Patent US4945900A successfully refreshed from Google Patents.
US4945900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller massaging apparatus
Assignee: NIHONKENKOZOSHINKENKYUKAI Co Ltd A CORP OF JAPAN
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Filing: 1989-09-05
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Granted: 1990-08-07
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Expires: 2009-09-05
Abstract
Abstract The present invention relates to a roller massaging apparatus performing massage by applying pushing pressure on a human body by means of a pushing pressure roller. The pushing pressure roller is supported rotatably on the operating hole of the pushing pressure roller 3 for inserting the operating shaft 2 is formed in an inner diameter large enough for the shaft diameter of the operating shaft 2, and a cavity part provided by the hollow part of the pushing pressure rollers is formed between the operating shaft and the inner peripheral surface of the pushing pressure roller on the operating shaft 2. In such a construction, even if the pushing pressure roller is deformed elastically, this deformation is absorbed by the cavity part, and the rolling operation of the pushing pressure roller 3 is not obstructed. In addition, a soft material giving a comfortable touch with the body can be used for the pushing pressure roller, resulting in an improvement in feeling during use.
Inventors
- 👤 Isamu Masuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:38
CPC Classifications
A; A61; A61H; A61H15/00; A61H15/0092; A61H2015/0007; A61H2015/0014; A61H2201/00; A61H2201/14; A61H2201/1454; A61H2201/16; A61H2201/1683; A61H2201/169; A61H2201/1695; A61H2203/00; A61H2203/04; A61H2203/0443; A61H2203/0468; A61H2205/00; A61H2205/08; A61H2205/081
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
200 words
A massage device comprising a longitudinal operating shaft means having a diameter, a first end, and a second end opposite said first end; a pushing pressure roller means arranged about said operating shaft means for applying localized pressure to a body, said pushing pressure roller means having a first end, a second end, an outer surface and an inner peripheral surface, said inner peripheral surface defining a longitudinal hollow core extending from said first end of said roller means to said second end of said roller means, said hollow core having a diameter of greater size than said diameter of said operating shaft means; first bearing means and second bearing means engaging, respectively, said first and second ends of said roller means with said shaft means for rotatably supporting said roller means about said shaft means, said hollow core forming a cavity between said first and second bearing means wherein said inner peripheral surface of said roller means is arranged in spaced relation to said shaft means, said cavity extending continuously from said first bearing means to said second bearing means; and first and second hand grip means connected, respectively, to said first and second ends of said shaft means.
Claim 2
Dependent Claim
200 words
A massage device comprising a longitudinal operating shaft means having a diameter, a first end, and a second end opposite said first end; a pushing pressure roller means arranged about said operating shaft means for applying localized pressure to a body, said pushing pressure roller means having a first end, a second end, an outer surface and an inner peripheral surface, said inner peripheral surface defining a longitudinal hollow core extending from said first end of said roller means to said second end of said roller means, said hollow core having a diameter of greater size than said diameter of said operating shaft means; first bearing means and second bearing means engaging, respectively, said first and second ends of said roller means with said shaft means for rotatably supporting said roller means about said shaft means, said hollow core forming a cavity between said first and second bearing means wherein said inner peripheral surface of said roller means is arranged in spaced relation to said shaft means, said cavity extending continuously from said first bearing means to said second bearing means; and first and second hand grip means connected, respectively, to said first and second ends of said shaft means.
Claim 3
Dependent Claim
103 words
A massage device according to claim 1, wherein said first hand grip means comprises a first metal pipe means having an inner end and a outer end, said inner end being connected to said first end of said shaft means and abutting said first bearing means, and a first grip connected to said outer end; and said second hand grip means comprising a second metal pipe means having an inner end and an outer end, said inner end being connected to said second end of said shaft means and abutting said second bearing means, and a second grip connected to said outer end.
Claim 4
Dependent Claim
13 words
A massage device according claim 1, wherein said roller means comprises soft rubber.
Claim 5
Dependent Claim
53 words
A massage device according to claim 1, said roller means comprising first and second spherical bodies and a relatively small diameter portion integrally connecting said first and second spherical bodies, said outer surface of said roller means comprising a plurality of small semi-spherical protrusions integrally formed in said first and second spherical bodies.
Claim 6
Dependent Claim
40 words
A massage device according to claim 1, wherein said roller means is deformable, said deformation being absorbed by said cavity formed between said first and second bearing means, whereby smooth rolling of the roller means on a body is maintained.
Claim 7
Dependent Claim
25 words
A massage device according to claim 1, wherein pressure applied to said roller means is transmitted to said operating shaft means through said bearing means.
Claim 8
Dependent Claim
80 words
A massage device according to claim 1, each of said first and second bearing means having an inner surface and an outer surface, said outer surface abutting said hand grip means, said device further including first and second annular metal fitting means fitted about said operating shaft means and engaging the inner surface, respectively, of said first and second bearing means, each bearing means being held in captive engagement between its respective annular metal fitting means and hand grip means.
Claim 9
Dependent Claim
35 words
A massage device according to claim 7, wherein said operating shaft means further comprises annular groove means adjacent said first and second bearing means for receiving, respectively, said first and second annular metal fitting means.
Claim 10
Dependent Claim
44 words
A massage device according to claim 3, further comprising annular recesses in the inner peripheral surface of said roller means, said annular recesses being formed at the first and second ends of said roller meanss for receiving therein said first and second bearing means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |