US3814332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for crushing fragile material
Assignee: Individual
•
Filing: 1972-08-21
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Granted: 1974-06-04
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Expires: 1992-08-21
Abstract
Abstract An improved apparatus for disposing of broken articles, especially broken pieces of fragile material, such as glass, glassware, pottery and earthernware. According to this invention, a large quantity of such material can be disposed of continuously without stopping the operation; the dust produced while the material is being crushed can quickly be settled down, so that immediately upon completion of the crushing operation, the apparatus may be opened to discharge the crushed particles without contaminating the ambient air; sieve means is provided for separating uncrushable articles, such as metal and plastic pieces, from the crushed material; and the crushing means is so shaped and disposed relative to the chamber housing the means that no vacant space is formed between the means and the chamber to allow any of the material getting jammed with the crushing means and preventing its smooth operation.
Inventors
- 👤 K Nakao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:33
CPC Classifications
B; B02; B02C; B02C19/00; B02C19/0056; B02C19/0075; B02C19/0081; B02C19/0087; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/60
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
164 words
An apparatus for disposing of broken articles, such as broken glass, glassware and pottery, comprising: a crushing chamber having rotary crushing means installed in the lower portion thereof, said rotary crushing means having an inverted frustoconical shape in vertical cross section, and comprising: a circular bottom wall; a round side wall spreading outwardly from the outer periphery of said bottom wall; and a plurality of upright hitting plates radially extending from the vertical axis of rotation of said crushing means, and joined to said bottom wall and said side wall; means for settling down the dust rising from said articles while said articles are being crushed in said crushing chamber; duct means connected to a closable opening provided in the side wall of saId crushing chamber, and extending downwardly from said opening along one side of said crushing chamber; and box means positioned below said duct means for receiving said articles after they have been subjected to a crushing operation in said crushing chamber.
Claim 2
Independent Claim
164 words
An apparatus for disposing of broken articles, such as broken glass, glassware and pottery, comprising: a crushing chamber having rotary crushing means installed in the lower portion thereof, said rotary crushing means having an inverted frustoconical shape in vertical cross section, and comprising: a circular bottom wall; a round side wall spreading outwardly from the outer periphery of said bottom wall; and a plurality of upright hitting plates radially extending from the vertical axis of rotation of said crushing means, and joined to said bottom wall and said side wall; means for settling down the dust rising from said articles while said articles are being crushed in said crushing chamber; duct means connected to a closable opening provided in the side wall of saId crushing chamber, and extending downwardly from said opening along one side of said crushing chamber; and box means positioned below said duct means for receiving said articles after they have been subjected to a crushing operation in said crushing chamber.
Claim 3
Dependent Claim
49 words
The apparatus as defined in claim 1, wherein said crushing means is positioned adjacent to the bottom of said crushing chamber, and secured to an upright rotary shaft extending through the center of said bottom of said crushing chamber into said vertical axis of rotation of said crushing means.
Claim 4
Dependent Claim
31 words
The apparatus as defined in claim 1, wherein the upper circumferential edge of said crushing means is slidably supported in a sealed manner on the inner wall of said crushing chamber.
Claim 5
Dependent Claim
54 words
The apparatus as defined in claim 1, wherein the upper edges of said hitting plates are dimensioned to extend no higher than the upper circumferential edge of said side wall, whereby none of the articles introduced into said chamber can get jammed between said hitting plates and the side wall of said crushing chamber.
Claim 6
Dependent Claim
33 words
The apparatus as defined in claim 1, wherein said closable opening is provided in said side wall of said crushing chamber in a position above the upper circumferential edge of said crushing means.
Claim 7
Independent Claim
124 words
An apparatus for disposing of broken articles, such as broken glass, glassware and pottery, comprising: a crushing chamber having rotary crushing means installed in the lower portion thereof; means for settling down the dust rising from said articles while said articles are being crushed in said crushing chamber; duct means connected to a closable opening provided in the side wall of said crushing chamber in a position above the upper circumferential edge of said crushing means, and extending downwardly from said opening along one side of said crushing chamber; door means installed swingably about one edge of said opening; and box means positioned below said duct means for receiving said articles after they have been subjected to a crushing operation in said crushing chamber.
Claim 8
Independent Claim
124 words
An apparatus for disposing of broken articles, such as broken glass, glassware and pottery, comprising: a crushing chamber having rotary crushing means installed in the lower portion thereof; means for settling down the dust rising from said articles while said articles are being crushed in said crushing chamber; duct means connected to a closable opening provided in the side wall of said crushing chamber in a position above the upper circumferential edge of said crushing means, and extending downwardly from said opening along one side of said crushing chamber; door means installed swingably about one edge of said opening; and box means positioned below said duct means for receiving said articles after they have been subjected to a crushing operation in said crushing chamber.
Claim 9
Dependent Claim
88 words
The apparatus as defined in claim 1, further including vibratory sieve means mounted in a slanting position within the lower end of said duct means, wherein said box means comprises two boxes placed side by side, one of said boxes being positioned immediately below said sieve means to receive said articles crushed to the extent permitting passage through said sieve means, and the other box being positioned substantially below the lower edge of said sieve means to receive uncrushable material carried into said crushing chamber with said articles.
Claim 10
Dependent Claim
25 words
The apparatus as defined in claim 1, wherein said dust settling means comprises a device for introducing a supply of water into said crushing chamber.
Claim 11
Dependent Claim
23 words
The apparatus as defined in claim 8, wherein said water supply device includes a nozzle provided at the top of said crushing chamber.
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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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |