Patent US3672355A successfully refreshed from Google Patents.
US3672355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-massager
Assignee: Hitachi Ltd
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Filing: 1970-12-28
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Granted: 1972-06-27
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Expires: 1990-12-28
Abstract
Abstract An electro-massager comprising a casing having a handle, a pair of motors disposed in the casing for actuating a pair of vibrating heads, each including an eccentric balance weight therein, which are, respectively, rotatably coupled with the motors through flexible coupling means, whereby the eccentric balance weights are subjected to rotation in the vibrating heads thereby to both vibrate and massage the objective portion of the body inserted therebetween.
Inventors
- 👤 Hiroshi Ogawa
- 👤 Sigeto Yamane
- 👤 Hisasi Nakagawa
- 👤 Akinari Uchida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:40
CPC Classifications
A; A61; A61H; A61H23/00; A61H23/02; A61H23/0254; A61H23/0263; A61H2023/0272
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
88 words
An electro-massager comprising a casing, a pair of vibrator heads projecting from one side of said casing in spaced relationship, each of said vibrator heads having an eccentric balance weight rotatably mounted therein, drive means disposed in said casing for rotating the balance weights in said vibrator heads, and flexible coupling means for coupling said drive means to said vibrator heads so as to effect rotation of said balance weights while permitting flexible movement of said heads by a body part inserted in the space between said heads.
Claim 2
Dependent Claim
88 words
An electro-massager comprising a casing, a pair of vibrator heads projecting from one side of said casing in spaced relationship, each of said vibrator heads having an eccentric balance weight rotatably mounted therein, drive means disposed in said casing for rotating the balance weights in said vibrator heads, and flexible coupling means for coupling said drive means to said vibrator heads so as to effect rotation of said balance weights while permitting flexible movement of said heads by a body part inserted in the space between said heads.
Claim 3
Dependent Claim
35 words
An electro-massager as defined in claim 1, wherein said vibrator heads extend out of said casing at an angle to one another so that the space between the heads increases with distance from the casing.
Claim 4
Dependent Claim
74 words
An electro-massager as defined in claim 2, wherein each vibrator head includes a rotatable shaft carrying said eccentric balance weight and said drive means includes a drive shaft for each vibrator head, said flexible coupling means including a helical spring connecting said rotatable shaft in the vibrator head to the drive shaft in said drive means so as to cause vibration and swing movement in the heads by rotation of the eccentric balance weight.
Claim 5
Dependent Claim
38 words
An electro-massager as defined in claim 1, further including a fan driven by said drive means for blowing heated air generated by the components in said casing out of the casing in the direction of said vibrator heads.
Claim 6
Dependent Claim
34 words
An electro-massager as defined in claim 1, wherein each of said vibrator heads is provided with an elastic outer ring shaped in the form of a polygon having a plurality of extending convex portions.
Claim 7
Dependent Claim
74 words
An electro-massager as defined in claim 1, wherein each vibrator head includes a rotatable shaft carrying said eccentric balance weight and said drive means includes a drive shaft for each vibrator head, said flexible coupling means including a helical spring connecting said rotatable shaft in the vibrator head to the drive shaft in said drive means so as to cause vibration and swing movement in the heads by rotation of the eccentric balance weight.
Claim 8
Dependent Claim
53 words
An electro-massager as defined in claim 6, wherein said drive means includes an electric motor for each vibrator head mounted within said casing, and said flexible coupling means additionally includes a second helical spring interconnecting the body of said motor with the vibrator head and a flexible housing for said second helical spring.
Claim 9
Dependent Claim
35 words
An electro-massager as defined in claim 7, wherein said vibrator heads extend out of said casing at an angle to one another so that the space between the heads increases with distance from the casing.
Claim 10
Dependent Claim
38 words
An electro-massager as defined in claim 8, further including a fan driven by said drive means for blowing heated air generated by the components in said casing out of the casing in the direction of said vibrator heads.
Claim 11
Dependent Claim
34 words
An electro-massager as defined in claim 9, wherein each of said vibrator heads is provided with an elastic outer ring shaped in the form of a polygon having a plurality of extending convex portions.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |