is moving. In operation, corner ring
135
provides at least two benefits. First, the durability of corner ring
135
prevents damage to the plug
34
from repeated pressings by adaptor
13
. Second, the lesser friction between interior surface
46
and the material of corner ring
135
, versus the material of plug
134
, allows plug
134
to more readily travel to its external limit of movement, for a faster and more complete closing of the valve. The desired degree of inflation of airbed
8
is thus easier to keep, once reached, since the quicker, complete closing of the valve reduces the escape of air.
A third modification is to the parts within the valve interior
132
which direct and control the motion of the plug
134
. In the second embodiment, the post
52
of the first embodiment is now a post guide
152
that extends in an internal direction from a plug seat
150
. The post guide
56
of the first embodiment is now a post
156
that extends in an external direction from a housing base
158
in the second embodiment. Post
156
and post guide
152
are also of greater width than post
52
and post guide
56
are in the first embodiment. This greater width, preferably in combination with a close fitting of post guide
152
to post
156
, reduces undesired plug
134
movement in a direction transverse to direction
20
when the valve apparatus
110
is open. A spring retaining guide
157
extending from housing base
158
encircles the perimeter of spring
60
. Spring retaining guide
157
maintains the desired positioning of the spring
60
during movement of plug
134
. The scallop
62
of the first embodiment is absent in the second embodiment. A plurality of bars
162
extend in an internal direction from plug seat
150
to a fraction of the depth of the valve interior
132
. Bars
162
contacting housing base
158
arrest the internally directed motion of plug
134
. While bars
162
are depicted as being longer than the height of spring retaining guide
157
, in an alternative embodiment spring retaining guide
157
may be equal or greater in height than the length of bars
162
, so that the internally directed movement of the plug
134
is arrested by contact of the plug seat
150
with the spring retaining guide
157
.
Referring now to
FIG. 7
, an alternative adaptor
211
to be optionally used instead of adaptor
11
when introducing an air pump
8
into valve
10
(or valve
110
). The adaptor
211
is specifically configured to work in cooperation with an alternative valve housing
241
depicted in
FIG. 8
, described subsequently. Adaptor
211
differs from adaptor
11
by an alternative end projection
213
. A collar
214
and a plurality of legs
218
comprise end projection
213
. Formed within collar
214
are a trio of vertical inset slots
215
connecting to a trio of horizontal slots
217
. Each of slots
215
originate from a site in collar
214
midway between legs
218
.
Alternative valve housing extension
241
is configured to operate cooperatively with adaptor
211
. From the perspective along the direction
20
, an alternative housing interior surface extension
246
is seen in FIG.
8
. Housing extension
241
extends externally above the external movement limit of plug
34
, providing space external of plug
34
but still inside the confines of housing extension
241
. Within this space, a trio of pegs
247
extend from the interior surface extension
246
. Pegs
247
are spaced to simultaneously align with slots
215
, and are sized to fit in slots
215
when adaptor
211
moves in the direction
20
. Adaptor
211
moving in direction
20
opens the valve apparatus
10
. Once at the limit of slots
215
, the adaptor
211
is rotated clockwise, if viewed along direction
20
. The rotation fits pegs
247
into slots
217
. Once in slots
217
, pegs
247
cannot move opposite to the direction
20
until the adaptor
211
is rotated counterclockwise to bring pegs
247
back to slots
215
. The slots
215
and pegs
247
are thus able to selectively keep the adaptor in place when holding the valve apparatus open without requiring the user to continuously exert force to overcome the bias holding the valve closed. The cooperative action of adaptor
211
and housing extension
241
provides an easily securable and releasable connection between the valve apparatus
10
(or
110
) and an air pump (not depicted). Since the pump takes at least some number of seconds to alter the airbed 8 degree of inflation, the securable connection provided by adaptor
211
and housing extension
241
allows the user to engage in other activities during this time. Alternatively, the slots
215
and
217
could be formed in the housing extension
241
, and the pegs
247
could extend from the adaptor
213
to provide the same benefit. Still another alternative would be to have either the slots or pegs formed into a part of the air pump itself, with the corresponding pegs or slots formed in the housing extension
241
, if that air pump is configured to fit directly into the valve apparatus without need of an adaptor
213
. The configuration of slots and pegs described in the third embodiment of the present invention are intended to be merely illustrative and not limiting. It is projected that a multitude of differing cooperative elements can provide functional benefits similar to the pegs and slots, as is well known to those of skill in the art, without departing from the scope of the present invention.
Turning to
FIG. 9
, an alternative valve
10
A is shown in simplified form (with the biasing spring and structure removed for clarity). Valve
10
A includes a plug
34
A that mates with the conical section of the valve body but stops short of the exterior end of the valve body. In this embodiment, the plug does not extend into the part of the passageway (labeled
250
) surrounded by the threads
44
. The interior portion of plug
34
A has a thick rubber flange (for example, about {fraction (1/16)}″ in thickness) that extends around the circumference of the plug body (for example, extending ½″ out from the plug body). This integral flange
251
mates against a suitable sealing surface
253
to provide additional sealing. Of course, other minor variations in the shape and size of the plug and the housing could be used as well.
In the disclosure of the present invention the bed is described as being inflated by air but it should be understood that “air” as used herein is a generic term for any desirable inflation gas. In view of the above, it will be seen that the various objects and features of the invention are achieved and other advantageous results obtained. The examples contained herein are merely illustrative and are not intended in a limiting sense.
Claims
- 1. An inflatable and deflatable airbed comprising:an airtight membrane having an interior and an exterior, the membrane being inflatable by adding air to the interior of the membrane; a value integral with the membrane and controlling passage of air into and out of said membrane, said valve having a longitudinal axis and including a housing, said housing defining an air passageway into the interior of the membrane, said air passageway having a greater radius interior of the membrane than exterior of the membrane, said air passageway containing an airflow control assembly, said airflow control assembly including a longitudinally movable plug sized to fit in and move in said air passageway, said housing having an interior end that is spanned by a housing base, said housing base having at least one aperture open to air flow between the air passageway and the interior; said airflow control assembly biasing said plug toward the exterior of the membrane; said plug when the plug is forced against the housing in response to said bias, forming an airtight closure to prevent airflow through said air passageway; and said plug when moved in a direction opposite to said bias, opening said valve to air flow through said air passageway and into the interior of said membrane.
- 2. An airbed according to claim 1 wherein said airflow control assembly further includes a movable post extending along the longitudinal axis from said plug and a post guide extending along the longitudinal axis from said housing base, said post and post guide limiting transverse movement of said plug.
- 3. An airbed according to claim 1 further including a radial extension girdling the perimeter of said valve, wherein an inner border of said radial extension is joined by an airtight seal to said valve and an outer border of said radial extension is joined by an airtight seal to said membrane.
- 4. An airbed according to claim 1, wherein said housing additionally has an interior shelf adjacent to the air passageway; andsaid plug having a radially extending segment of sufficient radius for engaging said interior shelf at the limit of externally directed movement of said plug to prevent airflow through the valve.
- 5. The airbed as set forth in claim 4 wherein the radially extending segment is integrally formed on said plug.
- 6. The airbed as set forth in claim 1 wherein the plug is substantially solid.
- 7. The airbed as set forth in claim 1 wherein an interior surface of said housing forms a conical section which narrows in the direction from the interior to the exterior of the membrane, a side surface of said plug forming a mating conical section to cooperatively fit in flush contact with said housing conical section.
- 8. The airbed as set forth in claim 1 further including a spring between said housing base and said plug for biasing the plug.
- 9. The airbed as set forth in claim 8 wherein said airflow control assembly further includes a post extending along the longitudinal axis from said plug and a post guide extending along the longitudinal axis from said housing base, said post and post guide limiting transverse movement of said plug, and said spring coils around said post and post guide.
- 10. An inflatable and deflatable airbed comprising: an airtight membrane having an interior and an exterior, the membrane being inflatable by adding air to the interior of the membrane;a valve integral with the membrane and controlling passage of air into and out of said membrane, said valve having a longitudinal axis and including a housing, said housing defining an air passageway into the interior of the membrane, said air passageway having a greater radius interior of the membrane than exterior of the membrane, said air passageway containing an airflow control assembly, said airflow control assembly including a longitudinally movable plug sized to fit in and move in said air passageway, said housing having an interior end that is spanned by a housing base, said housing base having at least one aperture open to air flow between the air passageway and the interior; said airflow control assembly biasing said plug toward the exterior of the membrane; said plug when the plug is forced against the housing in response to said bias, forming an airtight closure to prevent airflow through said air passageway; and said plug when moved in a direction opposite to said bias, opening said valve to air flow through said air passageway, and into the interior of said membrane, and wherein said housing additionally has an interior shelf adjacent to the air passageway; and said plug having a radially extending segment of sufficient radius for engaging said interior shelf at the limit of externally directed movement of said plug to prevent airflow through the valve, and further wherein said valve housing includes a rib extending interiorly about the radially extending segment.
- 11. An inflatable and deflatable airbed comprising:an airtight membrane having an interior and an exterior, the membrane being inflatable by adding air to the interior of the membrane; a valve integral with the membrane and controlling passage of air into and out of said membrane, said valve having a longitudinal axis and including a housing, said housing defining an air passageway into the interior of the membrane, said air passageway having a greater radius interior of the membrane than exterior of the membrane, said air passageway containing an airflow control assembly, said airflow control assembly including a longitudinally movable plug sized to fit in and move in said air passageway, said housing having an interior end that is spanned by a housing base, said housing base having at least one aperture open to air flow between the air passageway and the interior; said airflow control assembly biasing said plug toward the exterior of the membrane; said plug when the plug is forced against the housing in response to said bias, forming an airtight closure to prevent airflow through said air passageway; and said plug when moved in a direction opposite to said bias, opening said valve to air flow through said air passageway, wherein the plug has a body made of a relatively flexible material and a plug seat of a relatively rigid material, said plug seat carrying the plug body.
- 12. The airbed as set forth in claim 11 wherein the plug seat is disposed interiorly of the plug body.
- 13. An airflow control valve adapted for use with an airbed comprising:a valve housing having first and second ports for the passage of air through said valve; said valve housing enclosing an air passageway between said ports, said air passageway containing an airflow control assembly, said airflow control assembly including a plug movable within said air passageway and fitting into said first port, and a post extending from said plug into the air passageway; said air passageway having at least first and second portions, said first portion being closer to said first port and of lesser radius than said second portion; said plug having at least one part thereof with a radius intermediate the radii of said first and second portions; said housing including a fixed housing base spanning the width of said air passageway second portion, said housing base providing at least one aperture for the open movement of air therethrough, said housing base having a post guide extending into said air passageway in a second direction towards said first port, said post guide slidably receiving said post; said housing base having a biasing device which biases said plug into contact with said first portion so that said plug closes said air passageway to airflow; and said plug being movable in response to a force greater than said biasing to open the valve to movement of air through said passageway and into the airbed.
- 14. The airflow control valve according to claim 13 wherein said plug has an outermost flange extending circumferentially around one end of the plug.
- 15. An airflow control valve adapted for use with an airbed comprising:An airflow control valve adapted for use with an airbed comprising: a valve housing having first and second ports for the passage of air through said valve; said valve housing enclosing an air passageway between said ports, said air passageway containing an airflow control assembly, said airflow control assembly including a plug movable within said air passageway and fitting into said first port, and a post extending from said plug into the air passageway; said air passageway having at least first and second portions, said first portion being closer to said first port and of lesser radius than said second portion; said plug having at least one part thereof with a radius intermediate the radii of said first and second portions; said housing including a fixed housing base spanning the width of said air passageway second portion, said housing base providing at least one aperture for the open movement of air therethrough, said housing base having a post guide extending into said air passageway in a second direction towards said first port, said post guide slidably receiving said post; said housing base having a biasing device which biases said plug into contact with said first portion so that said plug closes said air passageway to airflow; and said plug being movable in response to a force greater than said biasing to open the valve to movement of air through said passageway and into the airbed said housing includes a flat shell for receiving the plug flange for at least partially sealing the passageway.
- 16. The airflow control valve as set forth in claim 15 wherein the shelf is defined by a rib extending interiorly from the housing.
- 17. An airflow control valve adapted for use with an airbed comprising:An airflow control valve adapted for use with an airbed comprising: a valve housing having first and second ports for the passage of air through said valve; said valve housing enclosing an air passageway between said ports, said air passageway containing an airflow control assembly, said airflow control assembly including a plug movable within said air passageway and fitting into said first port, and a post extending from said plug into the air passageway; said air passageway having at least first and second portions, said first portion being closer to said first port and of lesser radius than said second portion; said plug having at least one part thereof with a radius intermediate the radii of said first and second portions; said housing including a fixed housing base spanning the width of said air passageway second portion, said housing base providing at least one aperture for the open movement of air therethrough, said housing base having a post guide extending into said air passageway in a second direction towards said first port, said post guide slidably receiving said post; said housing base having a biasing device which biases said plug into contact with said first portion so that said plug closes said air passageway to airflow; and said plug being movable in response to a force greater than said biasing to open the valve to movement of air through said passageway and into the airbed wherein the plug has a body made of a relatively flexible material and a plug seat of a relatively rigid material, said plug seat carrying the plug body.
- 18. The airflow control valve as set forth in claim 17 wherein the plug seat is disposed interiorly of the plug body.
- 19. An airflow control valve adapted for use with an airbed comprising:a valve housing having a closable port for the control of air passage between an interior and an exterior of an inflatable volume, said valve housing enclosing an air passageway, said air passageway containing an airflow control assembly; said airflow control assembly including a movable plug having a plug seat which normally forms an airtight seal with said port, and a post guide extending from said plug seat into the air passageway; a fixed housing base spanning a side of said housing, said housing base being open to air movement therethrough and having a post extending into said air passageway, said post sliding within said post guide; a biasing device biasing the plug with a biasing force away from said housing base towards said port so that said plug normally forms an airtight seal with said port to close the air passageway to airflow; and said plug being movable in response to a force greater than said biasing to open the valve to movement of air through said passageway.
- 20. A method of connecting an air pump with an airflow control valve adapted for use with an airbed comprising the steps of:providing a valve having a closable port for the control of air passage between an interior and an exterior of an inflatable volume; said valve including a housing enclosing an air passageway and having an outward extension, said outward extension incorporating a connector, said air passageway containing an airflow control assembly; said airflow control assembly including a movable plug which normally forms an airtight seal with said port, and a post extending from said plug seat into the air passageway; a fixed housing base spanning an inward side of said housing, said housing base open to air movement therethrough and having a post guide extending into said air passageway, said post guide slidably receiving said post; a biasing device biasing the plug away from said housing base towards said port so that the plug forms the airtight seal with said port to close the air passageway to airflow; providing an adaptor configured to make a releasable connection with said housing extension connector, the adaptor having a connected position which opens said air passageway to airflow, said adaptor encompassing an auxiliary air passageway; introducing said adaptor inward into said port with a force greater than said biasing to open said air passageway to airflow and making said releasable connection to hold said adaptor in said connected position without continuing application of said force.
- 21. The method according to claim 20 wherein said adaptor auxiliary air passage is configured to provide an air passageway between an air pump and said valve.
- 22. The method according to claim 20 wherein said adaptor is integrated into an air pump.
US Referenced Citations (7)