US3128787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid spraying guns
Assignee: Individual
•
Filing: 1961-06-06
•
Granted: 1964-04-14
•
Expires: 1981-06-06
Abstract
No abstract record available.
Inventors
- 👤 Knight Howard Richard James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:31
CPC Classifications
B; B05; B05B; B05B12/00; B05B12/14; B05B12/1409; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86501; Y10T137/86863; Y10T137/87153; Y10T137/87571; Y10T137/87676; Y10T137/87684
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A SERVICE UNIT FOR A SPRAY GUN, SAID UNIT COMPRISING A HOUSING HAVING A PLURALITY OF LIQUID ENTRY PORTS AND A LIQUID OUTLET PASSAGE, A VALVE MEMBER LOCATED IN SAID HOUSING AND INCLUDING A PASSAGE SELECTIVELY CONNECTABLE BETWEEN SAID LIQUID OUTLET PASSAGE AND ANY ONE OF THE LIQUID ENTRY PORTS, SAID HOUSING INCLUDING AN ATOMIZING AIR ENTRY PORT COMMUNICATING WITH AN ATOMIZING AIR PASSAGE BY WHICH ATOMIZING AIR IS PASSED TO A GUN, A CONTROL AIR ENTRY PORT COMMUNICATING WITH A CONTROL AIR PASSAGE BY WHICH CONTROL AIR IS DELIVERED TO A GUN, AN AUXILIARY PASSAGE IN SAID HOUSING CONNECTING THE ATOMIZING AIR ENTRY PORT AND CONTROL AIR PASSAGE, AND A COCK OPERABLE TO OBTURATE THE AUXILIARY PASSAGE FROM THE ATOMIZING AIR ENTRY PORT AND TO CONNECT SAID PORT TO THE ATOMIZING AIR PASSAGE OR TO OPEN THE AUXILIARY PASSAGE TO THE ATOMIZING
Claim 2
Dependent Claim
143 words
A SERVICE UNIT FOR A SPRAY GUN, SAID UNIT COMPRISING A HOUSING HAVING A PLURALITY OF LIQUID ENTRY PORTS AND A LIQUID OUTLET PASSAGE, A VALVE MEMBER LOCATED IN SAID HOUSING AND INCLUDING A PASSAGE SELECTIVELY CONNECTABLE BETWEEN SAID LIQUID OUTLET PASSAGE AND ANY ONE OF THE LIQUID ENTRY PORTS, SAID HOUSING INCLUDING AN ATOMIZING AIR ENTRY PORT COMMUNICATING WITH AN ATOMIZING AIR PASSAGE BY WHICH ATOMIZING AIR IS PASSED TO A GUN, A CONTROL AIR ENTRY PORT COMMUNICATING WITH A CONTROL AIR PASSAGE BY WHICH CONTROL AIR IS DELIVERED TO A GUN, AN AUXILIARY PASSAGE IN SAID HOUSING CONNECTING THE ATOMIZING AIR ENTRY PORT AND CONTROL AIR PASSAGE, AND A COCK OPERABLE TO OBTURATE THE AUXILIARY PASSAGE FROM THE ATOMIZING AIR ENTRY PORT AND TO CONNECT SAID PORT TO THE ATOMIZING AIR PASSAGE OR TO OPEN THE AUXILIARY PASSAGE TO THE ATOMIZING
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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |