Patent US3081996A successfully refreshed from Google Patents.
US3081996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Towel stacking system
Assignee: Hydraxtor Co
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Filing: 1960-05-25
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Granted: 1963-03-19
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Expires: 1980-05-25
Abstract
No abstract record available.
Inventors
- 👤 Hajos Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:12
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/26; B65H29/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
APPARATUS FOR AUTOMATICALLY STACKING AND REMOVING SUBSTANTIALLY FLAT SHEETS OF FABRIC AND FABRIC-LIKE MATERIAL COMPRISING: FIRST MEANS FOR CONVEYING SHEETS OF SAID MATERIAL; SECOND INTERMEDIATE PERVIOUS CONVEYING MEANS ADAPTED TO RECEIVE AND TO CARRY SAID SHEETS; MEANS FOR APPLYING VACUUM FORCES THROUGH SAID SECOND CONVEYING MEANS TO HOLD EACH OF SAID SHEETS TO THE UNDERSIDE OF SAID SECOND CONVEYING MEANS AGAINST GRAVITATIONAL FORCES; THIRD CONVEYING MEANS ADAPTED TO RECEIVE AND TO TRANSFER SAID SHEETS TO A REMOVAL STATION; ELECTRICAL MEANS INCLUDING AN ELECTRICALLY ACTUATABLE DEVICE FOR INTERRUPTING THE APPLICATION OF SAID VACUUM FORCES TO THEREBY PERMIT GRAVITATIONAL FORCES TO ACT ON EACH OF SAID SHEETS TO DEPOSIT SAID SHEETS ON SAID THIRD CONVEYING MEANS AND MEANS FOR APPLYING PRESSURE AGAINST EACH OF SAID SHEETS TO ASSIST THE GRAVITATIONAL FORCES IN DEPOSITING SAID SHEET ON SAID THIRD CONVEYING MEANS.
Claim 2
Dependent Claim
138 words
APPARATUS FOR AUTOMATICALLY STACKING AND REMOVING SUBSTANTIALLY FLAT SHEETS OF FABRIC AND FABRIC-LIKE MATERIAL COMPRISING: FIRST MEANS FOR CONVEYING SHEETS OF SAID MATERIAL; SECOND INTERMEDIATE PERVIOUS CONVEYING MEANS ADAPTED TO RECEIVE AND TO CARRY SAID SHEETS; MEANS FOR APPLYING VACUUM FORCES THROUGH SAID SECOND CONVEYING MEANS TO HOLD EACH OF SAID SHEETS TO THE UNDERSIDE OF SAID SECOND CONVEYING MEANS AGAINST GRAVITATIONAL FORCES; THIRD CONVEYING MEANS ADAPTED TO RECEIVE AND TO TRANSFER SAID SHEETS TO A REMOVAL STATION; ELECTRICAL MEANS INCLUDING AN ELECTRICALLY ACTUATABLE DEVICE FOR INTERRUPTING THE APPLICATION OF SAID VACUUM FORCES TO THEREBY PERMIT GRAVITATIONAL FORCES TO ACT ON EACH OF SAID SHEETS TO DEPOSIT SAID SHEETS ON SAID THIRD CONVEYING MEANS AND MEANS FOR APPLYING PRESSURE AGAINST EACH OF SAID SHEETS TO ASSIST THE GRAVITATIONAL FORCES IN DEPOSITING SAID SHEET ON SAID THIRD CONVEYING MEANS.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |