Patent US4710390A successfully refreshed from Google Patents.
Patent US5007757A successfully refreshed from Google Patents.
US5007757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid container
Assignee: Yoshino Kogyosho Co Ltd
•
Filing: 1989-08-30
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Granted: 1991-04-16
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Expires: 2009-08-30
Abstract
Abstract A liquid container comprising: a shaft; a fixed cylinder including a discharge valve and provided on an upper end of the shaft; a liquid supply means provided on an upper end of said fixed cylinder; a liquid receiving means provided in the shaft and slidable with respect to the shaft; a movable cylinder including a suction valve, said movable cylinder being fitted in an upper end of the liquid receiving means and slidable with respect to said fixed cylinder; springs for rearwardly biasing the movable cylinder; and a push button provided at a lower end of the shaft.
Inventors
- 👤 Shigeo Iizuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:01
CPC Classifications
B; B05; B05B; B05B11/00; B05B11/0005; B05B11/0035; A; A45; A45D; A45D34/00; A45D34/04; A45D34/042; B05B11/01; B05B11/10; B05B11/1001; B05B11/1004; B05B11/1005; B05B11/1008; B05B11/1042; B05B11/1052; B05B11/0037; B05B11/0038
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
157 words
A liquid container comprising: a shaft; a fixed cylinder including a discharge valve and provided on an upper end of the shaft; a liquid supply means provided on an upper end of said fixed cylinder; a liquid receiving means provided in the shaft and slidable with respect to the shaft; a movable cylinder including a suction valve, said movable cylinder being fitted in an upper end of the liquid receiving means and being slidable with respect to said fixed cylinder; springs for rearwardly biasing the movable cylinder; said fixed cylinder being rotatable with respect to the shaft, a rearwardly-directed abutting step portion being formed on the fixed cylinder, an abutting portion abutted with said abutting step portion being provided on the movable cylinder, and a push button provided at a lower end of the shaft, a stroke length of the push button being selectively adjustable by rotation of said fixed cylinder with respect to said movable cylinder.
Claim 2
Dependent Claim
157 words
A liquid container comprising: a shaft; a fixed cylinder including a discharge valve and provided on an upper end of the shaft; a liquid supply means provided on an upper end of said fixed cylinder; a liquid receiving means provided in the shaft and slidable with respect to the shaft; a movable cylinder including a suction valve, said movable cylinder being fitted in an upper end of the liquid receiving means and being slidable with respect to said fixed cylinder; springs for rearwardly biasing the movable cylinder; said fixed cylinder being rotatable with respect to the shaft, a rearwardly-directed abutting step portion being formed on the fixed cylinder, an abutting portion abutted with said abutting step portion being provided on the movable cylinder, and a push button provided at a lower end of the shaft, a stroke length of the push button being selectively adjustable by rotation of said fixed cylinder with respect to said movable cylinder.
Claim 3
Dependent Claim
23 words
The liquid container according to claim 1, wherein said step portion comprises a plurality of steps of which the axial height is different.
Claim 4
Dependent Claim
25 words
The liquid container according to claim 1, wherein said shaft comprises a barrel and a lip cylinder fitted in an upper end of said barrel.
Claim 5
Dependent Claim
53 words
The liquid container according to claim 3, wherein recesses are provided in an outer peripheral surface at a rear end of said fixed cylinder, corresponding to each of steps of said step portion, and a projection to be inserted into said recess is provided on an inner peripheral surface of said lip cylinder.
Claim 6
Dependent Claim
45 words
The liquid container according to claim 3, wherein a forwardly-directed step portion is provided in an inner peripheral surface of said lip cylinder, and a rearwardly-directed surface of said abutting portion is normally abutted with said forwardly-directed step portion by an urge of said springs.
Claim 7
Dependent Claim
38 words
The liquid container according to claim 3, wherein a notch is provided in a rear end of said fixed cylinder, and a stopper corresponding to said notch is provided on an inner peripheral surface of said lip cylinder.
Claim 8
Dependent Claim
45 words
The liquid container according to claim 3, wherein a longitudinal groove is provided in a rear portion of said lip cylinder, and a longitudinal strip to be inserted into said longitudinal groove is provided in a middle of an outer periphery of said movable cylinder.
Claim 9
Dependent Claim
45 words
The liquid container according to claim 1, wherein, said fixed cylinder is rotatable with respect to the shaft, a rearwardly-directed abutting step portion is formed on said movable cylinder, and an abutting portion abutted with the abutting step portion is provided on said fixed cylinder.
Claim 10
Dependent Claim
31 words
The liquid container according to claim 1, wherein said liquid supply means comprises a cylinder provided at the upper end of said fixed cylinder and a tip secured to said cylinder.
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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) | 1994-04-15 | 1994-10-15 | 1995-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-15 | 1998-10-15 | 1999-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-15 | 2002-10-15 | 2003-04-16 | $7700.00 | Window Closed / Lapsed |