US3602161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smokeless trash incinerator
Assignee: Grimes Aerospace Co
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Filing: 1967-12-19
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Granted: 1971-08-31
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Expires: 1987-12-19
Abstract
Abstract An incinerator for trash and other waste material having a lower trash-receiving chamber, an upper smoke-incinerating chamber in communication therewith, an air supply system for feeding air into selected regions of the chambers in accordance with certain preselected temperatures as measured in both chambers, and a burner in the upper chamber supplied by liquid or gaseous fuel.
Inventors
- 👤 David J Wyrough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:51
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/08; F23G5/14; F23G5/16; F23G5/165; F23G5/50
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
465 words
A smokeless trash incinerator comprising: a lower chamber with ends thereof spaced horizontally at opposite ends of its length, said chamber having a bottom interior portion for receiving material to be incinerated, and a front end wall having an opening; a top chamber disposed above said lower chamber with a front portion thereof immediately over a front portion of the lower chamber; a vertical flue extending between both of said front chamber portions wherethrough gas may pass from one chamber to the other; a stack attached to an upper rear wall portion of the top chamber in communication with the front portion of the top chamber; an air supply means disposed exteriorly of said chambers; air-discharging means disposed along the bottom of said lower chamber and extending through a wall portion of the lower chamber into connection with said air supply means and constructed for venting of air from the ducts upwardly into any material supported in said bottom portion; a charging door mounted on said front wall to uncover and close said opening; a fluid fuel burner mounted in a front end wall portion of the upper chamber to discharge flame toward the back end of the top chamber, and a fuel supply line thereto; an excess air duct having an outlet port in the upper portion of said lower chamber extending through a wall portion into connection with said air supply means; an air duct connecting said air supply means with said burner; burner control means including temperature-sensing means inside the incinerator, valve-means in said line, and igniting means for said burner; air control means including temperature-sensing means inside the incinerator, and valve means between the air supply means and said excess air duct and between the air supply means and said hearth ducts; said burner control means and air control means being constructed and arranged to actuate said valve means and igniting means: 1. to pass air continuously to said burner at all stages of operation; 2. during an initial stage, to pass fuel to, and ignite the burner; 3. during a second stage beginning as the top chamber reaches a preselected low temperature, to pass air through the excess air duct, and to continue passage of fuel to the burner; 4. during a third stage beginning as the top chamber reaches a preselected intermediate temperature, to shut off fuel to the burner, to continue passage of air to the excess air duct, and to turn on air to said air-discharging means; and 5. during a fourth stage beginning as the lower chamber reaches a preselected temperature between said intermediate temperature and a predetermined high temperature, to continue passage of air through the excess air duct, to shut off air to said airdischarging means, and to maintain shutoff condition of the burner.
Claim 2
Dependent Claim
465 words
A smokeless trash incinerator comprising: a lower chamber with ends thereof spaced horizontally at opposite ends of its length, said chamber having a bottom interior portion for receiving material to be incinerated, and a front end wall having an opening; a top chamber disposed above said lower chamber with a front portion thereof immediately over a front portion of the lower chamber; a vertical flue extending between both of said front chamber portions wherethrough gas may pass from one chamber to the other; a stack attached to an upper rear wall portion of the top chamber in communication with the front portion of the top chamber; an air supply means disposed exteriorly of said chambers; air-discharging means disposed along the bottom of said lower chamber and extending through a wall portion of the lower chamber into connection with said air supply means and constructed for venting of air from the ducts upwardly into any material supported in said bottom portion; a charging door mounted on said front wall to uncover and close said opening; a fluid fuel burner mounted in a front end wall portion of the upper chamber to discharge flame toward the back end of the top chamber, and a fuel supply line thereto; an excess air duct having an outlet port in the upper portion of said lower chamber extending through a wall portion into connection with said air supply means; an air duct connecting said air supply means with said burner; burner control means including temperature-sensing means inside the incinerator, valve-means in said line, and igniting means for said burner; air control means including temperature-sensing means inside the incinerator, and valve means between the air supply means and said excess air duct and between the air supply means and said hearth ducts; said burner control means and air control means being constructed and arranged to actuate said valve means and igniting means: 1. to pass air continuously to said burner at all stages of operation; 2. during an initial stage, to pass fuel to, and ignite the burner; 3. during a second stage beginning as the top chamber reaches a preselected low temperature, to pass air through the excess air duct, and to continue passage of fuel to the burner; 4. during a third stage beginning as the top chamber reaches a preselected intermediate temperature, to shut off fuel to the burner, to continue passage of air to the excess air duct, and to turn on air to said air-discharging means; and 5. during a fourth stage beginning as the lower chamber reaches a preselected temperature between said intermediate temperature and a predetermined high temperature, to continue passage of air through the excess air duct, to shut off air to said airdischarging means, and to maintain shutoff condition of the burner.
Claim 3
Dependent Claim
12 words
during an initial stage, to pass fuel to, and ignite the burner;
Claim 4
Dependent Claim
12 words
during an initial stage, to pass fuel to, and ignite the burner;
Claim 5
Dependent Claim
51 words
The incinerator of claim 1 comprising: a hollow air dispenser encircling said opening in fixed relation with the front wall and provided with apertures aligned for discharging air in a conical pattern inward of the lower chamber toward an apex point, said air dispenser being connected to said air supply means.
