Automatic animal feeding system for automatically removing food pod lids

Charles Putland, Ben Lomond, CA (US); Eric Liu, Houston, TX (US); George Turvey, Brookdale, CA (US); Jeffrey Pon, Southlake, TX (US); Matthew Firlik, Buena Park, CA (US); Peter Franklin, Austin, TX (US)

USPTO: us-12628793 · published 2026-05-19 · patents · A01K 5/0283· A01K 5/0114· A01K 5/0121· A01K 5/0128· A01K 5/0208· A01K 5/0225· A01K 5/0233· A01K 5/025

Automatic animal feeding system for automatically removing food pod lids

Peter Franklin, Austin, TX (US) , Jeffrey Pon, Southlake, TX (US) , Matthew Firlik, Buena Park, CA (US) , Eric Liu, Houston, TX (US) , George Turvey, Brookdale, CA (US) , Charles Putland, Ben Lomond, CA (US) This is my paper

Pith reviewed 2026-05-21 21:01 UTC · model grok-4.3

classification patents A01K 5/0283A01K 5/0114A01K 5/0121A01K 5/0128A01K 5/0208A01K 5/0225A01K 5/0233A01K 5/025

keywords automatic pet feederfood pod de-liddinglead screw mechanismrotary platepiercing cuttersealed pet food

0 comments

The pith

A motorized lead-screw cutter on a rotary plate automatically removes lids from pet-food pods before dispensing.

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

The patent describes an automatic pet feeding system built around a rotating plate that holds sealed food pods inside an enclosure. A separate de-lidding assembly uses a motor-driven cutting module that travels along a lead screw; once the module is coaxially aligned above a pod, the motor rotates the piercing member to slice or pry off the lid. The design thereby allows pre-packaged, lidded food to be loaded in advance and opened on demand without manual intervention. If the mechanism works as described, it removes the main practical obstacle to fully automated feeding from sealed single-serve pods.

Core claim

The system achieves automatic lid removal by coupling a de-lidding motor to a cutting module that rides on a lead screw; controlled rotation of the module about the screw axis drives a piercing member through the lid once the module is coaxially aligned with the pod holder on the rotary plate.

What carries the argument

De-lidding mechanism consisting of a lead screw, a cutting module with piercing member threaded onto the screw, and a reversible de-lidding motor that drives the module along and around the screw axis.

If this is right

Multiple pods can be staged and opened sequentially by indexing the rotary plate.
The enclosure keeps opened food protected until the next feeding cycle.
Control signals allow the same motor to both advance the cutter and rotate the piercing element.

Where Pith is reading between the lines

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

The same rotary-plus-lead-screw layout could be adapted to other single-serve containers beyond pet food.
Integration with a simple timer or app would turn the mechanical de-lidding step into a complete scheduled feeder.

Load-bearing premise

The piercing member and lead-screw motion will consistently cut or lift pod lids without jamming or leaving fragments that could block later dispensing.

What would settle it

Repeated operation with real sealed pods shows frequent jamming, incomplete lid removal, or pod damage that prevents clean dispensing.

read the original abstract

1 . An automatic pet feeding system, comprising: a rotary plate comprising a food pod holder and enclosed by an enclosure, the rotary plate configured to rotate within the enclosure and about a first axis; and a de-lidding mechanism, having— a lead screw comprising screw threads, a cutting module rotatably coupled to the lead screw via the screw threads and comprising a piercing member, wherein rotation of the cutting module about the lead screw causes rotation of the piercing member, and a de-lidding motor coupled to the cutting module, the de-lidding motor being configured to— (1) receive a first control signal to control the rotation of the cutting module along a first rotation direction about a second axis, and (2) receive a second control signal to control the rotation of the cutting module along a second rotation direction about the second axis, wherein at least one of the first control signal or the second control signal causes the piercing member to remove a lid of a food pod positioned within the food pod holder when the cutting module is coaxially aligned with the food pod holder.

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 utility patent on a rotary pet-feeder with lead-screw lid cutter; the mechanism is internally consistent but uses ordinary components and supplies no test data.

read the letter

The core idea is a rotary plate holding food pods plus a motor-driven cutting module on a lead screw that pierces and removes the lid once the pod is aligned. That specific arrangement is what the patent actually claims as new. The description is clear enough to enable a skilled mechanic to build the device, and the control logic for the two rotation directions is laid out without obvious internal contradictions. Beyond that, the parts are standard: lead screws, piercing cutters, and rotary carousels already appear in kitchen appliances and vending machines. No performance numbers, jam rates, or lid-fragment tests are given, so the reliability claim rests on the drawings alone. The document is a patent filing, not a research paper, so questions of statistical soundness or parameter fitting do not apply. For an engineer designing the next pet-feeder prototype the drawings and claim language could be useful as a starting point. For anyone looking for validated mechanical performance or a scientific advance, there is nothing here to cite or build experiments on. If the question is whether to send it out for peer review as if it were a journal submission, the answer is no; it belongs in the patent office, not a technical journal.

