Two-stage oil bypass filter device

• US 5,843,284 A
• Filed: 05/02/1997
• Issued: 12/01/1998
• Est. Priority Date: 05/02/1997
• Status: Expired due to Fees

• Current Assignee: Paul J.T. Waters
• Original Assignee: Paul J.T. Waters
• Inventors: Hahn, Scott A., Waters, Paul J. T.
• Primary Examiner(s): BHAT, NINA NMN
• Application Number:
  US08/848,977
• Time in Patent Office: 578 Days
• Field of Search: 196/46.1, 196/115, 196/121, 196/128, 196/126, 210/149, 210/180, 210/181, 210/183, 210/249
• US Class Current: 196/46.1
• CPC Class Codes: B01D 27/02 with cartridges made from a mass of loose granular or fibrous material
• CPC Class Codes: B01D 35/157 Flow control valves: Damping or calibrated passages
• CPC Class Codes: B01D 35/185 comprising a vaporizing unit
• CPC Class Codes: B01D 36/001 Filters in combination with devices for the removal of gas, air purge systems
• CPC Class Codes: C10G 31/09 by filtration
• CPC Class Codes: F01M 2013/0438 with a filter

Abstract

A new and improved two-stage oil bypass filter device is provided to enable effective and efficient removal of both solid particulate and volatile oil contaminants while also allowing the addition and mixing of certain oil additives as required by specific internal combustion engine or industrial applications. The novel two-stage oil bypass filter device includes a cone-shaped vaporization plate having a heating element located below the surfaces to be heated to provide for more effective and efficient heating of those surfaces critical to removing volatile contaminants, a horseshoe-shaped oil staging channel to provide preheating of the oil, a post-filter flow reducer to greatly reduce the possibility of clogging, a readily replaceable spin-on filter cartridge having a centrally located oil feed tube and an oil diffuser plate which directs the oil to be filtered to all parts of the filter media within the cartridge, an additives package configuration within the filter cartridge for continuous addition and mixing of oil additive substances to the oil being filtered, and a high grade, high impact thermoplastic cap housing to prevent external heating and considerably reduce the potential for burn accidents.

Claims

1. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil, comprising:

a head assembly for removing volatile liquid oil contaminants including oil inlet means, a singular uniformly smooth surfaced inverted cone-shaped volatile contaminants vaporization means having a horseshoe-shaped oil preheating staging channel means, an oil feed passageway means, heating means located below said vaporization means, oil outlet means, a base plate means having a post-filter flow reducing means, and a non-heat conducting thermoplastic housing means covering said head assembly; and

a replaceable filter cartridge means removably connected to said base plate means including an oil feed tube means, an oil diffuser plate means, an oil additives permeable container means located below said oil diffuser plate means for adding additives to the flowing oil and oil filter medium means for removing solid oil contaminants from the flowing oil.

2. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 1, wherein said cone-shaped vaporization means is removably connected to said base plate means by securing means.

3. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 2, wherein said securing means includes threaded bolts affixed to complimentary keps nuts.

4. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 1, wherein said base plate means includes a male threaded portion complementary to a female threaded portion of said replaceable filter cartridge for allowing spin-off removal and spin-on replacement of said filter cartridge.

5. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 1, wherein said non-heat conducting housing means is removably connected to said cone-shaped vaporization means and said base plate means via securing means.

6. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 5, wherein said securing means includes threaded bolts affixed to complimentary dome nuts.

7. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 1, wherein said base plate means includes a post-filter flow reducing means removably threaded into a threaded aperture within said base plate means.

8. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 1, wherein said non-heat conducting housing means is constructed of high grade high impact thermoplastic material.

9. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 1, wherein said cone-shaped vaporization means includes an integral horseshoe-shaped oil staging channel formed within a lower portion of said cone-shaped vaporization means, for preheating oil entering said cone-shaped vaporization means through said flow reducing means within said base plate means.

10. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 9, wherein said cone-shaped vaporization means includes an integral oil passageway allowing the flow of oil from said oil staging channel to a top portion of said cone-shaped vaporization means.

11. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 10, wherein said cone-shaped vaporization means includes a slotted oil reservoir integrally formed into said top portion of said cone-shaped vaporization means for allowing a uniform thin film of oil to form on the top surface of said cone-shaped vaporization means.

12. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 1, wherein said cone-shaped vaporization means includes heating means centrally disposed below said cone-shaped vaporization means, in direct contact with said cone-shaped vaporization means, to provide heat to said cone-shaped vaporization means.

13. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 12, wherein said heating means includes an electrically powered heating element.

14. A two-stage oil bypass filter device for removing solid particulate and volatile liquid contaminants from oil according to claim 1, wherein said base plate mean includes mounting brackets affixed to said base plate means for securing said two-stage oil bypass filter device in close proximity to a supply of oil to be decontaminated by said device.

15. A replaceable filter cartridge assembly for use in a two-stage oil bypass filter device, comprising:

a threaded portion for removably connecting said filter cartridge assembly to a base plate threaded portion of a two-stage oil bypass filter device;

filter medium means not impregnated with oil additives;

a centrally disposed oil feed tube means for directing the flow of oil downwardly to a lower portion of said filter cartridge;

an oil diffuser plate means located in said lower portion of said filter cartridge, integrally connected to said oil feed tube for uniformly directing the flow of oil into said filter medium means; and

an oil additives permeable container means containing solid oil additives substances located in said lower portion of said filter cartridge, secured below said oil diffuser plate means, for continuous admixing of oil additive substances contained within said permeable container means with oil flowing from said oil feed tube means through said oil diffuser plate means and into said filter medium means.

16. A replaceable filter cartridge assembly for use in a two-stage oil bypass filter device according to claim 15, wherein said filter medium means are composed of materials selected from the group consisting of compressed long-strand unbleached cotton fibers, king-strand unbleached cotton fibers, spun cotton fibers and pleated filter media materials.

17. A replaceable filter cartridge assembly for use in a two-stage oil bypass filter device according to claim 15, wherein said oil diffuser plate means includes a plate containing a plurality of circular apertures.

18. A replaceable filter cartridge assembly for use in a two-stage oil bypass filter device according to claim 15, wherein said oil additives package means includes a sack container means for containing oil additive substances prior to and during mixing with flowing oil.

19. A replaceable filter cartridge assembly for use in a two-stage oil bypass filter device according to claim 18, wherein said sack container means includes a closed sack composed of natural fabric or synthetic fabric.

20. A replaceable filter cartridge assembly for use in a two-stage oil bypass filter device according to claim 15, wherein said oil additives package means includes oil additives substances selected from the group consisting of silicone polymers, organic copolymers, zinc dithiophosphates, hindered phenols, aromatic amines, sulfurized phenols, and organic complexes containing nitrogen or sulphur amines, sulfides and phosphites.