Prosecution Insights
Last updated: April 19, 2026
Application No. 18/690,576

SEALING STRUCTURE, INNER WHEEL DRIVE SYSTEM AND ASSEMBLY METHOD

Non-Final OA §102§103§112
Filed
Mar 08, 2024
Examiner
CUMAR, NATHAN
Art Unit
3675
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Schaeffler Technologies AG & Co. Kg
OA Round
1 (Non-Final)
78%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
93%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allow Rate
927 granted / 1183 resolved
+26.4% vs TC avg
Moderate +15% lift
Without
With
+15.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
40 currently pending
Career history
1223
Total Applications
across all art units

Statute-Specific Performance

§103
41.3%
+1.3% vs TC avg
§102
27.5%
-12.5% vs TC avg
§112
27.0%
-13.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1183 resolved cases

Office Action

§102 §103 §112
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 10 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Independent Claim 10 recites “a dustproof member” in line 1 and 4. It is unclear whether the limitation in line 1 and line 4 is the same or different. Appropriate correction is required. Examiner considers the invention has one dustproof member. There are no Claim(s) that depend(s) from the rejected claim(s) 10. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-2, 5-7, 9-12, 15, and 19-20 is/are rejected under 35 U.S.C. 102 (a) (1) as being anticipated by D1 (Yang et al., CN 209448548). For claim 1, D1 discloses, in Figure 1, a sealing structure for sealing a radial clearance between a first component and a second component (Oil seal 5 is disposed in a radial clearance between first component 2 and second component 3.), wherein the sealing structure comprises: a sealing member (5), sealed in the radial clearance; and a dustproof member (6), located on an axial outer side of the sealing member (5), wherein a first end of the dustproof member (6) is fixed on the first component (2), an opposite second end extends in a radial direction so as to cover the radial clearance, and the second end and the second component (3) are spaced apart and partially overlap with each other in an axial direction (Figure 1.) PNG media_image1.png 791 925 media_image1.png Greyscale For claim 2, D1 discloses the sealing structure of claim 1, wherein the dustproof member (6) comprises a mounting part (as shown below) arranged on an axial inner side of the first end; the first component (2) is provided with a fitting part (as shown below) corresponding to the mounting part; and the mounting part can be fitted with the fitting part to fix the dustproof member (Figure 1.) For claim 5, D1 discloses the sealing structure of claim 1, wherein the first component (2) is provided with a stopping part in the axial direction (as shown above), the stopping part does not exceed an axial end face of the first component (2) in a direction of the axial outer side of the first component (Figure 1), and the stopping part is used for being stopped on an axial inner side of the dustproof member (6) to position the dustproof member (Figure 1 and as shown above.) For claim 6, D1 discloses the sealing structure of claim 11, wherein the dustproof member (6) comprises a dustproof segment (61) arranged on an axial inner side of the second end, and the dustproof segment (61) and the second component (3) partially overlap with each other in the axial direction (Figure 1.) For claim 7, D1 discloses the sealing structure of claim 16, wherein the second component (3) is provided with an avoidance part (the space between 61 and 3 defines the avoidance part), the avoidance part corresponds to the dustproof segment, and a labyrinth clearance having at least one bend is formed between the avoidance part and the dustproof segment (As shown above.) For claim 9, D1 discloses an inner wheel drive system, comprising: a first component (2, 1), which is a rotating shaft (1) of the inner wheel drive system; a second component (3), which is a housing of the inner wheel drive system, wherein the housing surrounds the rotating shaft in a circumferential direction; the sealing structure of claim 1; and a wheel rim (23), which is pressed against an axial outer side of the dustproof member (Figure 1.) For claim 10, D1 discloses, in Figure 1, a method for assembling a dustproof member (6) in a sealing structure, the sealing structure being used for sealing a radial clearance between a first component and a second component (Oil seal 5 is disposed in a radial clearance between first component 2 and second component 3.), the sealing structure comprising a sealing member (5) and a dustproof member (6), and the sealing member (5) being sealed in the radial clearance (Figure 1), characterized in that the dustproof member has a first end and a second end opposite to each other (Figure 1), the first end is provided with a mounting part (as shown above), and the first component (2) is provided with a fitting part (as shown above) corresponding to the mounting part and is provided with a stopping part (as shown above); and during assembly, the mounting part is fitted into the fitting part and a position of the dustproof member (6) is adjusted until the stopping part is stopped on an axial inner side of the dustproof member (Figure 1 and as shown above), so that the second end and the second component (3) are spaced apart and partially overlap with each other in an axial direction (Figure 1 and as shown above.) For claim 11, D1 discloses a sealing structure for sealing a radial clearance between a first component and a second component (Oil seal 5 is disposed in a radial clearance between first component 2 and second component 3.) comprising: a sealing member (5) sealed in the radial clearance between the first component (2) and the second component (3); and a dustproof member (6) located on an axial outer side of the sealing member (5), wherein a first end of the dustproof member is fixed on the first component (2), wherein an opposite second end of the dustproof member (6) extends in a radial direction to cover the radial clearance (Figure 1 and as shown above.) For claim 12, D1 discloses the sealing structure of claim 12, wherein the dustproof member (6) comprises a mounting part (as shown above) arranged on an axial inner side of the first end; the first component (2) comprises a fitting part (as shown above) corresponding to the mounting part; wherein the mounting part is fitted with the fitting part to fix the dustproof member (6; Figure 1 and as shown above.) For claim 15, D1 discloses the sealing structure of claim 11, wherein the first component (2) comprises a stopping part (as shown above) in the axial direction, the stopping part does not exceed an axial end face of the first component in a direction of the axial outer side of the first component, and the stopping part is used for being stopped on an axial inner side of the dustproof member to position the dustproof member (Figure 1 and as shown above.) For claim 19, D1 discloses the sealing structure of claim 11, wherein the first component (2, 1) comprises a rotating shaft (1) and the second component (3) comprises a housing surrounding the rotating shaft (Figure 1.) For claim 20, D1 discloses an inner wheel drive system comprising: a first component (2, 1), wherein the first component comprises a rotating shaft (1); a second component (3), wherein the first component comprises a rotating shaft (1) and the second component comprises a housing (3) surrounding the rotating shaft (1) in a circumferential direction; the sealing structure of claim 11; and a wheel rim (23), wherein the wheel rim is secured against an axial outer side of the dustproof member (6; Figure 1.) Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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, 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 3-4 and 13-14 is/are rejected under 35 U.S.C. 103 as being unpatentable over D1 (Yang et al., CN 209448548) in view of D2 (Brister et al., US Pub. App. 2005-0052043). For claim 3, D1 discloses the sealing structure of claim 2, wherein the mounting part is a first axial extension segment protruding from the first end toward the first component (2), the fitting part is an axial fitting groove located on an end face of an axial outer side of the first component (2), and the first axial extension segment is fitted into the axial fitting groove in an interference mode. D2 teaches an assembly where the inner leg 60 and the dust guard diameter 4 has an interference fit (Para. [0030]) for secured arrangement and for effective sealing between the joint (abstract.) It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 such the first axial extension segment is fitted into the axial fitting groove in an interference mode, as taught by D2 with a reasonable expectation of success of having a secured joint. For claim 4, D1 discloses the sealing structure of claim 3, wherein the first axial extension segment abuts against a first side wall of the axial fitting groove (Figure 1 and as shown above.), and a radial avoidance clearance is formed between the first axial extension segment and a second side wall of the axial fitting groove (Figure 1 and as shown above), wherein the first side wall is located on a radial inner side of the axial fitting groove, and the second side wall is located on a radial outer side of the axial fitting groove (Figure 1 and as shown above.) For claim 13, D1 discloses the sealing structure of claim 12, wherein the mounting part is a first axial extension segment protruding from the first end toward the first component (2), the fitting part is an axial fitting groove located on an end face of an axial outer side of the first component (2), and the first axial extension segment is fitted into the axial fitting groove in an interference mode. D2 teaches an assembly where the inner leg 60 and the dust guard diameter 4 has an interference fit (Para. [0030]) for secured arrangement and for effective sealing between the joint (abstract.) It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 such the first axial extension segment is fitted into the axial fitting groove in an interference mode, as taught by D2 with a reasonable expectation of success of having a secured joint. For claim 14, D1 discloses the sealing structure of claim 13, wherein the first axial extension segment abuts against a first side wall of the axial fitting groove (Figure 1 and as shown above.), and a radial avoidance clearance is formed between the first axial extension segment and a second side wall of the axial fitting groove (Figure 1 and as shown above), wherein the first side wall is located on a radial inner side of the axial fitting groove, and the second side wall is located on a radial outer side of the axial fitting groove (Figure 1 and as shown above.) Claim(s) 8 and 18 is/are rejected under 35 U.S.C. 103 as being unpatentable over D1 (Yang et al., CN 209448548) in view of D3 (Haepp et al., US Pub. App. 2014-0003753). For claim 8, D1 discloses the sealing structure of claim 1, wherein the axial outer side of the sealing member (5) is further provided with a sealing lip (Figure 1), but does not disclose the sealing lip has an annular sealing groove arranged toward a radial outer side. D3 teaches a sealing system with sealing lip 17 having a groove 30 arranged toward a radial outer side of 12, and the groove 30 facilitates to repel dirty water (Para. [0025].) It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 with a sealing lip having an annular sealing groove arranged toward a radial outer side, as taught by D3 with a reasonable expectation of success providing a system to repel dirty water. For claim 18, D1 discloses the sealing structure of claim 11, wherein the axial outer side of the sealing member (5) comprises a sealing lip (Figure 1), but does not disclose the sealing lip has an annular sealing groove arranged toward a radial outer side. D3 teaches a sealing system with sealing lip 17 having a groove 30 arranged toward a radial outer side of 12, and the groove 30 facilitates to repel dirty water (Para. [0025].) It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 with a sealing lip having an annular sealing groove arranged toward a radial outer side, as taught by D3 with a reasonable expectation of success providing a system to repel dirty water. Conclusion Prior art made of record and not relied upon is considered pertinent to applicant's disclosure and provides examples of similar inventions. There are no suggestions in the prior art of record for combining any of the references to arrive at as claimed. A few of the prior art cited but not applied includes Seno (US 10,119,571); Seki (US 11,796,004); and Hubbard (US Pub. 2011-0064347). Any inquiry concerning this communication or earlier communications from the examiner should be directed to NATHAN CUMAR whose telephone number is (571)270-3112. The examiner can normally be reached Monday thru Friday, 8:00 am to 5:00 pm EST. Examiner interviews are available via telephone, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, KRISTINA FULTON can be reached at 571-272-7376. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /NATHAN CUMAR/Primary Examiner, Art Unit 3675
Read full office action

Prosecution Timeline

Mar 08, 2024
Application Filed
Mar 18, 2026
Non-Final Rejection — §102, §103, §112 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
78%
Grant Probability
93%
With Interview (+15.0%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 1183 resolved cases by this examiner. Grant probability derived from career allow rate.

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