Patent US3819343A successfully refreshed from Google Patents.
US3819343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medium for process of honing by extruding
Assignee: Extrude Hone LLC
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Filing: 1971-11-01
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Granted: 1974-06-25
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Expires: 1991-11-01
Abstract
Abstract A medium is disclosed useful in abrading or deburring metal parts by extruding the medium through openings which otherwise are quite often inaccessible. The medium comprises essentially guar gum, boric acid and borax, and one of the features of the invention is that the medium may be easily tailored to suit the size of the opening being abraded since optimum results are obtained using a less viscous medium in smaller openings and using a heavier viscosity of the medium when treating larger openings.
Inventors
- 👤 L Rhoades
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:43
CPC Classifications
B; B24; B24C; B24C1/00; B24C1/08; B24C1/083; B24C11/00; B24C11/005; C; C09; C09K; C09K3/00; C09K3/14; C09K3/1454; C09K3/1463
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
33 words
A medium as defined in claim 1, wherein said grit is chosen from the group consisting of boron carbide, silicon carbide, aluminum oxide, tin oxide, diamond dust, rouge, corundum, garnet, alundum and glass.
Claim 2
Dependent Claim
27 words
A medium as defined in claim 1, wherein said grit has a substantially uniform particle size from about 6 to 10 microns to about 16 mesh size.
Claim 3
Dependent Claim
18 words
A medium as defined in claim 1, wherein said water is from about 20 to about 50 parts.
Claim 4
Dependent Claim
26 words
A medium as defined in claim 1, wherein there is added to the pulverulent gel precursor about 0.5 percent by weight of high molecular weight poly-saccharide.
Claim 5
Dependent Claim
17 words
A medium as defined in claim 1, including less than one percent by volume of a biocide.
Claim 6
Dependent Claim
22 words
A medium as defined in claim 1, wherein said precursor and said water are mixed before said grit is added and mixed.
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) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |