Patent US4662879A successfully refreshed from Google Patents.
US4662879A
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Rumen bolus
Assignee: STC PLC
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Filing: 1985-09-13
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Granted: 1987-05-05
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Expires: 2005-09-13
Abstract
Abstract A rumen bolus for supplying a mineral supplement to a ruminant animal comprises a water soluble glass incorporating the mineral and contained in an apertured insert, e.g. plastics, housing. Typically the glass is in the form of tubes or pellets so as to provide a substantially constant dissolution rate.
Inventors
- 👤 Cyril F. Drake
- 👤 Mary Tripp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:34
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0053; A61K9/0068
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
91 words
A rumen bolus for the simultaneous delivery of a plurality of mineral supplement to a ruminant animal, the bolus including an insoluble housing having a plurality of openings through which, in use, the intestinal fluids of the animal penetrate into the interior of the housing, and a plurality of water soluble bodies, at least one for each said mineral supplement, contained in said housing and each consisting essentially of a water soluble glass, and wherein each said glass body incorporates the corresponding mineral supplement as an oxide constituent of the glass.
Claim 2
Dependent Claim
91 words
A rumen bolus for the simultaneous delivery of a plurality of mineral supplement to a ruminant animal, the bolus including an insoluble housing having a plurality of openings through which, in use, the intestinal fluids of the animal penetrate into the interior of the housing, and a plurality of water soluble bodies, at least one for each said mineral supplement, contained in said housing and each consisting essentially of a water soluble glass, and wherein each said glass body incorporates the corresponding mineral supplement as an oxide constituent of the glass.
Claim 3
Dependent Claim
17 words
A bolus as claimed in claim 1, wherein the glass bodies are in the form of platelets.
Claim 4
Dependent Claim
24 words
A bolus as claimed in claim 2, wherein said platelets are 5 to 10 mm in diameter and 1 to 3 mm in thickness.
Claim 5
Dependent Claim
15 words
A bolus as claimed in claim 1, wherein the glass bodies are in tubular form.
Claim 6
Dependent Claim
12 words
A bolus as claimed in claim 2, wherein said glass contains copper.
Claim 7
Dependent Claim
29 words
A bolus as claimed in claim 3, wherein said glass contains a mineral supplement selected for the group consisting of selenium, iron, cobalt, zinc, iodine, magnesium and mixtures thereof.
Claim 8
Dependent Claim
13 words
A bolus as claimed in claim 1, and further including an organic material.
Claim 9
Dependent Claim
14 words
A bolus as claimed in claim 7, wherein said organic material comprises an anthelmintic.
Claim 10
Dependent Claim
17 words
A bolus as claimed in claim 1, wherein each said water soluble body comprises a glass/polymer composite.
Claim 11
Dependent Claim
14 words
A bolus as claimed in claim 1, wherein said housing comprises a plastics mesh.
Claim 12
Dependent Claim
18 words
A bolus as claimed in claim 1, wherein said housing comprises a rigid body with a snap-on lid.
References Cited (Backward Citations)
US3760806A
Cited
US4055178A
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US4407786A
Cited
US4449981A
Cited
US4381780A
Cited
GB2125698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-04 | 1990-11-03 | 1991-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-04 | 1994-11-03 | 1995-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-04 | 1998-11-03 | 1999-05-05 | $7700.00 | Window Closed / Lapsed |