US4638520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothbrush capable of multidirectional brushing
Assignee: Individual
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Filing: 1984-01-23
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Granted: 1987-01-27
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Expires: 2004-01-23
Abstract
Abstract A toothbrush is provided with bristles to brush and clean the teeth. Since there are cavities between neighboring teeth it is useful to exercise a multidirectional brushing of the teeth and cavities. The handle of the tooth brush is therefor provided with a fluid motor which is driven by fluid, for example by fluid from the water pipe which is available in the living quarters. The fluid motor revolves a rotary member wherein a space with a therein reciprocable piston is provided. The piston rod engages one end of a lever of a transfer arrangement and swings the lever. The other end of the lever then swings the outgoing shaft of the housing. By attaching a tooth brush to the swinging outgoing shaft the brush can do a multi directional movement for better brushing of the teeth and the cavities between the teeth.
Inventors
- 👤 Karl Eickmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:46
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/16; A61C17/22; A61C17/32; A61C17/34; A61C17/349; A46; A46B; A46B9/00; A46B9/02; A46B9/04; A46B9/045; A61C17/24; A61C17/30; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
392 words
A device which has chambers which are able to contain fluid, wherein inlet means and outlet means are provided to lead fluid to and away from said chambers, said chambers are provided to a rotor which is revolvably borne in said device and surrounded by a stroke guide for guiding the increase and decrease of said volume of said chambers in combination with means to periodically at each single revolution of said rotor to increase and decrease the volumes of said chambers, individually for each of said chambers when fluid flows through said chambers, said device contains also a medial portion, a shaft with said shaft pivotally borne in the housing of said device, a control body to control the flow of said fluid to said chambers, a transfer arrangement and an improvement with said improvement comprising, a combination, wherein said transfer arrangement includes a transfer lever which is swingably borne substantially by its medial portion on a bearing in the housing of said device while said lever has two ends with one of its ends subjectable to thrust by a piston rod and the other of its ends connected to said shaft, wherein said medial portion is provided with a rotary member, wherein a radially extending space is provided in said rotary member with a reciprocable piston provided in said space with a piston rod extending from said piston through a portion of said space and through a portion of said rotary member outwards of said rotary member to be able to engage a ring provided between said piston rod and said one end of said lever, and, wherein said rotary member is provided with ports and passages to transfer fluid from one of its ports to one end of said space and from the other of its ports to the other end of said space when said ports revolve over respective control ports which are provided on said control body, by which said fluid in said ends of said space provides thrusts onto the ends of said piston to press said piston towards one end of said ends of said space and thereby to press said piston rod against said ring, said ring against said one end of said lever to swing said lever whereby the other end of said lever pivots said shaft in said housing of said device.
Claim 2
Independent Claim
392 words
A device which has chambers which are able to contain fluid, wherein inlet means and outlet means are provided to lead fluid to and away from said chambers, said chambers are provided to a rotor which is revolvably borne in said device and surrounded by a stroke guide for guiding the increase and decrease of said volume of said chambers in combination with means to periodically at each single revolution of said rotor to increase and decrease the volumes of said chambers, individually for each of said chambers when fluid flows through said chambers, said device contains also a medial portion, a shaft with said shaft pivotally borne in the housing of said device, a control body to control the flow of said fluid to said chambers, a transfer arrangement and an improvement with said improvement comprising, a combination, wherein said transfer arrangement includes a transfer lever which is swingably borne substantially by its medial portion on a bearing in the housing of said device while said lever has two ends with one of its ends subjectable to thrust by a piston rod and the other of its ends connected to said shaft, wherein said medial portion is provided with a rotary member, wherein a radially extending space is provided in said rotary member with a reciprocable piston provided in said space with a piston rod extending from said piston through a portion of said space and through a portion of said rotary member outwards of said rotary member to be able to engage a ring provided between said piston rod and said one end of said lever, and, wherein said rotary member is provided with ports and passages to transfer fluid from one of its ports to one end of said space and from the other of its ports to the other end of said space when said ports revolve over respective control ports which are provided on said control body, by which said fluid in said ends of said space provides thrusts onto the ends of said piston to press said piston towards one end of said ends of said space and thereby to press said piston rod against said ring, said ring against said one end of said lever to swing said lever whereby the other end of said lever pivots said shaft in said housing of said device.
Claim 3
Dependent Claim
34 words
The device of claim 1, wherein said shaft is with one of its ends pivotably borne in a pivot center in said housing and said transfer arrangement pivots said shaft around said pivot center.
Claim 4
Dependent Claim
82 words
The device of claim 1, wherein said control body is provided with a connection, wherein said connection can be fixed to a hose, wherein said hose can be fixed to the water pipe in the common household, wherein said fluid is water supplied from said water pipe, and, wherein said shaft is connected to a toothbrush, whereby said toothbrush reciprocates and may be used for cleaning of teeth and cavities therebetween, when said device is held in the hand of a person.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-26 | 1990-07-28 | 1991-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-26 | 1994-07-28 | 1995-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-26 | 1998-07-28 | 1999-01-27 | $7700.00 | Window Closed / Lapsed |