US4739696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separative tea brewing apparatus
Assignee: Individual
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Filing: 1986-10-21
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Granted: 1988-04-26
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Expires: 2006-10-21
Abstract
Abstract A tea brewing apparatus comprising an upper container for simmering tea and a lower container for storing the tea brewed in the upper container. The bottom face of the upper container is provided with a tea dripping hole for allowing tea which was brewed in the upper container to flow into the lower container. A screen is disposed in the upper container and above the dripping hole so as to prevent tea leaves from dropping into the lower container. A sealing ball disposed inside the screen is attached to one end of a steel wire so that the sealing ball seals the dripping hole when it is positioned on the dripping hole. A first securement ball is attached to the other end of the steel wire outside the upper container so as to remotely control the movements of the sealing ball. A second securement ball is further attached to the steel wire at an appropriate distance from the first securement ball. The second securement ball together with a notch formed on the top edge of the upper container fixedly keeps the sealing ball in the raised position.
Inventors
- 👤 Shuenn T. Sheen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:36
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/02; A47J31/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
299 words
A separative tea brewing apparatus, comprising: (a) a lower container having a spout on an upper edge thereof; (b) an upper container, a circumferential wall thereof being stepped with a diameter of a lower portion thereof slightly smaller than that of an upper portion thereof, a bottom face of said upper container being inclined from a periphery thereof to a center thereof and being provided with a dripping hole in the center thereof, one larger retaining notch being formed on a top edge of said upper container, and one smaller retaining notch being formed on a lower portion in said larger retaining notch; (c) a screen disposed on said bottom face of said upper container, said screen being semispherical; (d) a sealing ball, a first securement ball, a second securement ball and a steel wire, said sealing ball being attached to one end of said steel wire and disposed inside said screen, said first securement ball being attached to the other end of said steel wire and being diposed outside said upper container said, second securement ball being disposed outside said screen and being attached to said steel wire and between said first securement ball and said sealing ball; (e) a top cover, said top cover may be disposed on the top edge of said upper container; (f) a handle attached to said lower container, one end of said handle contacting with said lower container, being arched and provided with a lateral groove, and an aperture being provided on said handle from said lateral groove to an outer part of said handle; and (g) a binding ring enclosing said lower container, said binding ring being provided with a hole on each end thereof, and said binding ring, together with a tightening screw, binding said handle onto said lower container.
Claim 2
Dependent Claim
299 words
A separative tea brewing apparatus, comprising: (a) a lower container having a spout on an upper edge thereof; (b) an upper container, a circumferential wall thereof being stepped with a diameter of a lower portion thereof slightly smaller than that of an upper portion thereof, a bottom face of said upper container being inclined from a periphery thereof to a center thereof and being provided with a dripping hole in the center thereof, one larger retaining notch being formed on a top edge of said upper container, and one smaller retaining notch being formed on a lower portion in said larger retaining notch; (c) a screen disposed on said bottom face of said upper container, said screen being semispherical; (d) a sealing ball, a first securement ball, a second securement ball and a steel wire, said sealing ball being attached to one end of said steel wire and disposed inside said screen, said first securement ball being attached to the other end of said steel wire and being diposed outside said upper container said, second securement ball being disposed outside said screen and being attached to said steel wire and between said first securement ball and said sealing ball; (e) a top cover, said top cover may be disposed on the top edge of said upper container; (f) a handle attached to said lower container, one end of said handle contacting with said lower container, being arched and provided with a lateral groove, and an aperture being provided on said handle from said lateral groove to an outer part of said handle; and (g) a binding ring enclosing said lower container, said binding ring being provided with a hole on each end thereof, and said binding ring, together with a tightening screw, binding said handle onto said lower container.
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) | 1991-04-26 | 1991-10-26 | 1992-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-26 | 1995-10-26 | 1996-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-26 | 1999-10-26 | 2000-04-26 | $7700.00 | Window Closed / Lapsed |