US3834135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease filter
Assignee: Individual
•
Filing: 1973-10-02
•
Granted: 1974-09-10
•
Expires: 1993-10-02
Abstract
Abstract A grease filter unit comprises upper and lower baffle plate assemblies held in adjustable opposing spaced position by bolts carrying compressed springs. Each assembly includes a plurality of straight baffle plates held in fixed laterally or transversely spaced positions by flat end bars. Each plate has a pair of transversely curved laterally spaced flanges integral with a central bridge portion constituting a partition to define two spaced parallel channels. Bridge portions of one assembly are formed with longitudinal grooves while bridge portions of the other assembly are formed with apices, to define sinuous channels for collecting grease separated centrifugally from grease laden air passing through the unit. Ends of the grooves and channels are open to drain the grease from the baffle plates.
Inventors
- 👤 A Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:56
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/04; B01D45/08; Y; Y10; Y10S; Y10S55/00; Y10S55/36
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
214 words
A grease filter comprising: an upper and a lower baffle plate assembly, each baffle plate assemblies comprising: a plurality of longitudinally extending baffle plates, each of said baffle plates having a pair of transversely curved laterally spaced flanges integral with a central bridge portion constituting a partition to define two spaced parallel channels open at opposite ends; and flat parallel bars secured to opposite end portions of each of said baffle plates for holding said baffle plates in spaced parallel position with the convex sides of said flanges abutting the bars; and adjustable spacer means holding said baffle plate assemblies in spaced opposing position with lateral edges of said baffle plates of one assembly aligned centrally of said channels in the other assembly, and with said bridge sections of each assembly centered between lateral edges of said spaced baffle plates in the other assembly, to define sinuous paths therebetween for grease laden air, so that grease collected in said channels of said upper baffle plate assembly drains into said channels of said lower baffle plate assembly and then drains out of the lower ends of the last named channels when said baffle plates are disposed in vertically inclined positions with ends of said baffle plates at the bottom ends of said baffle plate assemblies.
Claim 2
Dependent Claim
214 words
A grease filter comprising: an upper and a lower baffle plate assembly, each baffle plate assemblies comprising: a plurality of longitudinally extending baffle plates, each of said baffle plates having a pair of transversely curved laterally spaced flanges integral with a central bridge portion constituting a partition to define two spaced parallel channels open at opposite ends; and flat parallel bars secured to opposite end portions of each of said baffle plates for holding said baffle plates in spaced parallel position with the convex sides of said flanges abutting the bars; and adjustable spacer means holding said baffle plate assemblies in spaced opposing position with lateral edges of said baffle plates of one assembly aligned centrally of said channels in the other assembly, and with said bridge sections of each assembly centered between lateral edges of said spaced baffle plates in the other assembly, to define sinuous paths therebetween for grease laden air, so that grease collected in said channels of said upper baffle plate assembly drains into said channels of said lower baffle plate assembly and then drains out of the lower ends of the last named channels when said baffle plates are disposed in vertically inclined positions with ends of said baffle plates at the bottom ends of said baffle plate assemblies.
Claim 3
Dependent Claim
49 words
A grease filter unit as defined in claim 1, wherein said bridge portions of said baffle plates in said lower assembly are formed with grooves extending the full length of said baffle plates to receive liquid thrown centrifugally from said channels of said baffle plates in said upper assembly.
Claim 4
Dependent Claim
49 words
A grease filter unit as defined in claim 2, wherein said bridge portions of said baffle plates in said upper assembly are formed with depending apices to guide liquid from said channels of said upper baffle plate assembly to said channels and grooves of said lower baffle plate assembly.
Claim 5
Dependent Claim
58 words
A grease filter unit as defined in claim 3, wherein said baffle plates are made of a lightweight metal, so that the assemblies are fireproof and easy to handle with all surfaces of said metal being exposed to the grease laden air so that the vaPorized grease condenses on said surfaces and runs into said channels and grooves.
Claim 6
Dependent Claim
39 words
A grease filter unit as defined in claim 3, wherein each of said baffle plate assemblies constitutes a structure with fixed parts having smooth exposed surfaces to facilitate flow of grease along said channels and to facilitate washing thereof.
Claim 7
Dependent Claim
39 words
A grease filter unit as defined in claim 1, wherein each of said baffle plate assemblies constitutes a structure with fixed parts having smooth exposed surfaces to facilitate flow of grease along said channels and to facilitate washing thereof.
Claim 8
Dependent Claim
58 words
A grease filter unit as defined in claim 6, wherein the said baffle plates are made of a lightweight metal, so that the assemblies are fireproof, and easy to handle, all surfaces of said metal being exposed to the grease laden air so that the vaporized grease condenses on said surfaces and runs into said channels and grooves.
Claim 9
Dependent Claim
41 words
A grease filter unit as defined in claim 1 wherein said adjustable spacer means comprises threaded bolts engaging the bars of both of said baffle plate assemblies, and coil springs on said bolts holding said assemblies in said spaced opposing position.
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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |