Illumination – Supports – Modifier support
Reexamination Certificate
2000-03-15
2002-03-19
O'Shea, Sandra (Department: 2875)
Illumination
Supports
Modifier support
C362S356000, C362S357000, C362S352000
Reexamination Certificate
active
06357897
ABSTRACT:
BACKGROUND OF THE INVENTION
1) Field of the Invention
The invention herein relates to a sideless collapsible frame lampshade wherein two upper and lower circular frames are utilized as the top and bottom structural elements on which a pliant material is installed and held taut by means of a middle frame that reinforces the separation of the upper and lower circular frames to thereby form a collapsible lampshade structure that does not require lateral frame members.
2) Description of the Prior Art
Current conventional lampshades are fabricated of a hard material uititarily formed into a certain shape or of rigid materials that function as frame members on which a pliant material is installed to construct lampshades of various shapes; as indicated in
FIG. 1
,
FIG. 2
,
FIG. 3
, and
FIG. 4
, the conventional table lamp
10
has a socket pipe
12
projecting from the center of a lamp base
11
and the lampshade
13
is comprised of a lower circular frame
131
, an upper circular frame
132
, and a plurality of lateral frame members
133
distributed in between and conjoining the two upper and lower frames; a support ring
134
is situated at the center of the lower circular frame
131
, with a plurality of the coupling frame members
135
conjoining it to the upper circular frame
132
; a pliant material
14
enshrouded over the two upper and lower frames and, furthermore, draped over the lateral frame members
133
to form a permanent lampshade
13
structure; the support ring
134
of the said lampshade
13
is directly sleeved over the tip of the socket pipe
12
and thereby installed to the lamp base
11
to complete the assembly of a table lamp
10
structure. In another conventional table lamp
20
, the socket pipe
22
projects from the center of a lamp base
21
and a tubular U-shaped fixture
23
is supported in a saddle mount
211
horizontally inserted through the lower extent of the said socket pipe
22
and the said fixture
23
is of a narrow gauge and bent into curve, with a stud
231
disposed at the center of its top extent and insertion ends
232
at the bottom two sides such that the insertion ends
232
of the said fixture
23
can be placed into the saddle mount
221
; the lampshade
24
is comprised of a lower circular frame
241
and an upper circular frame
242
and a plurality of lateral frame members
245
distributed in between and conjoining the two upper and lower frames; furthermore, a support ring
244
is situated at the center of the upper circular frame
242
, with a plurality of coupling frame members
243
conjoining it to the upper circular frame
132
and then a pliant material
25
enshrouded over the two upper and lower frames and, furthermore, draped over the lateral frame members
245
to form a permanent lampshade
24
structure; the stud
231
at the top of the fixture
23
is inserted into the lampshade
24
support ring
244
to complete the assembly of a table lamp
20
structure. Referring to FIG.
2
and
FIG. 4
, the said pliant material
14
and
25
is not shown to more clearly depict the internal structure of the said lampshades
13
and
24
.
In the structures of the said conventional lampshades
13
and
24
, rigid materials serve as structural members, with the pliant material installed on the structural members to fabricate lampshades of fixed shape; the shortcomings are that since considerable material is utilized to craft the structural members and, furthermore, the two upper and lower frames must be conjoined together by means of lateral frame members, the greater fabrication process and time involved increases the overall production cost; furthermore, since the conventional lampshades are of invariable shape and physical dimensions, the shipping cubic dimensions are larger and, furthermore, stacking without readily incurring damage is not possible, shipping costs are also higher. In view of the existent technological problems of conventional lampshade structures, the inventor of the invention herein conducted extensive research and innovated numerous improvements which culminated in the successful development of several collapsible lampshade structures that do not require lateral frame members, thereby thoroughly eliminating the drawbacks of the conventional products.
SUMMARY OF THE INVENTION
Therefore, the objective of the invention herein is to provide a sideless collapsible frame lampshade wherein two upper and lower circular frames are utilized as the upper and lower structural elements on which a pliant material is installed and held taut by means of a middle frame that reinforces the separation of the upper and lower circular frames to thereby form a collapsible lampshade structure that does not require lateral frame members and, since the middle frame allows for simple assembly and disassembly, the present invention is of an improved structure that minimizes packaging dimensions, reduces shipping costs, and facilitates efficient storage.
To enable the examination committee to further understand the advantageous structural features and innovative content of the invention herein, the brief description of the drawings below is followed by the detailed description of the embodiments.
REFERENCES:
patent: 4383291 (1983-05-01), Gall
patent: 5375048 (1994-12-01), Barnes
DelGizzi Ronald E.
O'Shea Sandra
Rosenberg , Klein & Lee
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