§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US3921653A Expired / Lapsed US ⏱️ 0.0 years remaining

Washing and degreasing machine

Assignee: FABCO METAL PRODUCTS Inc
•
Filing: 1973-07-30
•
Granted: 1975-11-25
•
Expires: 1993-07-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A washing and degreasing machine which comprises essentially a pair of superposed tanks, the lower tank being a reservoir and having a low floor with a high point in the center. The upper tank comprises the washing and cleaning chamber and it contains a spout for leading the degreasing solution upwardly from the reservoir. The pump intake and filter are directly above the high point. There is a drain for the used cleaning solution, also directly above the high point of the floor, to guide flow into the lower tank where dirt and particles will gradually move downwardly from the central high point thereof to the lower level, peripheral, or outside edges where the same can be easily cleaned or removed. The upper tank has a lid with spring rod means to hold it in an overbalanced position and a fusible link so that the lid will automatically close and completely cover the cleaning chamber for the purpose of smothering possible fires.

Inventors

  • 👤 Paul H Ducharme

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 07:01
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/006

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 113 words
A cleaning and degreasing machine including a reservoir chamber and a superposed cleaning chamber with a bottom, the reservoir chamber having a sloping pyramidal floor with a central high point and lower level outside edges, means pumping the cleaning solution up from the reservoir chamber to the cleaning chamber, said means including a pump, filter and solution intake directly above the highest portion of the sloping floor of the reservoir chamber, and including a flexible tube in said cleaning chamber supplied with solution thereby, and a drain leading from the cleaning chamber to the reservoir chamber centrally located in the bottom of said chamber directly above the said high point of the floor.
Claim 2
Dependent Claim 113 words
A cleaning and degreasing machine including a reservoir chamber and a superposed cleaning chamber with a bottom, the reservoir chamber having a sloping pyramidal floor with a central high point and lower level outside edges, means pumping the cleaning solution up from the reservoir chamber to the cleaning chamber, said means including a pump, filter and solution intake directly above the highest portion of the sloping floor of the reservoir chamber, and including a flexible tube in said cleaning chamber supplied with solution thereby, and a drain leading from the cleaning chamber to the reservoir chamber centrally located in the bottom of said chamber directly above the said high point of the floor.
Claim 3
Dependent Claim 21 words
The machine of claim 1 including water in said reservoir up to the level of said highest point for receiving particles.
Claim 4
Dependent Claim 36 words
The machine of claim 1 including an aerator in the upper chamber connected by a flexible pipe to a source of air outside said machine and means for controlling the rate of flow through said drain.
Claim 5
Dependent Claim 96 words
The machine of claim 1 plus a lid for the said cleaning chamber, and spring rod means for holding said lid in normally inclined over-balanced condition, but permitting manual closure of said lid, failure of the holding means causing the lid to drop completely, shutting the cleaning chamber, a fusible link connecting said spring rod means to said lid whereby upon occurrence of flames in the cleaning chamber, the fusible link will fuse disrupting the connection of said spring rod means to said lid and allowing the lid to shut by gravity smothering any flames therein.
Claim 6
Dependent Claim 52 words
The machine of claim 1 including an upright, hollow truncated pyramid of sheet material located directly above the high point in said floor, the pumping means being located thereon above the floor, the solution intake being located within the hollow member at a predetermined level above the level of said high point.

References Cited (Backward Citations)

US1305735A Cited
US2135043A Cited
US2352356A Cited
US2440619A Cited
US2653617A Cited
US3378019A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-11-24 1979-05-26 1979-11-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-11-24 1983-05-26 1983-11-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-11-24 1987-05-26 1987-11-25 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag