Prosecution Insights
Last updated: April 19, 2026
Application No. 18/180,460

CONVOLUTE FOR A BELLOWS OF A GANGWAY AND BELLOWS OF A GANGWAY

Non-Final OA §102
Filed
Mar 08, 2023
Examiner
LIN, CHENG XI
Art Unit
3615
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Dellner Couplers AB
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
3y 3m
To Grant
99%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allow Rate
258 granted / 305 resolved
+32.6% vs TC avg
Moderate +14% lift
Without
With
+14.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
26 currently pending
Career history
331
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
55.4%
+15.4% vs TC avg
§102
23.4%
-16.6% vs TC avg
§112
17.2%
-22.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 305 resolved cases

Office Action

§102
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 . DETAILED ACTION This is the first non-final office action on the merits. Claims 14-27 are currently pending. Priority Acknowledgment is made of applicant’s claim for foreign priority under 35 U.S.C. 119 (a)-(d). The certified copy has been filed in parent Application No. EP22275029.1, filed on 03/11/2022. Information Disclosure Statement The information disclosure statement (IDS) submitted on 03/08/2023 has been received and considered by the examiner. Drawings The drawings are accepted. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 20 and 23 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Goebels et al. (EP 3750767 A1, provided). Regarding claim 20, Goebels teaches (Fig. 1 and 8-9): A convolute for a bellows (bellows 10) of a gangway (passage area 11), the convolute comprising a first rim (annotated Fig. 8 below) and a second rim (annotated Fig. 8 below) arranged next to the first rim; a sheet like convolute material (material of the bellows 10) that extends from the first rim to the second rim (annotated Fig. 8 below), wherein in an operational position of the convolute (10), the convolute material takes a trough-shaped form between the first rim and the second rim (Fig. 8); a drainage hole (defined by inlet 25 and outlet 26) in the convolute material (Fig. 8); a closure (valve body 14) to close the drainage hole (para. 0056); a connection (base body 20) between the first rim and/or the second rim and the closure (annotated Fig. 8 below), wherein increasing the distance between a part of the first rim and a part of the second rim (as the pressure difference decreases), causes the connection between the first rim and/or the second rim and the closure to at least partially move the closure (14) and to at least partially open the drainage hole (see explanation below). Regarding claim 23, Goebels teaches (Fig. 1 and 8-9): A method for draining liquid from a convolute for a bellows (10) of a gangway (passage area 11)(Fig. 1), the convolute comprising a first rim and a second rim arranged next to the first rim (annotated Fig. 8 below), a sheet like convolute material (material of the bellows 10) that extends from the first rim to the second rim (annotated Fig. 8 below), wherein in an operational position of the convolute (10), the convolute material takes a trough-shaped form between the first rim and the second rim (Fig. 8); a drainage hole (defined by inlet 25 and outlet 26) in the convolute material (Fig. 8); a closure (valve body 14) to close the drainage hole (para. 0056); a connection (base body 20) between the first rim and/or the second rim and the closure (annotated Fig. 8 below), the method comprising: increasing the distance between a part of the first rim and a part of the second rim (as the pressure difference decreases), to thereby cause the connection between the first rim and/or the second rim and the closure to at least partially move the closure (14) and to at least partially open the drainage hole (see explanation below). It is noted that Goebels teaches (Fig. 8): when pressure difference occurs, the bellows section 10’ is deflected and comes into contact with opposing surface bodies 35 from the inside, decreasing the distance between the rims and closing the inlet or outlet (para. 0056, lines 5-12). As the pressure difference subsides, the bellows section 10’ returns to its undeflected state, increasing the distance between the rims and at least partially open the drainage hole. PNG media_image1.png 360 426 media_image1.png Greyscale Allowable Subject Matter Claims 14-19 and 21-22 are allowed Claims 24-27 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claims. The following is a statement of reasons for the indication of allowable subject matter: Regarding claim 14 and its depending claim(s) 15-19, the prior art fails to teach a drainage control band, wherein the closure forms part of the drainage control band or is attached to the drainage control