US3228113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating apparatus and method
Assignee: JOHN J FANNON PRODUCTS CO
•
Filing: 1960-08-18
•
Granted: 1966-01-11
•
Expires: 1980-08-18
Abstract
No abstract record available.
Inventors
- 👤 Jr John J Fannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:20
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/28; F26B3/30; F26B3/305; F26B3/283
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
A METHOD OF HEAT TREATING A WORK PIECE, COMPRISING THE STEPS OF: (A) ESTABLISHING FROM A SOURCE A BEAM IN INFRARED RADIATION; (B) MOVING A WORK PIECE THROUGH SAID BEAM TO HEAT SAID WORK PIECE; AND (C) EFFECTING A FLOW OF AIR AT HIGH VELOCITY BETWEEN BUT SUBSTANTIALLY OUT OF CONTACT WITH SAID SOURCE AND SAID WORK PIECE TO ESTABLISH AN INFRARED RADIATION TRANSPARENT SHIELD BETWEEN THE SOURCE OF THE INFRARED RADIATION AND THE PATH OF WORK PIECE MOVEMENT AND TO REMOVE VOLATILIZED SUBSTANCES FROM BETWEEN SAID SOURCE AND SAID WORK PIECE WITHOUT COOLING SAID SOURCE OF SAID WORK PIECE AND WITHOUT PENETRATION OF SAID VOLATILIZED SUBSTANCED TO THE VICINITY OF SAID SOURCE BY: (1) EFFECTING A FLOW OF AIR WHICH IS AT A TEMPERATURE SUBSTANTIALLY LOWER THAN THE TEMPERATURE OF THE RADIANT ENERGY SOURCE BETWEEN SAID SOURCE AND SAID WORK PIECE AND GENERALLY PARALLEL TO SAID WORK PIECE FROM A PERIPHERAL PORTION OF SAID BEAM; AND (2) EXHAUSTING SAID AIR AND EVOLVED SUBSTANCES FROM BETWEEN SAID SOURCE AND SAID WORK PIECE AT AN OPPOSITE PERIPHERAL PORTION OF SAID BEAM AT A GREATER RATE THAN SAID AIR IS SUPPLIED TO MAINTAIN SAID FLOW AT A HIGH VELOCITY AND IN A STREAM WHICH IS OUT OF SUBSTANTIAL CONTACT WITH SAID SOURCE AND SAID WORK PIECE.
Claim 2
Independent Claim
214 words
A METHOD OF HEAT TREATING A WORK PIECE, COMPRISING THE STEPS OF: (A) ESTABLISHING FROM A SOURCE A BEAM IN INFRARED RADIATION; (B) MOVING A WORK PIECE THROUGH SAID BEAM TO HEAT SAID WORK PIECE; AND (C) EFFECTING A FLOW OF AIR AT HIGH VELOCITY BETWEEN BUT SUBSTANTIALLY OUT OF CONTACT WITH SAID SOURCE AND SAID WORK PIECE TO ESTABLISH AN INFRARED RADIATION TRANSPARENT SHIELD BETWEEN THE SOURCE OF THE INFRARED RADIATION AND THE PATH OF WORK PIECE MOVEMENT AND TO REMOVE VOLATILIZED SUBSTANCES FROM BETWEEN SAID SOURCE AND SAID WORK PIECE WITHOUT COOLING SAID SOURCE OF SAID WORK PIECE AND WITHOUT PENETRATION OF SAID VOLATILIZED SUBSTANCED TO THE VICINITY OF SAID SOURCE BY: (1) EFFECTING A FLOW OF AIR WHICH IS AT A TEMPERATURE SUBSTANTIALLY LOWER THAN THE TEMPERATURE OF THE RADIANT ENERGY SOURCE BETWEEN SAID SOURCE AND SAID WORK PIECE AND GENERALLY PARALLEL TO SAID WORK PIECE FROM A PERIPHERAL PORTION OF SAID BEAM; AND (2) EXHAUSTING SAID AIR AND EVOLVED SUBSTANCES FROM BETWEEN SAID SOURCE AND SAID WORK PIECE AT AN OPPOSITE PERIPHERAL PORTION OF SAID BEAM AT A GREATER RATE THAN SAID AIR IS SUPPLIED TO MAINTAIN SAID FLOW AT A HIGH VELOCITY AND IN A STREAM WHICH IS OUT OF SUBSTANTIAL CONTACT WITH SAID SOURCE AND SAID WORK PIECE.
References Cited (Backward Citations)
US1513161A
Cited
US1677156A
Cited
US2022593A
Cited
US2012115A
Cited
US2101335A
Cited
US2194208A
Cited
US2220928A
Cited
US2204802A
Cited
US2236754A
Cited
US2266392A
Cited
US2308239A
Cited
US2405191A
Cited
US2428090A
Cited
US2559713A
Cited
US2518740A
Cited
US2545450A
Cited
US2817506A
Cited
US2851786A
Cited
US2889806A
Cited
US3062520A
Cited
US2908590A
Cited
US2950098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |