US3265324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tube systems
Assignee: International Standard Electric Corp
•
Filing: 1964-05-26
•
Granted: 1966-08-09
•
Expires: 1984-05-26
Abstract
No abstract record available.
Inventors
- 👤 Mach Horst
- 👤 Peter Hans-Joachim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:53
CPC Classifications
B; B65; B65G; B65G51/00; B65G51/04; B65G51/34; B65G51/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A REVERSIBLE PNEUMATIC TUBE SYSTEM COMPRISING: (A) A FORWARDING TUBE; (B) A FIRST REVERSIBLE BLOWER CONNECTED TO A FIRST END FOR SAID FORWARDING TUBE; (C) A SECOND REVERSIBLE BLOWER CONNECTED TO THE OPPOSITE END OF SAID FORWARDING TUBE, SAID FIRST AND SECOND REVERSIBLE BLOWERS PRODUCING AN AIR VELOCITY WHICH IS IN ITSELF INSUFFICIENT TO MOVE A CARRIER ALONG SAID FORWARDING TUBE; (D) A REVERSIBLE INTERMEDIATE BLOWER CONNECTED TO SAID FORWARDING TUBE BETWEEN THE RESPECTIVE CONNECTIONS OF SAID FIRST AND SECOND REVERSIBLE BLOWERS TO SAID FORWARDING TUBE; AND (E) CONTROL MEANS FOR CAUSING SAID REVERSIBLE INTERMEDIATE BLOWER TO COOPERATE WITH SAID FIRST AND SECOND REVERSIBLE BLOWERS TO PRODUCE AN AIR VELOCITY IN A FIRST PORTION OF SAID FORWARDING TUBE OF SUFFICIENT VELOCITY TO MOVE A CARRIER ALONG SAID FIRST PORTION OF SAID TUBE.
Claim 2
Dependent Claim
132 words
A REVERSIBLE PNEUMATIC TUBE SYSTEM COMPRISING: (A) A FORWARDING TUBE; (B) A FIRST REVERSIBLE BLOWER CONNECTED TO A FIRST END FOR SAID FORWARDING TUBE; (C) A SECOND REVERSIBLE BLOWER CONNECTED TO THE OPPOSITE END OF SAID FORWARDING TUBE, SAID FIRST AND SECOND REVERSIBLE BLOWERS PRODUCING AN AIR VELOCITY WHICH IS IN ITSELF INSUFFICIENT TO MOVE A CARRIER ALONG SAID FORWARDING TUBE; (D) A REVERSIBLE INTERMEDIATE BLOWER CONNECTED TO SAID FORWARDING TUBE BETWEEN THE RESPECTIVE CONNECTIONS OF SAID FIRST AND SECOND REVERSIBLE BLOWERS TO SAID FORWARDING TUBE; AND (E) CONTROL MEANS FOR CAUSING SAID REVERSIBLE INTERMEDIATE BLOWER TO COOPERATE WITH SAID FIRST AND SECOND REVERSIBLE BLOWERS TO PRODUCE AN AIR VELOCITY IN A FIRST PORTION OF SAID FORWARDING TUBE OF SUFFICIENT VELOCITY TO MOVE A CARRIER ALONG SAID FIRST PORTION OF SAID TUBE.
References Cited (Backward Citations)
US623509A
Cited
US2763446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |