FIELD OF THE INVENTION
This invention relates generally to vacuum holders having improved, novel vacuum spoiling means.
STATEMENT OF PRIOR ART
The prior art, as exemplified by U.S. Pat. Nos. 1,228,649; 2,711,765; 3,716,307; 1,845,196; and 2,501,942 is generally illustrative of various devices of this type. While such devices are generally acceptable for their intended purpose theyhave not proven to be entirely satisfactory in that they are either complex and expensive to manufacture, or bulky and inconvenient to use, or require unusual skill and/or dexterity to operate. As a result of the shortcomings of the prior art, typifiedby the above, there has developed and continues to exist a substantial need for devices of the character described. Despite this need, and the efforts of many individuals and companies to develop such devices, a satisfactory device meeting this need hasheretofore been unavailable.
The principal object of this invention is to provide a novel double suction cup holder.
Another object is to provide improved, novel vacuum spoiling means for suction cup holders of the character described.
Other objects of this invention will in part be obvious and in part hereinafter pointed out.
The invention accordingly consists in the features of construction, combinations of elements, and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of application will be indicated inthe following claims.
SUMMARY OF THE INVENTION
This invention resides in a double suction cup holder in which the two suction cups are connected by a stem has a longitudinal air passageway through the stem connecting the two cups. A diametrical opening traverses the passageway and has avalve member rotatably mounted therein which has inter-communicating longitudinal and diametrical bores. When the valve is turned so that its diametrical bore communicates with the air passageway, the vacuum in the cups is spoiled releasing the holder.
BRIEF DESCRIPTION OF THE DRAWING
In the accompanying drawing, in which is shown one of the various possible illustrative embodiments of this invention, wherein like reference character identify the same or like parts:
FIG. 1 is a perspective view of the invention use thereof on a vertical surface;
FIG. 2 is a bottom plan view partly in section of one of the suction cups;
FIG. 3 is a cross-sectional view through line III--III of FIG. 2; and
FIG. 4 is a cross-sectional view taken along line IV--IV and showing the valve means actuator.
DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to the drawing, there is shown and illustrated a double suction cup holder constructed in accordance with the principles of the invention and designated generally by reference character 10. The particular holder representedincludes a first suction cup 12 connected by stem 14 to an identical second suction cup 16. Both cups are made of rubber or rubber-like material including certain plastic and resilient materials. Both cups 12 and 16 are arcuate, having a sphericalconcavity 18 terminating in peripheral lip 20. Stem 14 is circular and cylindrical in shape and, as shown in the drawings, is coaxial with the cups 12 and 16.
As shown in FIG. 3, stem 14 has a circular cylindrical bore 40 extending axially therein and terminating in enlarged sections 22 in the centers of each cup. A diamerically extending opening 24 intersects bore 40.
As shown in FIGS. 3 and 4 a plastic or hard rubber valve member 26 having a knurled turning knob 28 is provided. Member 26 is rotatably mounted in opening 24. Member 26 has an axial bore 30 terminating in a cylindrical circular diametrical hole32. The lower end of member 26 is secured to the stem by washer 34 fitting in groove 36 thereof so that member 26 can rotate while being substantially in hermetic engagement with the stem 14.
It will be readily appreciated that when valve member is in the position shown in FIG. 3, with its bore 32 not in communication with axial bore 40 of stem 14, the vacuum in both cups will endure. When the member 26 is turned to place bores 32and 40 in communication, the vacuum will be spoiled.
The holder of this invention can be used to secure objects such as memo pads to any flat surface whether it be vertical, horizontal or diagonal. Depending on the size and/or weight of the object, a number of holders may be required such as onein each corner of the object.
The operation and use of the invention hereinabove described will be evident to those skilled in the art to which it relates from a consideration of the foregoing.
It will thus be seen that there is provided a device in which the several objects of this invention are achieved, and which is well adapted to meet the conditions of practical use. Its advantages are easily seen.
It is thought that persons skilled in the art to which this invention relates will be able to obtain a clear understanding of the invention after considering the foregoing description in connection with the accompanying drawing. Therefore, amore lengthy description is deemed unnecessary.
It is to be understood that various changes in shape, size and arrangement of the elements of this invention as claimed may be resorted to in actual practice, if desired.
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