Claim 6
Dependent Claim
17 words
The incinerator of claim 2 comprising: continuously open means connecting the air supply means and the dispenser.
Claim 7
Dependent Claim
31 words
during a second stage beginning as the top chamber reaches a preselected low temperature, to pass air through the excess air duct, and to continue passage of fuel to the burner;
Claim 8
Dependent Claim
31 words
during a second stage beginning as the top chamber reaches a preselected low temperature, to pass air through the excess air duct, and to continue passage of fuel to the burner;
Claim 9
Dependent Claim
41 words
during a third stage beginning as the top chamber reaches a preselected intermediate temperature, to shut off fuel to the burner, to continue passage of air to the excess air duct, and to turn on air to said air-discharging means; and
Claim 10
Dependent Claim
41 words
during a third stage beginning as the top chamber reaches a preselected intermediate temperature, to shut off fuel to the burner, to continue passage of air to the excess air duct, and to turn on air to said air-discharging means; and
Claim 11
Dependent Claim
31 words
The incinerator of claim 1 wherein: said front wall is substantially constituted of a cleanout door having said opening and hinge means pivotally connecting said charging door with the cleanout door.
Claim 12
Dependent Claim
23 words
The incinerator of claim 1 wherein: said burner control means and air control means include thermocouples in the upper parts of both chambers.
Claim 13
Dependent Claim
48 words
during a fourth stage beginning as the lower chamber reaches a preselected temperature between said intermediate temperature and a predetermined high temperature, to continue passage of air through the excess air duct, to shut off air to said air-discharging means, and to maintain shutoff condition of the burner.
Claim 14
Dependent Claim
48 words
during a fourth stage beginning as the lower chamber reaches a preselected temperature between said intermediate temperature and a predetermined high temperature, to continue passage of air through the excess air duct, to shut off air to said air-discharging means, and to maintain shutoff condition of the burner.
Claim 15
Dependent Claim
81 words
The incinerator of claim 1 wherein: said lower chamber has a bottom wall portion constituting a hearth and said air-discharging means comprises a plurality of tranversely spaced ducts extending lengthwise of said hearth; said chambers and flue are lined with a refractory lining and all exterior surfaces of ducts within said chambers are embedded is said lining, said lining being open in an upward direction immediately over foraminous portions of said hearth ducts to enable said venting of air supplied thereto.
Claim 16
Dependent Claim
50 words
The incinerator of claim 4 wherein: said hinge means comprises double-fulcrum link means and said cleanout door having similar hinge means enabling said doors to adjustably seat against seating surfaces defining the respective openings closed by the doors, and adjustable clamp means for securing said doors against respective seating surfaces.
Claim 17
Dependent Claim
20 words
The incinerator of claim 4 wherein: the end walls of said chambers including said doors are of outwardly domed contour.
Claim 18
Dependent Claim
55 words
The incinerator of claim 4 wherein: said cleanout door constitutes said end wall to a level below said hearth whereby open ends of said hearth ducts are exposed when the cleanout door is opened, and said hearth ducts extend in substantially straight lines entirely throughout the length of the hearth to facilitate the cleaning thereof.
Claim 19
Dependent Claim
57 words
The incinerator of claim 1 wherein: said burner control means and said air control means are merged in a single electrical system including thermocouples exposed within the upper parts of both chambers, said system being arranged to respond to said preselected temperature as measured by the thermocouple of the lower chamber to effect said fourth stage operation.
Claim 20
Dependent Claim
43 words
The incinerator of claim 10 wherein: said system is arranged to respond to a predetermined shutdown temperature less than said intermediate temperature as measured by the thermocouple of the lower chamber to effect automatic cessation of power to all elements of said system.
Claim 21
Dependent Claim
29 words
The incinerator of claim 10 wherein: said system is arranged to respond to said low temperature and said intermediate temperature as measured by the thermocouple of the upper chambers.
Claim 22
Dependent Claim
126 words
A smokeless trash incinerator comprising: main incinerating chamber having an end wall defined by a cleanout door, which defines an opening; an annular air dispenser mounted on said door in encircling relation with said opening, said dispenser being foraminous along a surface thereof facing inwardly of the chamber and in a pattern adapted to form a generally conical stream of air converging inwardly of the chamber away from said opening; a charging door for closing said opening; and air supply means for the incinerator supplying air to the dispenser at sufficient pressure providing a conical air curtain or stream preventing the discharge of any gas or suspended material from said opening as the result of internal pressure of the chamber when said charging door is open.
Claim 23
Dependent Claim
126 words
A smokeless trash incinerator comprising: main incinerating chamber having an end wall defined by a cleanout door, which defines an opening; an annular air dispenser mounted on said door in encircling relation with said opening, said dispenser being foraminous along a surface thereof facing inwardly of the chamber and in a pattern adapted to form a generally conical stream of air converging inwardly of the chamber away from said opening; a charging door for closing said opening; and air supply means for the incinerator supplying air to the dispenser at sufficient pressure providing a conical air curtain or stream preventing the discharge of any gas or suspended material from said opening as the result of internal pressure of the chamber when said charging door is open.
Claim 24
Dependent Claim
55 words
The smokeless trash incinerator of claim 13 comprising: a second chamber in communication with said main chamber, said second chamber having a burner operable therein to incinerate gas and gas-suspended materials, said air curtain by said dispenser being of sufficient strength to overcome any pressure in said main chamber caused by operation of said burner.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |