US3750965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crushing machines for glass articles
Assignee: ROBINSON SACKS Ltd
•
Filing: 1971-06-28
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Granted: 1973-08-07
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Expires: 1991-06-28
Abstract
Abstract A machine for crushing elements such as glass bottles having a chute into which the bottles are fed to a rotor chamber for crushing. The crushed material is fed from the chamber by the action of the rotor along a substantially horizontal outlet spout extending tangentially from the chamber. The rotor has a threefold action consisting of (a) crushing action (b) creating a suction action in the chute and (c) feeding the crushed material from the chamber.
Inventors
- 👤 J Madden
- 👤 Jorgensen H Bye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:04
CPC Classifications
B; B02; B02C; B02C19/00; B02C19/0056; B02C19/0081; B02C19/0087; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/60
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
134 words
A crushing machine for articles of glass or the like comprising means defining a crushing chamber, and inlet chute through which articles can be fed into the crushing chamber communicating with the crushing chamber, said chute having an inlet end, a drivable rotor mounted within the chamber, a plurality of blades on the rotor, valve means in the chute preventing egress of crushed material from the inlet end of the chute, an outlet spout receiving material crushed in the crushing chamber, the outlet spout communicating with and extending outwardly from the crushing chamber, a spring-loaded support member carrying the crushing chamber, chute and spout, spring means for loading the support member against downward movement, and signal means effecting an audible or visual signal on downward movement of the support member to a predetermined extent.
Claim 2
Dependent Claim
134 words
A crushing machine for articles of glass or the like comprising means defining a crushing chamber, and inlet chute through which articles can be fed into the crushing chamber communicating with the crushing chamber, said chute having an inlet end, a drivable rotor mounted within the chamber, a plurality of blades on the rotor, valve means in the chute preventing egress of crushed material from the inlet end of the chute, an outlet spout receiving material crushed in the crushing chamber, the outlet spout communicating with and extending outwardly from the crushing chamber, a spring-loaded support member carrying the crushing chamber, chute and spout, spring means for loading the support member against downward movement, and signal means effecting an audible or visual signal on downward movement of the support member to a predetermined extent.
Claim 3
Dependent Claim
34 words
The crushing machine as claimed in claim 1 in which the valve means includes a pair of spring-loaded metal flaps, said flaps normally extending substantially across the full cross section of the inlet chute.
Claim 4
Dependent Claim
32 words
The crushing machine as claimed in claim 2 in which the valve means also includes a strip curtain of resilient material at an intermediate positIon along the length of the inlet chute.
Claim 5
Dependent Claim
27 words
The crushing machine as claimed in claim 3 in which the rotor includes a disc, with the blades being disposed radially on one face of the disc.
Claim 6
Dependent Claim
38 words
The crushing machine as claimed in claim 4 in which the internal periphery of the crushing chamber is polygonal thereby providing a series of angular faces against which the articles are crushed by the action of the blades.
Claim 7
Dependent Claim
50 words
The crushing machine as claimed in claim 1 in which the outlet from the chamber includes a horizontal receptacle receiving a hollow spout extending tangentially from the chamber, the spout having an opening in the underside thereof, and a deflector deflecting crushed material from the chamber downwardly through the opening.
Claim 8
Dependent Claim
41 words
The crushing machine as claimed in claim 6 in which the receptacle is a valve sack, a tubular inlet on the valve sack for location over the spout, and a resilient coil spring retaining the valve sack inlet around the spout.
Claim 9
Dependent Claim
29 words
The crushing machine as claimed in claim 1 including means for cutting off the drive to the rotor on downward movement of the support member to the predetermined extent.
Claim 10
Dependent Claim
56 words
The crushing machine as claimed in claim 1 in which the support member includes a fixed plate, a plate hingedly mounted at one end to the fixed plate, at least one spring between the fixed plate and the hinged plate, and a micro-switch between the fixed and hinged plates actuable when the spring loading is overcome.
References Cited (Backward Citations)
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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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |