Prosecution Insights
Last updated: April 19, 2026
Application No. 18/524,191

PRESSURE-ACTIVATED TOOL

Non-Final OA §102§103
Filed
Nov 30, 2023
Examiner
SNYDER, ALAN W
Art Unit
3722
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Kennametal Inc.
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 9m
To Grant
94%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
561 granted / 679 resolved
+12.6% vs TC avg
Moderate +11% lift
Without
With
+10.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
36 currently pending
Career history
715
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
50.5%
+10.5% vs TC avg
§102
27.4%
-12.6% vs TC avg
§112
19.2%
-20.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 679 resolved cases

Office Action

§102 §103
DETAILED ACTION 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 Objections Claim 20 is objected to because of the following informalities: ‘increasingly its elastic deformation’ at Line 2 contains a minor grammatical error. Appropriate correction is required. Claim Rejections - 35 USC § 102 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. Claims 1, 5-10, 17 and 19-20 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Mahr (DE 901489). Regarding claim 1, Mahr discloses a cutting tool system comprising a tool body 2, a flexible internal pressure chamber 4 disposed within the tool body and at least one cutting edge 9 attached to the tool body. The flexible internal pressure chamber is configured to elastically deform, due to pressure within the flexible internal pressure chamber, which in turn deforms the tool body, which in turn changes a position of the at least one cutting edge attached to the tool body (Paragraphs [0001] and [0007-0008] of the attached English translation). Regarding claim 5, Mahr discloses the exterior of the tool body being stiff (Paragraph [0007] of the attached English translation mentions the body being welded or soldered, processes which are performed on metallic members). Regarding claim 6, Mahr discloses the tool body comprising a generally cylindrical shape when the flexible internal pressure chamber is in an unpressurized state (see e.g. Figs. 1b and 2b). Regarding claim 7, Mahr discloses the tool body comprising a non-uniform shape when the flexible internal pressure chamber is in an unpressurized state (see e.g. Figs. 1a and 2a). Regarding claim 8, Mahr discloses that when the flexible internal pressure chamber is under the pressure within the internal pressure chamber, at least one portion of the tool body outwardly expands (e.g. the exterior sleeve 2 with cutting edges 9 thereon) and at least another portion of the tool body inwardly contracts (e.g. the exterior of sleeve 1 which is pressed radially inward by the pressure in chamber 4). Regarding claim 9, Mahr discloses the flexible internal pressure chamber being configured to increasingly elastically deform as the pressure within the flexible internal pressure chamber rises, thereby causing the tool body to increasingly deform as the pressure within the flexible internal pressure chamber increases, thereby causing the position of the at least one cutting edge 9 attached to the tool body to increasingly change as the pressure within the flexible internal pressure chamber increases. Regarding claim 10, Mahr discloses the change in position of the at least one cutting edge being attached to the tool body is independent of how quickly the cutting tool system rotates by nature of staying at the predetermined diameter when the appropriate pressure is applied. Regarding claim 17, Mahr discloses an inherent method of cutting comprising controlling a pressure within a flexible internal pressure chamber 4 of a tool body to elastically deform the flexible internal pressure chamber. A stiff, exterior portion of the tool body 2 deforms due to the deformation of the flexible internal pressure chamber, and a position of at least one cutting edge 9 attached to the stiff, exterior portion of the tool body changes due to the deformation of the stiff, exterior portion of the tool body (Paragraphs [0001] and [0007-0008] of the attached English translation). Regarding claim 19, Mahr discloses the stiff, exterior portion of the tool body deforming comprising at least one portion of the tool body outwardly expanding (e.g. the exterior sleeve 2 with cutting edges 9 thereon) and at least another portion of the tool body inwardly contracting (e.g. the exterior of sleeve 1 which is pressed radially inward by the pressure in chamber 4). Regarding claim 20, Mahr discloses the flexible internal pressure chamber being configured to increasingly elastically deform as the pressure within the flexible internal pressure chamber rises, thereby causing the stiff, exterior portion of the tool body to increasingly deform as the pressure within the flexible internal pressure chamber increases, thereby causing the position of the at least one cutting edge 9 attached to the stiff, exterior portion of the tool body to increasingly change as the pressure within the flexible internal pressure chamber increases. 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, 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 2-4, 11-16 and 18 are rejected under 35 U.S.C. 103 as being unpatentable over Mahr (DE 901489) in view of Hyatt et al. (US 6196773, hereinafter ‘Hyatt’). Regarding claims 2-4, Mahr discloses a manually adjustable tool, either by a manually depressed piston 8 (Fig. 1b) or a manually rotated nut 13 (Fig. 2b) to increase/decrease pressure. Mahr does not disclose the claimed CNC control device. Hyatt discloses a similar cutting tool system 100 to increase/decrease pressure to expand/contract a cutting tool. The system comprises a CNC control device 104 to assist in controlling pressure within the internal pressure chamber 112/114 of the system, with a pressure sensor 140 disposed within the internal pressure chamber and a valve 168 connected to the flexible internal pressure chamber. It would have been obvious to one having ordinary skill in the art at the time of filing to provide the valve, sensor and CNC control of Hyatt to the manually adjusted tool of Mahr, in order to more quickly and accurately adjust the tool. See also MPEP 2144.04, III. Regarding claim 11, Mahr discloses a cutting tool system comprising a tool body comprising a stiff, exterior portion 2, a flexible internal pressure chamber 4 disposed within the tool body, supporting the stiff, exterior portion of the tool body and at least one cutting edge 9 attached to the stiff, exterior portion of the tool body. The flexible internal pressure chamber is configured to elastically deform, due to pressure within the flexible internal pressure chamber, which in turn deforms the tool body, which in turn changes a position of the at least one cutting edge attached to the tool body (Paragraphs [0001] and [0007-0008] of the attached English translation). Mahr discloses a manually adjustable tool, either by a manually depressed piston 8 (Fig. 1b) or a manually rotated nut 13 (Fig. 2b) to increase/decrease pressure. Mahr does not disclose the claimed CNC control device. Hyatt discloses a similar cutting tool system 100 to increase/decrease pressure to expand/contract a cutting tool. The system comprises a CNC control device 104 to assist in controlling pressure within the internal pressure chamber 112/114 of the system, with a pressure sensor 140 disposed within the internal pressure chamber connected to the CNC controller to monitor the pressure therein and a valve 168 connected to the flexible internal pressure chamber controlled by the CNC controller. It would have been obvious to one having ordinary skill in the art at the time of filing to provide the valve, sensor and CNC control of Hyatt to the manually adjusted tool of Mahr, in order to more quickly and accurately adjust the tool. See also MPEP 2144.04, III. Regarding claim 12, Mahr discloses the tool body comprising a generally cylindrical shape when the flexible internal pressure chamber is in an unpressurized state (see e.g. Figs. 1b and 2b). Regarding claim 13, Mahr discloses the tool body comprising a non-uniform shape when the flexible internal pressure chamber is in an unpressurized state (see e.g. Figs. 1a and 2a). Regarding claim 14, Mahr discloses that when the flexible internal pressure chamber is under the pressure within the internal pressure chamber, at least one portion of the tool body outwardly expands (e.g. the exterior sleeve 2 with cutting edges 9 thereon) and at least another portion of the tool body inwardly contracts (e.g. the exterior of sleeve 1 which is pressed radially inward by the pressure in chamber 4). Regarding claim 15, Mahr discloses the flexible internal pressure chamber being configured to increasingly elastically deform as the pressure within the flexible internal pressure chamber increases, thereby causing the tool body to increasingly deform as the pressure within the flexible internal pressure chamber increases, thereby causing the position of the at least one cutting edge 9 attached to the stiff, exterior portion of the tool body to increasingly change as the pressure within the flexible internal pressure chamber increases. Regarding claim 16, Mahr discloses the change in position of the at least one cutting edge being attached to the tool body is independent of how quickly the cutting tool system rotates by nature of staying at the predetermined diameter when the appropriate pressure is applied. Regarding claim 18, Mahr discloses a manually adjustable tool, either by a manually depressed piston 8 (Fig. 1b) or a manually rotated nut 13 (Fig. 2b) to increase/decrease pressure. Mahr does not disclose the claimed CNC control device. Hyatt discloses a similar cutting tool system 100 to increase/decrease pressure to expand/contract a cutting tool. The system comprises a CNC control device 104 to assist in controlling pressure within the internal pressure chamber 112/114 of the system. It would have been obvious to one having ordinary skill in the art at the time of filing to provide the CNC control of Hyatt to the manually adjusted tool of Mahr, in order to more quickly and accurately adjust the tool. See also MPEP 2144.04, III. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Weidmer (US 20080219787) and DE 20216739 disclose elements of or similar to the instant invention. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Alan Snyder whose telephone number is (571)272-4603. The examiner can normally be reached M-R 7:00a - 5:00p. 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, Sunil K Singh can be reached at 571-272-3460. 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. /Alan Snyder/Primary Examiner, Art Unit 3722
Read full office action

Prosecution Timeline

Nov 30, 2023
Application Filed
Mar 18, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12583036
Conduit Reamer
2y 5m to grant Granted Mar 24, 2026
Patent 12576453
MACHINING SYSTEM AND CUTTING INSERT AND METHODS
2y 5m to grant Granted Mar 17, 2026
Patent 12569953
CONTROL DEVICE AND CONTROL METHOD FOR MACHINE TOOL
2y 5m to grant Granted Mar 10, 2026
Patent 12544838
CUTTING ELEMENT AND THE USE THEREOF
2y 5m to grant Granted Feb 10, 2026
Patent 12539544
BORING TOOL AND CUTTING INSERT
2y 5m to grant Granted Feb 03, 2026
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
83%
Grant Probability
94%
With Interview (+10.9%)
2y 9m
Median Time to Grant
Low
PTA Risk
Based on 679 resolved cases by this examiner. Grant probability derived from career allow rate.

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