Referee Report

1 major / 1 minor

Summary. The manuscript presents a utility patent for an automatic pet feeding system. It comprises a rotary plate with food pod holders enclosed in a housing, together with a de-lidding mechanism that uses a lead screw, a cutting module carrying a piercing member, and a de-lidding motor. Controlled rotation of the cutting module about the lead screw brings the piercing member into coaxial alignment with a pod so that lid removal occurs under motor command.

Significance. If the described kinematics function as specified, the design supplies an enabling mechanical solution for fully automatic pod opening in a rotary feeder, removing the need for manual lid handling. The disclosure is internally consistent as a constructional specification but contains no performance data, reliability metrics, or failure-mode analysis.

major comments (1)

Claim 1 (and the corresponding description of the lead-screw / cutting-module assembly): the functional requirement that 'the piercing member [will] remove a lid … when the cutting module is coaxially aligned' is stated without any supporting dimensional tolerances, force limits, or jamming-prevention features. This assumption is load-bearing for the central utility claim yet remains unverified within the specification.

minor comments (1)

The abstract and claim language mix apparatus and method elements; separating the independent claim into distinct apparatus and method claims would improve clarity for examination.

Simulated Author's Rebuttal

1 responses · 0 unresolved

We thank the referee for the careful reading and constructive comment on Claim 1. Below we respond point-by-point. Because the manuscript is a utility-patent specification rather than an experimental paper, our reply focuses on enablement requirements under patent law while remaining open to any clarifying amendments the examiner may request.

read point-by-point responses

Referee: Claim 1 (and the corresponding description of the lead-screw / cutting-module assembly): the functional requirement that 'the piercing member [will] remove a lid … when the cutting module is coaxially aligned' is stated without any supporting dimensional tolerances, force limits, or jamming-prevention features. This assumption is load-bearing for the central utility claim yet remains unverified within the specification.

Authors: We respectfully note that a utility patent need not recite numerical tolerances or force values to satisfy 35 U.S.C. § 112 enablement when the specification supplies a complete structural description of the mechanism (lead screw, threaded cutting module, piercing member, and motor-driven rotation). The claim language is functional yet tied directly to the disclosed kinematics; a person skilled in the art can select appropriate dimensions, motor torque, and anti-jam features for any given pod geometry without undue experimentation. Nevertheless, if the examiner prefers, we are prepared to add a dependent claim or paragraph that explicitly lists representative clearance ranges and a spring-loaded compliance feature to prevent jamming. revision: partial

Circularity Check

0 steps flagged

No significant circularity

full rationale

The document is a utility patent whose central claim is a mechanical design specification (lead-screw, cutting module, motor control) rather than a falsifiable derivation or prediction. No equations, fitted parameters, self-referential predictions, or load-bearing self-citations exist; the disclosure is internally consistent as an enabling description without any reduction of outputs to inputs by construction.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

No free parameters, mathematical axioms, or postulated physical entities are present; the document is an engineering design specification.

pith-pipeline@v0.9.0 · 5836 in / 924 out tokens · 29370 ms · 2026-05-21T21:01:20.502508+00:00 · methodology

discussion (0)

Lean theorems connected to this paper

Citations machine-checked in the Pith Canon. Every link opens the source theorem in the public Lean library.

IndisputableMonolith.Foundation.RealityFromDistinction reality_from_one_distinction unclear

?

unclear
Relation between the paper passage and the cited Recognition theorem.

a lead screw comprising screw threads, a cutting module rotatably coupled to the lead screw via the screw threads and comprising a piercing member, wherein rotation of the cutting module about the lead screw causes rotation of the piercing member, and a de-lidding motor coupled to the cutting module
IndisputableMonolith.Foundation.DimensionForcing alexander_duality_circle_linking unclear

?

unclear
Relation between the paper passage and the cited Recognition theorem.

the rotary plate configured to rotate within the enclosure and about a first axis

What do these tags mean?

matches: The paper's claim is directly supported by a theorem in the formal canon.
supports: The theorem supports part of the paper's argument, but the paper may add assumptions or extra steps.
extends: The paper goes beyond the formal theorem; the theorem is a base layer rather than the whole result.
uses: The paper appears to rely on the theorem as machinery.
contradicts: The paper's claim conflicts with a theorem or certificate in the canon.
unclear: Pith found a possible connection, but the passage is too broad, indirect, or ambiguous to say the theorem truly supports the claim.