Air screen cleaning system for agricultural vehicle

Jeffrey Thomas, Gordonville, PA (US); Matthew Gyenes, Gordonville, PA (US)

USPTO: us-12642176 · published 2026-06-02 · patents · A01D 41/1276· A01D 75/00· F01P 11/12

Air screen cleaning system for agricultural vehicle

Jeffrey Thomas, Gordonville, PA (US) , Matthew Gyenes, Gordonville, PA (US) This is my paper

Pith reviewed 2026-06-03 10:01 UTC · model grok-4.3

classification patents A01D 41/1276A01D 75/00F01P 11/12

keywords agricultural vehicleperforated screenair cleaning systemaspiration systemfluid coolervacuum and pressure wanddebris removal

0 comments

The pith

A wand with separate vacuum and pressurized-air channels cleans a perforated screen protecting an agricultural vehicle's cooler while the fan keeps running.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The patent describes an aspiration system that keeps debris off the perforated screen placed in front of an air-cooled fluid cooler on a farm vehicle. A moving wand carries two parallel passageways: one draws vacuum to pull material away and the other supplies positive pressure through a trailing nozzle that blasts air through the screen. The cleaning action occurs while the cooling fan continues to pull air across the cooler. The geometry is arranged so the wand travels across one face of the screen and the combined suction-plus-blast action is intended to dislodge and remove particles without stopping the vehicle or the fan.

Core claim

The aspiration system comprises a perforated screen adjacent to an air-cooled fluid cooler, a cooling fan that draws air across the cooler, and an air-delivery wand that travels across the screen; the wand contains a first passageway connected to a vacuum pump and a second passageway connected to a positive-pressure pump whose nozzle is located on the trailing side of the wand so that pressure air is directed through the screen immediately after vacuum has acted on the same area.

What carries the argument

Dual-passageway wand with vacuum line and trailing positive-pressure nozzle that travels across the perforated screen while the cooling fan operates.

If this is right

The screen can remain in place and functional during continuous field operation without manual cleaning stops.
Both suction and blowing occur in one pass, so the same mechanical drive that moves the wand serves two cleaning modes.
Because the pressure nozzle trails the vacuum port, loosened particles are immediately captured rather than redeposited on the screen.
The system can be added to existing coolers without redesigning the fan or radiator package.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

If the wand speed and nozzle angle are tuned correctly, the same hardware could be adapted to stationary radiators on construction equipment or generators.
A failure mode would appear if the vacuum line clogs first; the patent does not discuss a self-cleaning feature for the vacuum port itself.
Integration with automatic sensors that detect rising coolant temperature could trigger the wand only when needed, reducing wear on the drive mechanism.

Load-bearing premise

The wand's simultaneous vacuum-plus-pressure action and its position relative to the moving air stream will reliably remove debris without creating new blockages or starving the cooling fan.

What would settle it

Measure screen airflow and debris accumulation on a vehicle operating in dusty conditions; if the screen still clogs or fan performance drops after repeated wand passes, the geometry does not work as claimed.

read the original abstract

1 . An aspiration system of an agricultural vehicle, the aspiration system comprising: a perforated screen that is configured to be positioned adjacent to an air-cooled fluid cooler; an air delivery device positioned on one side surface of the perforated screen, the air delivery device including a series of openings facing the perforated screen that directs air through the perforated screen to dislodge debris on the perforated screen; and a cooling fan that causes air to flow across the fluid cooler; wherein the air delivery device comprises a wand having a first passageway fluidly connected to a vacuum pump and a second passageway fluidly connected to a positive pressure pump; and wherein the second passageway comprises a nozzle positioned on a trailing portion of the wand as viewed in a direction of movement of the wand.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Desk Editor's Note private letter to a colleague

A standard mechanical patent claim for a dual-passage air wand on an ag-vehicle screen cleaner; nothing here is research or data.

read the letter

This is a US patent filing that claims a perforated screen cleaner using a wand with one vacuum passage and one positive-pressure passage ending in a trailing nozzle, all while a cooling fan runs. The geometry is spelled out in claim language so a fabricator could build it from the description alone. That is the only concrete content. No performance numbers, no airflow measurements, no comparison to existing screen cleaners, and no prior-art search appear in the text. The design may or may not work in practice; the document simply asserts the arrangement. Because it is a legal instrument rather than an empirical or theoretical paper, the usual questions of soundness, novelty, or circularity do not apply in the scientific sense. The claim is internally consistent as a mechanical description, but that is all it is. Anyone working on combine or tractor cooling systems might want to read the claim language for prior-art or licensing reasons. It has no value for a research reading group, will not be cited in technical papers, and should not go to academic peer review. Desk-reject it if it arrives at a journal.

Referee Report

0 major / 1 minor

Summary. The manuscript is a US patent that claims an aspiration system for an agricultural vehicle. The system comprises a perforated screen positioned adjacent to an air-cooled fluid cooler, an air delivery device (a wand) with a first passageway connected to a vacuum pump and a second passageway connected to a positive-pressure pump terminating in a trailing nozzle, and a cooling fan. The wand moves across the screen, using simultaneous vacuum and directed positive-pressure air to dislodge debris while the cooling fan operates.

Significance. If the geometry and simultaneous vacuum-plus-pressure action function as described without interfering with the cooling fan or creating secondary blockages, the design could provide a practical mechanical solution for maintaining airflow through radiator screens on agricultural equipment. No performance data, scaling arguments, or comparative results are supplied, so significance remains at the level of an untested design claim.

minor comments (1)

The document is a set of mechanical claims rather than a scientific manuscript containing derivations, measurements, or falsifiable predictions; it therefore falls outside the scope of a research journal.

Simulated Author's Rebuttal

1 responses · 0 unresolved

We thank the referee for reviewing our patent application. The submission describes a mechanical aspiration system for agricultural vehicles; as a patent, its purpose is to claim novel apparatus features rather than to present experimental results.

read point-by-point responses

Referee: If the geometry and simultaneous vacuum-plus-pressure action function as described without interfering with the cooling fan or creating secondary blockages, the design could provide a practical mechanical solution for maintaining airflow through radiator screens on agricultural equipment. No performance data, scaling arguments, or comparative results are supplied, so significance remains at the level of an untested design claim.

Authors: We agree that the application contains no performance data; none is required for a U.S. patent. Patentability rests on novelty, non-obviousness, and enablement of the claimed structure (dual-passage wand with leading vacuum and trailing positive-pressure nozzle traversing a perforated screen). The specification supplies a complete written description and drawings sufficient for a person skilled in the art to make and use the device. Empirical validation is a matter for subsequent development or a separate technical paper. revision: no

Circularity Check

0 steps flagged

No circularity: mechanical design patent contains no derivations

full rationale

The document is a US patent whose content consists entirely of mechanical claims describing geometry, fluid connections, and component positioning for an aspiration cleaning system. No equations, fitted parameters, predictions, first-principles derivations, or theoretical results are present, so no load-bearing step can reduce to its own inputs by construction. The central claims are self-contained design assertions that stand or fall on physical realization rather than on any internal mathematical or definitional loop.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

No scientific axioms, free parameters, or invented physical entities are present; the text is an engineering claim describing a combination of known components (perforated screen, vacuum pump, positive-pressure pump, cooling fan).

pith-pipeline@v0.9.0 · 5682 in / 1038 out tokens · 26012 ms · 2026-06-03T10:01:25.060527+00:00 · methodology

Air screen cleaning system for agricultural vehicle

Core claim

What carries the argument

If this is right

Where Pith is reading between the lines

Load-bearing premise

What would settle it

discussion (0)