band; wherein a first band point of the drainage control band is attached to or resting on a first convolute point, the first convolute point located on the first rim or on the convolute material, but closer to the first rim than to the second rim; wherein a second band point of the drainage control band is attached to or resting on a second convolute point, the second convolute point located on the second rim or on the convolute material, but closer to the second rim than to the first rim. While the closest prior art reference Goebels teaches (Fig. 1 and 8): A convolute for a bellows (bellows 10) of a gangway (passage area 11)(Fig. 1), the convolute (10) comprising: a first rim and a second rim arranged next to the first rim (annotated Fig. 8 below); a sheet like convolute material (material of the bellows 10) that extends from the first rim to the second rim (annotated Fig. 8 below), wherein in an operational position of the convolute (10), the convolute material takes a trough-shaped form between the first rim and the second rim (Fig. 8); a drainage hole (defined by inlet 25 and outlet 26) in the convolute material (Fig. 8); a closure (valve body 14) to close the drainage hole (para. 0056), the examiner finds no obvious reason to modify Goebels such that a drainage control band for operating the closure is provided with two band points attached to the first and second rims respectively. Such a modification would require improper hindsight reasoning. It is noted that while Goebels teaches (Fig. 1): an actuating device (16) for actuating the closure (valve body 14) depending on the detected pressure difference (Goebels, Claim 3), Goebels does not describe the actuating device as a drainage control band. Goebels describes the valve body as electromagnetically actuated (para. 0014), and the examiner finds no obvious reason to modify Goebel’s actuator motor to be a drainage control band connected to the rims and closure. Claims 21-22 are allowable for the same reasons as claims 14-19 above. Regarding claim 24 and its depending claim(s) 25-27, the prior art fails to teach connecting the first rim and/or the second rim and the closure via a drainage control band. While the closest prior art reference Goebels teaches (Fig. 1 and 8): A convolute for a bellows (bellows 10) of a gangway (passage area 11)(Fig. 1), the convolute (10) comprising: a first rim and a second rim arranged next to the first rim (annotated Fig. 8 below); a sheet like convolute material (material of the bellows 10) that extends from the first rim to the second rim (annotated Fig. 8 below), wherein in an operational position of the convolute (10), the convolute material takes a trough-shaped form between the first rim and the second rim (Fig. 8); a drainage hole (defined by inlet 25 and outlet 26) in the convolute material (Fig. 8); a closure (valve body 14) to close the drainage hole (para. 0056), the examiner finds no obvious reason to modify Goebels such that a drainage control band for operating the closure is provided with two band points attached to the first and second rims. Such a modification would require improper hindsight reasoning. It is noted that while Goebels teaches (Fig. 1): an actuating device (16) for actuating the closure (valve body 14) depending on the detected pressure difference (Goebels, Claim 3), Goebels does not describe the actuating device as a drainage control band. Goebels describes the valve body as electromagnetically actuated (para. 0014), and the examiner finds no obvious reason to modify Goebel’s actuator motor to be a drainage control band connected to the rims and closure. PNG media_image1.png 360 426 media_image1.png Greyscale Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure of rail vehicle gangway with bellows and drainage control: US-2468590-A, US-8297197-B2, US-8485108-B2, US-11718330-B2, US-12227043-B2, US-12485935-B2, KR-200396268-Y1, CN-202106979-U, CN-104512209-A, EP-4186771-A1. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHENG XI LIN whose telephone number is (571)272-6102. The examiner can normally be reached Mon. through Fri. 9:00am to 6:00pm EST. Examiner interviews are available via telephone, in-person, 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, Samuel (Joe) Morano can be reached at 5712726684. 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. /CHENG LIN/Examiner, Art Unit 3615
Read full office action

Prosecution Timeline

Mar 08, 2023
Application Filed
Dec 16, 2025
Non-Final Rejection — §102 (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
85%
Grant Probability
99%
With Interview (+14.2%)
3y 3m
Median Time to Grant
Low
PTA Risk
Based on 305 resolved cases by this examiner. Grant probability derived from career allow rate.

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