Fluid sprinkling – spraying – and diffusing – Rigid fluid confining distributor – Assembly or disassembly feature
Reexamination Certificate
2000-05-17
2002-10-29
Morris, Lesley D. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Rigid fluid confining distributor
Assembly or disassembly feature
C239S532000, C239S548000, C285S258000
Reexamination Certificate
active
06471147
ABSTRACT:
BACKGROUND OF THE INVENTION
1) Field of the Invention
The invention herein relates to an improved structure water sprayer head assembly that remedies the conjoinment difficulty shortcomings encountered in the process of fastening the sprayer head and long tube of conventional water sprayers as well as the associated higher production costs; with the structure of the present invention, in addition to an easier and more efficient method of conjoining the connector to the long tube and thereby form a unitary body, when the outer circumference of the connector is fastened to the sleeve of the sprayer head, an effective watertight closure is formed between the sleeve and the connector.
2) Description of the Prior Art
Conventional water sprayer head assembly structures, as indicated in FIG.
1
and
FIG. 2
, are comprised of a sprayer head
2
having a circular pattern of numerous fine water output holes
21
in its extreme anterior end surface; a sleeve
22
disposed at the center of its bottom end, with an internal threaded section
221
formed inside the sleeve
22
; a water sealing ring
3
inserted in the interior section of the sprayer head
2
sleeve
22
; a connector
4
having external threads
41
formed around the circumference of its front section as well as at the end section of its circumference a tubular body
42
of an appropriate length having a water sealing ring around its circumference; an annularly formed mounting groove
43
at the junction area between the connector
4
external threads
41
position and the tubular body
42
; and a long tube
5
ensleeved in the bottom section of the tubular body
42
of the connector
4
; after the circumference of the front end of the long tube
5
is first ensleeved into the tubular body
42
at the end section of the connector
4
, there is expansive force from the most forward end
51
of the long tube
5
such that its most forward end is firmly inserted in the mounting groove
43
at the juncture area between the connector
4
position and the external threads of the tubular body
42
, enabling the long tube
5
to be conjoined to the connector
4
as a unitary body; finally, the external threads
41
around the front section circumference of the connector
4
are fastened to the internal threads section
221
inside the sleeve
22
at the center and bottom section of the sprayer head
2
such that the sprayer head
2
, the water sealing ring
3
, the connector
4
, and the long tube
5
are assembled into a completed water sprayer head assembly structure.
However, in the said structure and especially at the section of the assembly structure between the connector
4
and the long tube
5
; first, since a tubular body
42
of an appropriate length must be formed at the bottom section of the connector
4
such that when the connector
4
is fabricated, the said tubular body
42
necessarily involves increased material cost; second, when the long tube
5
is assembled to the tubular body
42
of the connector
4
to form a unitary body, since after the front end of the long tube
5
is ensleeved onto the circumference of the tubular body
42
formed at the end section of the connector
4
, due to the expansive force at the most forward end
51
of the long tube
5
, its most forward end can be inserted into the mounting groove
43
along the junction area between the connector
4
position external threads
41
and the tubular body
42
such that the insertive conjoinment area forms a recessed profile that is not only unattractive, but since only a small portion of the most forward end
51
of the long tube
5
is conjoined to the connector
4
and, furthermore, entry is just at the initial extent of the high pressure water flow of the water sprayer, which after flowing through the interior section of the long tube
5
, the interior section of the connector
4
, and then the interior section of the sprayer head
2
, the water is finally dispersed from the circular pattern of numerous fine water output holes
21
in the extreme anterior end surface of the sprayer head
2
, the conventional assembly structure is incapable of effectively bearing the overall water pressure though the long tube
5
, the connector
4
, and finally during the dispersal of the water from the fine water output holes
21
in the extreme anterior end surface of the sprayer head
2
, with the incapability of withstanding high pressure being an existent shortcoming that awaits improvement.
Referring to FIG.
3
and
FIG. 4
, another type of water sprayer head assembly structure available on the market is comprised of a sprayer head
2
having a circular pattern of numerous fine water output holes
21
in its extreme anterior end surface; a sleeve
22
disposed at the center of its bottom end, with an internal threaded section
221
formed inside the sleeve
22
; a water sealing ring
3
inserted in the interior section of the sprayer head
2
sleeve
22
; a connector
4
having external threads
41
formed around the circumference of its front section as well as a tubular body
42
of an appropriate length at the end section of its circumference; and a water sealing ring on the circumference of a tubular body
42
; after the front section of the long tube
5
is ensleeved into the tubular body
42
formed at the end section and circumference of the connector
4
, since an expansive force is directly against the tubular body
42
at the bottom section of the connector
4
and the formed threads, the tubular body
42
section of the connector
4
and the long tube
5
are ensleeved by engagement onto the zigzag profile threads
52
along the circumference of the said tubular body
4
, thereby forming a unitary body; finally, the external threads
41
around the front section circumference of the connector
4
are fastened to the internal threads section
221
inside the sleeve
22
at the center and bottom section of the sprayer head
2
such that the sprayer head
2
, the water sealing ring
3
, the connector
4
, and the long tube
5
are similarly assembled into a completed water sprayer head assembly structure.
However, in the said structure, the section of the assembly structure between the connector
4
and the long tube
5
is similar; first, since a tubular body
42
of an appropriate length must be formed at the bottom section of the connector
4
such that when the connector
4
is fabricated, the said tubular body
42
necessarily involves increased material cost; second, when the long tube
5
is assembled to the tubular body
42
of the connector
4
to form a unitary body, after the front end of the long tube
5
is ensleeved onto the circumference of tubular body
42
formed at the end section of the connector
4
, due to the direct expansive force of the threads around the tubular body
42
at the bottom section of the connector
4
, the tubular body
42
section of the connector
4
and the long tube
5
are ensleeved by engagement onto the zigzag profile threads
52
around the circumference of the said tubular body
42
and, in addition to the similar unattractive appearance of the externally visible zigzag thread path, the tubular body
42
section of the connector
4
as well as the thickness of the long tube
5
cannot be too massive, otherwise, during the process of attaching the tubular body
42
of the connector to the front section of the long tube
5
, the shortcoming of ineffective engagement of the two occurs and, furthermore, since the material thickness is relatively thin, the shortcoming of reduced structural strength occurs; furthermore, due to the conjunction situation of the circumference of the tubular body
24
of the connector
4
with the ensleeving section at the front section of the long tube
5
and since it is not possible to install any water sealing ring onto the circumference of the tubular body
42
of the connector
4
, this causes the occurrence of the shortcoming of an ineffective and poor watertight closure formed between the two components which awaits improvement.
Therefore, in view of the existent s
Morris Lesley D.
Nguyen Dinh Q.
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