US3224745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas absorption
Assignee: Individual
•
Filing: 1961-08-03
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Granted: 1965-12-21
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Expires: 1981-08-03
Abstract
No abstract record available.
Inventors
- 👤 William E Hotchkiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:12
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; B01D53/18; Y; Y10; Y10S; Y10S261/00; Y10S261/07
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
284 words
FOR USE IN A GAS-LIQUID CONTACT APPARATUS OF THE RECIPROCATING PISTON TYPE, A PISTON AND PISTON ROD CONSTRUCTION COMPRISING, A PISTON HAVING SPACES ON THE OPPOSITE SIDES THEREOF AND HAVING AN OPENING THERETHROUGH, A PISTON ROD EXTENDING FROM ONE SIDE OF AND AUXILIARY MOVABLE RELATIVE TO SAID POSITION, SAID PISTON ROD HAVING AN END ADJACENT THE PISTON AND AN END REMOTE FROM THE PISTON, MEANS CONNECTING SAID ADJACENT END OF THE PISTON ROD TO THE PISTON INCLUDING MEANS OPERATIVE TO LIMIT AXIAL MOVEMENT OF THE PISTON ROD FROM THE PISTON, SAID PISTON ROD BEING HOLLOW WITH THE REMOTE END THEREOF BEING CLOSED AND THE ADJACENT END THEREOF BEING OPEN AND COMMUNICATING WITH THE OPENING THROUGH THE PISTON, SAID CONNECTING MEANS INCLUDING SPRING MEANS BIASING AXIAL MOVEMENT OF THE PISTON ROD TOWARD THE PISTON AND ENGAGEADJACENT WITH THE PISTON AT A VALVING PISTON SURROUNDING MENT WITH THE PISTON AT A VALVING POSITION SURROUNDING THE OPENING THROUGH THE PISTON, WHEREBY ALL EXTERNAL COMMUNICATION WITH THE HOLLOW INTERIOR OF THE PISTON ROD EXCEPT THROUGH THE OPENING THROUGH THE PISTON IS CLOSED WHEN THE PISTON ROD IS IN SAID VALVING ENGAGEMENT WITH THE PISTON, AND VALVE CONTROLLED MEANS FOR INTRODUCING A GAS INTO THE HOLLOW PISTON ROD FROM THE EXTERIOR THEREOF AT A POSITION ADJACENT THE REMOTE END OF THE PISTON ROD, WHEREBY A GAS CAN BE PASSED THROUGH THE HOLLOW PISTON ROD AND THE OPENING THROUGH THE PISTON TO THE SPACE ON THE SIDE OF THE PISTON OPPOSITE THE PISTON ROD, AND WHEREBY COMMUNICATION BETWEEN THE SPACES ON OPPOSITE SIDES OF THE PISTON THROUGH THE OPENING THROUGH THE PISTON IS OBTAINED UPON AND SOLELY UPON THE PISTON ROD BEING UNSEATED FROM SAID VALVING ENGAGEMENT WITH THE PISTON.
Claim 2
Dependent Claim
284 words
FOR USE IN A GAS-LIQUID CONTACT APPARATUS OF THE RECIPROCATING PISTON TYPE, A PISTON AND PISTON ROD CONSTRUCTION COMPRISING, A PISTON HAVING SPACES ON THE OPPOSITE SIDES THEREOF AND HAVING AN OPENING THERETHROUGH, A PISTON ROD EXTENDING FROM ONE SIDE OF AND AUXILIARY MOVABLE RELATIVE TO SAID POSITION, SAID PISTON ROD HAVING AN END ADJACENT THE PISTON AND AN END REMOTE FROM THE PISTON, MEANS CONNECTING SAID ADJACENT END OF THE PISTON ROD TO THE PISTON INCLUDING MEANS OPERATIVE TO LIMIT AXIAL MOVEMENT OF THE PISTON ROD FROM THE PISTON, SAID PISTON ROD BEING HOLLOW WITH THE REMOTE END THEREOF BEING CLOSED AND THE ADJACENT END THEREOF BEING OPEN AND COMMUNICATING WITH THE OPENING THROUGH THE PISTON, SAID CONNECTING MEANS INCLUDING SPRING MEANS BIASING AXIAL MOVEMENT OF THE PISTON ROD TOWARD THE PISTON AND ENGAGEADJACENT WITH THE PISTON AT A VALVING PISTON SURROUNDING MENT WITH THE PISTON AT A VALVING POSITION SURROUNDING THE OPENING THROUGH THE PISTON, WHEREBY ALL EXTERNAL COMMUNICATION WITH THE HOLLOW INTERIOR OF THE PISTON ROD EXCEPT THROUGH THE OPENING THROUGH THE PISTON IS CLOSED WHEN THE PISTON ROD IS IN SAID VALVING ENGAGEMENT WITH THE PISTON, AND VALVE CONTROLLED MEANS FOR INTRODUCING A GAS INTO THE HOLLOW PISTON ROD FROM THE EXTERIOR THEREOF AT A POSITION ADJACENT THE REMOTE END OF THE PISTON ROD, WHEREBY A GAS CAN BE PASSED THROUGH THE HOLLOW PISTON ROD AND THE OPENING THROUGH THE PISTON TO THE SPACE ON THE SIDE OF THE PISTON OPPOSITE THE PISTON ROD, AND WHEREBY COMMUNICATION BETWEEN THE SPACES ON OPPOSITE SIDES OF THE PISTON THROUGH THE OPENING THROUGH THE PISTON IS OBTAINED UPON AND SOLELY UPON THE PISTON ROD BEING UNSEATED FROM SAID VALVING ENGAGEMENT WITH THE PISTON.
Claim 3
Dependent Claim
210 words
THE GAS-LIQUID CONTACTING APPARATUS OF THE RECIPROCATING PISTON TYPE, A CLOSED CYLINDER, A PISTON SLIDINGLY AND SEALINGLY RECEIVED IN THE CYLINDER AND SEPARATING THE INTERIOR OF THE CYLINDER INTO FIRST AND SECOND CHAMBERS OF VARIABLE VOLUMES AT OPPOSITE ENDS OF THE CYLINDER, A FIRST VALVE CONTROLLED MEANS FOR CONDUCTING A LIQUID INTO SAID FIRST CHAMBER FROM A LIQUID SUPPLY, SAID PISTON HAVING FIRST PASSAGEWAY THERETHROUGH AFFORDING FLUID COMMUNICATION BETWEEN SAID CHAMBERS, NORMALLY CLOSED VALVE MEANS IN SAID FIRST PASSAGEWAY AND SPACED FROM SAID SECOND CHAMBER FOR CONTROLLING COMMUNICATION THERETHROUGH BETWEEN SAID CHAMBERS, PRESSURE RESPONSIVE ACTUATING MEANS FOR OPERATING SAID NORMALLY CLOSED VALVE MEANS, A SECOND VALVE CONTROLLED MEANS FOR INTRODUCING A GAS INTO SAID FIRST PASSAGEWAY AT A POSITION INTERMEDIATE SAID NORMALLY CLOSED VALVE MEANS AND SAID SECOND CHAMBER, AND A THIRD VALVE CONTROLLED CLOSED VALVE MEANS INCLUDING A PISTON BER, SAID NORMALLY CLOSED VALVE MEANS INCLUDING A PISTON ROD CARRIED BY THE PISTON THAT EXTENDS THROUGH SAID FIRST CHAMBER END OF THE CYLINDER, SAID SECOND VALVE CONTROLLED MEANS INCLUDING A SECOND PASSAGEWAY IN THE PISTON ROD BY-PASSING THE NORMALLY CLOSED VALVE MEANS AND INTERSECTING SAID FIRST PASSAGEWAY INTERMEDIATE THE NORMALLY CLOSED VALVE MEANS AND THE SECOND CHAMBER, WHEREBY INITIAL GAS AND LIQUID CONTACT WILL OCCUR IN SAID FIRST PASSAGEWAY.
Claim 4
Dependent Claim
210 words
THE GAS-LIQUID CONTACTING APPARATUS OF THE RECIPROCATING PISTON TYPE, A CLOSED CYLINDER, A PISTON SLIDINGLY AND SEALINGLY RECEIVED IN THE CYLINDER AND SEPARATING THE INTERIOR OF THE CYLINDER INTO FIRST AND SECOND CHAMBERS OF VARIABLE VOLUMES AT OPPOSITE ENDS OF THE CYLINDER, A FIRST VALVE CONTROLLED MEANS FOR CONDUCTING A LIQUID INTO SAID FIRST CHAMBER FROM A LIQUID SUPPLY, SAID PISTON HAVING FIRST PASSAGEWAY THERETHROUGH AFFORDING FLUID COMMUNICATION BETWEEN SAID CHAMBERS, NORMALLY CLOSED VALVE MEANS IN SAID FIRST PASSAGEWAY AND SPACED FROM SAID SECOND CHAMBER FOR CONTROLLING COMMUNICATION THERETHROUGH BETWEEN SAID CHAMBERS, PRESSURE RESPONSIVE ACTUATING MEANS FOR OPERATING SAID NORMALLY CLOSED VALVE MEANS, A SECOND VALVE CONTROLLED MEANS FOR INTRODUCING A GAS INTO SAID FIRST PASSAGEWAY AT A POSITION INTERMEDIATE SAID NORMALLY CLOSED VALVE MEANS AND SAID SECOND CHAMBER, AND A THIRD VALVE CONTROLLED CLOSED VALVE MEANS INCLUDING A PISTON BER, SAID NORMALLY CLOSED VALVE MEANS INCLUDING A PISTON ROD CARRIED BY THE PISTON THAT EXTENDS THROUGH SAID FIRST CHAMBER END OF THE CYLINDER, SAID SECOND VALVE CONTROLLED MEANS INCLUDING A SECOND PASSAGEWAY IN THE PISTON ROD BY-PASSING THE NORMALLY CLOSED VALVE MEANS AND INTERSECTING SAID FIRST PASSAGEWAY INTERMEDIATE THE NORMALLY CLOSED VALVE MEANS AND THE SECOND CHAMBER, WHEREBY INITIAL GAS AND LIQUID CONTACT WILL OCCUR IN SAID FIRST PASSAGEWAY.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |