Patent US4901890A successfully refreshed from Google Patents.
US4901890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Watering system automatic additive dispenser kit
Assignee: Individual
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Filing: 1989-05-01
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Granted: 1990-02-20
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Expires: 2009-05-01
Abstract
Abstract An automatic additive dispenser and system includes a container adapted to be releasably attached to a housing and having a rupturable seal along with means for rupturing the seal and enabling additive to enter a flow of water through the housing, in response to initial water flow through the housing. Additives contained in the bottle are prevented from entering the system before the seal is ruptured, thus enabling predisposition of the bottle in the system for later dispersement of additive without premature leakage of the additives into the system.
Inventors
- 👤 Michael B. Mivelaz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:58
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/04; A01C23/042; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1789; Y10T137/3149; Y10T137/3185; Y10T137/3294; Y10T137/3331
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
106 words
An automatic additive dispenser kit for converting an anti-syphon valve into an automatic additive dispenser system, said kit comprising: a container means for holding a supply of additive and having a rupturable seal; a cap adapted for replacing an existing cap of an anti-syphon valve, said cap including means for releasably attaching the container means, with additive, thereto; and means for rupturing said rupturable seal when the container is attached to the cap, and introducing a stream of water inside said container means to flush substantially all of the additive therein out of said container means in response to flow of water through the anti-syphon valve.
Claim 2
Dependent Claim
106 words
An automatic additive dispenser kit for converting an anti-syphon valve into an automatic additive dispenser system, said kit comprising: a container means for holding a supply of additive and having a rupturable seal; a cap adapted for replacing an existing cap of an anti-syphon valve, said cap including means for releasably attaching the container means, with additive, thereto; and means for rupturing said rupturable seal when the container is attached to the cap, and introducing a stream of water inside said container means to flush substantially all of the additive therein out of said container means in response to flow of water through the anti-syphon valve.
Claim 3
Dependent Claim
41 words
The automatic additive dispenser kit according to claim 1 wherein the means for rupturing said rupturable seal and introducing a stream of water includes means for enabling rupture of said rupturable seal upon initial flow of water through the anti-syphon valve.
Claim 4
Dependent Claim
42 words
The automatic additive dispenser kit according to claim 2 wherein said means for rupturing said rupturable seal and introducing a stream of water including means for diverting a portion of the water flow into said container in order to purge additive therefrom.
Claim 5
Dependent Claim
23 words
The automatic additive dispenser kit according to claim 3 further comprising a plurality of interchangeable containers with additive therein and having rupturable seals.
Claim 6
Dependent Claim
94 words
An automatic additive dispenser kit for converting an anti-syphon valve into an automatic additive dispenser system, said kit comprising: a cap adapted for replacing an existing cap on a housing of an anti-syphon valve, said cap including means for releasably attaching a container with additive thereto, said container having a rupturable seal; and means for rupturing said rupturable seal and introducing a stream of water inside said container to force substantially all of the additives therein out of said container and through the housing in response to a flow of water through the housing.
Claim 7
Dependent Claim
94 words
An automatic additive dispenser kit for converting an anti-syphon valve into an automatic additive dispenser system, said kit comprising: a cap adapted for replacing an existing cap on a housing of an anti-syphon valve, said cap including means for releasably attaching a container with additive thereto, said container having a rupturable seal; and means for rupturing said rupturable seal and introducing a stream of water inside said container to force substantially all of the additives therein out of said container and through the housing in response to a flow of water through the housing.
Claim 8
Dependent Claim
50 words
The automatic additive dispenser kit according to claim 5 wherein the means for rupturing said rupturable seal and introducing a stream of water inside said container to force the additives therein out of said container is operative for rupturing said rupturable seal upon initial flow of water through the housing.
Claim 9
Dependent Claim
52 words
The automatic additive dispenser kit according to claim 6 wherein said means for rupturing said rupturable seal and introducing a stream of water inside said container for forcing the additive therein out of the container and through the housing includes a hollow needle having a tip adapted for piercing said rupturable seal.
Claim 10
Dependent Claim
31 words
The automatic additive dispenser system according to claim 7 further comprising anti-syphon means for preventing a back flow of water through the housing from the water outlet through the water inlet.
Claim 11
Dependent Claim
49 words
The automatic additive dispenser system according to claim 8 wherein said means for rupturing said rupturable seal and enabling additive to enter a flow of water comprises means for sealing off said anti-syphon means when water is flowing through the housing from the water inlet to the water outlet.
Claim 12
Dependent Claim
22 words
The automatic additive system according to claim 9 further comprising a plurality of interchangeable containers with additive therein and having rupturable seals.
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) | 1993-02-19 | 1993-08-21 | 1994-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-19 | 1997-08-21 | 1998-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-19 | 2001-08-21 | 2002-02-20 | $7700.00 | Window Closed / Lapsed |