DETAILED ACTION
The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA .
Claims 1-2 and 5 are amended
Claim Rejections - 35 USC § 103
The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action:
A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102 of this title, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made.
Claims 1 and 3-5 are rejected under 35 U.S.C. 103 as being unpatentable over Yu ( CN 204011021 ) in view of Turpin (US 9437348 B2).
Regarding Claim 1:
Yu teaches that a primary coil suitable to use in a transformer, comprising:
a primary winding bobbin (not explicitly labeled; i.e. first insulating layer; see Abstract) on which a layer of a primary winding (4, Fig, 2; see para 0025) and at least one layer of a fixed number of 1 to 3 layers of an interlayer (2; para 0026) insulation material are wound alternately;
wherein the interlayer insulation material and the primary winding are impregnated with an epoxy (see para 0026); and
Yu does not explicitly teach the interlayer insulation material is a nonwoven fabric.
However, Turpin taught in claim 1 (see also Abstract) that a nonwoven paper layer directly fused on one or both sides with a nonwoven fabric layer wherein one or both of the nonwoven paper and nonwoven fabric are electrically insulating.
It would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to have interlayer insulation material is a nonwoven fabric so that traps tiny pockets of air to block heat transfer, control sound, and manage moisture.
Regarding Claim 3:
As applied to claim 1, the modified Yu teaches that at least one layer of the interlayer insulation material and a high voltage (see para 0025) screen disposed over an external layer (3) of the primary winding, wherein at least one layer of the interlayer insulation material and a grounding screen (see para 0028) are disposed over the high voltage screen.
Regarding Claim 4:
As applied to claim 3, the modified Yu teaches the high voltage screen is made of a semiconducting paper sheet (i.e. copper foil; para 0026) {or semiconducting paper tape, or a semiconducting nonwoven sheet or a semiconducting nonwoven tape, or a semiconducting foam}.
Regarding Claim 5:
Yu teaches that transformer, comprising:
a core (8, Fig. 2; see para 0025);
a primary winding (4, Fig, 2; see para 0025; and
a secondary winding (6);
wherein the primary winding is a primary coil, the primary coil comprising:
a primary winding bobbin (not explicitly labeled; i.e. first insulating layer; see Abstract) on which a layer of a primary winding and at least one layer of a fixed number of 1 to 3 layers of an interlayer insulation material are wound alternately;
wherein the interlayer insulation material and the primary winding are
wherein the interlayer insulation material and the primary winding are impregnated with an epoxy (see para 0026); and
Yu does not explicitly teach the interlayer insulation material is a nonwoven fabric.
However, Turpin taught in claim 1 (see also Abstract) that a nonwoven paper layer directly fused on one or both sides with a nonwoven fabric layer wherein one or both of the nonwoven paper and nonwoven fabric are electrically insulating.
It would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to have interlayer insulation material is a nonwoven fabric so that traps tiny pockets of air to block heat transfer, control sound, and manage moisture.
Claim 2 is rejected under 35 U.S.C. 103 as being unpatentable over Yu in view of Turpin and further in view of Maruyama (US 20190043656 A1)..
Regarding Claim 2:
As applied to claim 1, Yu teaches the interlayer insulation material except the interlayer insulation material is a nonwoven fabric made of polyethylene terephthalate, PET .
However, Maruyama taught in para 0071 that an insulation paste is applied on a film 70 made of polyethylene terephthalate (PET),
It would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to have the interlayer insulation material is a nonwoven fabric made of polyethylene terephthalate, PET to provide high tensile strength, impact resistance, and durability.
Claim 6 is rejected under 35 U.S.C. 103 as being unpatentable over Yu in view of Turpin and further in view of view of Outten (US 20130106546 A1).
Regarding Claim 6:
As applied to claim 5, the modified Yu does not teach that a housing, the housing being made of dielectric material {and/or being grounded}.
However, Outten teaches that a housing (14, Fig. 6), the housing being made of dielectric material (see para 0039 or claim 3).
It would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to have a housing, the housing being made of dielectric material to provide better insulation for the transformer to protect coil components from short circuit and damages.
Response to Arguments
Applicant's arguments have been fully considered. However, upon further consideration, a new ground(s) of rejection is made in view of different interpretation of the previously applied reference, and/or newly found prior art reference(s).
Conclusion
Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a).
A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any extension fee pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the date of this final action.
The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. A list of pertinent prior art is attached in form 892.
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/KAZI HOSSAIN/
Examiner, Art Unit 2837
/SHAWKI S ISMAIL/Supervisory Patent Examiner, Art Unit 2837
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