Prosecution Insights
Last updated: August 06, 2026
Application No. 18/879,311

CONNECTION DEVICE FOR ELECTRICALLY AND HYDRAULICALLY CONNECTING HOLLOW CONDUCTORS OF AN INTERNALLY COOLED ELECTRICAL MACHINE

Non-Final OA §102§Other
Filed
Dec 27, 2024
Priority
Jul 01, 2022 — DE 10 2022 116 519.1 +1 more
Examiner
ANDREWS, MICHAEL
Art Unit
Tech Center
Assignee
Dynamic E Flow GmbH
OA Round
1 (Non-Final)
64%
Grant Probability
Moderate
1-2
OA Rounds
1y 3m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allowance Rate
799 granted / 1242 resolved
+4.3% vs TC avg
Strong +25% interview lift
Without
With
+24.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
39 currently pending
Career history
1278
Total Applications
across all art units

Statute-Specific Performance

§101
1.4%
-38.6% vs TC avg
§103
52.4%
+12.4% vs TC avg
§102
24.5%
-15.5% vs TC avg
§112
21.1%
-18.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1242 resolved cases

Office Action

§102 §Other
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 . This Office Action is responsive to the Applicant's communication filed 27 December 2024. In view of this communication, claims 1, 3, 5-7, and 9 are now pending in the application. Priority Receipt is acknowledged of papers submitted under 35 U.S.C. 119(a)-(d) or (f), 365(a) or (b), or 386(a), which papers have been placed of record in the file. Information Disclosure Statement The information disclosure statement(s) submitted on 27 December 2024 was/were filed before mailing of the first action on the merits. Accordingly, the information disclosure statement(s) is/are being considered by the examiner. Disclosure The specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant's cooperation is requested in correcting any errors of which applicant may become aware in the specification. 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 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) 1, 3, 5-7, and 9 is/are rejected under 35 U.S.C. 102(a)(1) and/or 102(a)(2) as being anticipated by Schweinert (US 2017/0126084 A1), hereinafter referred to as “Schweinert”. Regarding claim 1, Schweinert discloses a connection device [10] for the electrical and hydraulic connection of a plurality of electrical hollow conductors [1] of an internally cooled electrical machine (fig. 1-3; ¶ 0079-0081), comprising: a connection piece [17] with which the hollow conductors [1] can be electrically and hydraulically connected (fig. 3, 9-10; ¶ 0088), the connection piece [17] including: PNG media_image1.png 384 746 media_image1.png Greyscale one or more interfaces [13] operably associated with the connection piece [17] and configured to attach ends of the electrical hollow conductor [1] (fig. 3, 9-10; ¶ 0081-0087); a hollow interior [12] communicating with the hollow conductors [1] (¶ 0081); and a section [11b] designed as a pipe socket [11b] (fig. 3, 9-10; ¶ 0081-0082; section [11c] of the housing [11] sockets into section [11b] of the housing [11]); an electrical connection [15] operably associated with the connection piece [17] and configured to connect the hollow conductors [1] to an electrical potential (fig. 3; ¶ 0081, 0088), wherein an electrically insulating pipe [16] {is} hydraulically connected to the connection piece [17] and the hollow conductor(s) [1] (fig. 3; ¶ 0081-0083);and an adapter element [11a] having a first connection, to which the pipe socket [11b] of the connecting piece [17] is connected, and a second connection, to which the electrically insulating pipe [16] is connected (fig. 3, 9-10; ¶ 0081; “housing 11 is configured as a two-piece housing, but can also be configured as a single-piece or as a multiple-piece housing” being connected to the conductors on one side and connected to the coolant pipe on another side); wherein the first connection and the second connection are designed as a crimp connection (¶ 0088; while threaded connections are shown the male and female connections can alternatively be “tightly coiled or rather crimped”). Regarding claim 3, Schweinert discloses the connection device [10] according to claim 1, wherein the pipe [16] is designed as an electrically insulating hose [16] (fig. 3; ¶ 0081; “electrically insulating separator element”). Regarding claim 5, Schweinert discloses the connection device [10] according to claim 3, wherein the hose [16] is a Teflon hose or a PEEK capillary (¶ 0017; the coolant lines can be made from “polytetrafluoroethylene (PTFE, Teflon®)”). Regarding claim 6, Schweinert discloses the connection device [10] according to claim 1, wherein the connection piece [17] has one or more openings for connecting ends of the hollow conductors [1] or an additional plate-shaped element with one or more openings for connecting ends of the hollow conductors [1] (fig. 3, 9-10; ¶ 0088-0089). Regarding claim 7, Schweinert discloses the connection device [10] according to claim 1, wherein the connecting piece [17] or the adapter element [11a] has an external thread (fig. 9; ¶ 0084; the male connector is shown having threads on its outer circumferential surface). Regarding claim 9, Schweinert discloses the connection device [10] according to claim 1, wherein the hollow conductor [1] includes one or more windings (fig. 1-2, 18-22; ¶ 0079; “the electrical hollow conductor 1 is very advantageously suited for the continuous winding of an electromagnetic coil of a small or mid-sized electromagnetic machine”). Citation of Relevant Prior Art The prior art made of record and not relied upon is considered pertinent to applicant’s disclosure. Prior art: Freely et al. (US 2022/0069670 A1) discloses a connection device for the electrical and hydraulic connection of hollow conductors. Osama et al. (US 2022/0069655 A1) discloses hollow conductors for use in electric machines, defining a coolant channel therein. Breznak et al. (US 2007/0158397 A1) discloses a connection device for the electrical and hydraulic connection of hollow conductors used in the armature of a generator. Iversen et al. (US 6,784,573 B1) discloses a connection device for the electrical and hydraulic connection of hollow conductors of an armature. Thiard-Laforet et al. (US 5,659,944) discloses a connection device for the electrical and hydraulic connection of hollow conductors of a stator winding. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Michael Andrews whose telephone number is (571)270-7554. The examiner can normally be reached on Monday-Thursday, 8:30am-3:00pm. 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, Oluseye Iwarere can be reached at 571-270-5112. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /Michael Andrews/ Primary Examiner, Art Unit 2834
Read full office action

Prosecution Timeline

Dec 27, 2024
Application Filed
Jul 16, 2026
Non-Final Rejection mailed — §102, §Other (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12700769
FLYWHEEL SYSTEMS WITH MULTIPLE GENERATOR COILS
3y 8m to grant Granted Aug 04, 2026
Patent 12689261
HYBRID MODULE INCLUDING MOTOR ROTOR CONNECTOR FOR CONNECTING TO A TORQUE CONVERTER
2y 9m to grant Granted Jul 21, 2026
Patent 12683475
LINEAR MOTOR FOR A TRANSPORT SYSTEM
2y 8m to grant Granted Jul 14, 2026
Patent 12671289
ELECTRICAL MACHINE WITH ROTOR SHAFT COOLING CHANNELS
2y 9m to grant Granted Jun 30, 2026
Patent 12660993
LOCOMOTION SYSTEM FOR A MEDICAL DEVICE
3y 3m to grant Granted Jun 23, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
64%
Grant Probability
89%
With Interview (+24.6%)
2y 10m (~1y 3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1242 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month