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International application No. Applicant's or agent's file reference
PCT/US2019/037599 8592.3006.001
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
18 June 2019 29 June 2018
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.

A compressor includes a stationary housing (58) disposed about a central axis (86) and having a radially inner surface defining a plurality of circumferentially spaced cavities (90) opening into an interior space (92) of the housing. The compressor further includes a plurality of fluid volume control members (80), each of which is disposed within one of the plurality of cavities and defines a fluid chamber within the cavity sealed relative to the interior space. An eccentric shaft (72) is disposed within the interior space (92) of the housing (58) and configured for rotation about the central axis (86). A hypocycloid rotor (76) is disposed within the interior space of the housing and supported on the eccentric shaft. The rotor (76) defines a plurality of lobes (104) configured for movement into and out of each cavity (90) responsive to rotation of the shaft (72)to displace the fluid volume control member (80) in each cavity (90) and adjust a volume of each fluid chamber (94).

6. Drawings
The figure of the drawings to be published with the abstract is Figure No.     3    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
none of the figures is to be published with the abstract.


     F04B 43/00 (2006.01)i; F04B 43/02 (2006.01)i; F04B 45/04 (2006.01)i; F04B 45/02 (2006.01)i; F04B 9/04 (2006.01)i; F04B 35/01 (2006.01)i; F04B 27/04 (2006.01)i; F04B 1/04 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC


Minimum documentation searched (classification system followed by classification symbols):
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
EPO-Internal, WPI Data


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
DE 1428007 A1 (BECKER ERICH) 05 December 1968 (1968-12-05)
figure 4
FR 909344 A (F.SICARD - A.JULLIEN) 06 May 1946 (1946-05-06)
figure 2
GB 961872 A (GIRODIN MARIUS GEORGES HENRI) 24 June 1964 (1964-06-24)
figures 2,4
DE 102005052623 A1 (SELEON GMBH [DE]) 03 May 2007 (2007-05-03)
figures 4,5
Special categories of cited documents:
document defining the general state of the art which is not considered to be of particular relevance
document cited by the applicant in the international application
earlier application or patent but published on or after the international filing date
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
document referring to an oral disclosure, use, exhibition or other means
document published prior to the international filing date but later than the priority date claimed
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
document member of the same patent family


Patent document cited in search report Publication date
Patent family member(s) Publication date
DE 1428007 A1
05 December 1968
FR 909344 A
06 May 1946
GB 961872 A
24 June 1964
ES 271522 A1
FR 1278136 A
GB 961872 A
01 March 1962
08 December 1961
24 June 1964
DE 102005052623 A1
03 May 2007
DE 102005052623 A1
WO 2007051454 A2
03 May 2007
10 May 2007
Name and mailing address of the ISA/:
European Patent Office
P.B. 5818, Patentlaan 2, 2280 HV Rijswijk,
Telephone No. (+31-70)340-2040
Facsimile No. (+31-70)340-3016
Date of the actual completion of the international search:
28 August 2019
Date of mailing of the international search report:
12 September 2019
Authorized officer:
Olona Laglera, C
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