SENTINEL CAP
The problem: drink spiking is a persistent, high-visibility safety issue in pubs, bars, clubs and festivals. Patrons face a binary choice — stand over a drink all night or leave it exposed. Venues carry the reputational and duty-of-care cost either way.
The device: a palm-sized cover that drops over standard glassware and locks with a resettable 3-digit combination. A fixed Ø92mm housing carries an internal radial clamp — spinning the dial drives the lock onto the glass from the inside, sealing the drink until the owner returns and enters their code. Food-grade materials throughout, dishwasher safe, no keys, no app.
The business case: venues deploy them as a duty-of-care feature and a branded asset — the top plate carries venue, sponsor or brewery livery, turning a safety device into a merchandising surface. Low part count, standard food-safe ABS, modelled for venue-scale unit economics.
- 3-digit resettable combination + colour lock-status band
- Internal radial clamp — tool-free fit across Ø 60–95mm glassware
- Anti-lift secure lip defeats prying once locked
- Venue/sponsor brandable top plate
- Targets: pub groups, breweries, festival operators, drinkware OEMs
MECHANISM — OVERVIEW
Fixed-profile housing, internal radial grip. No flexing shell, no stretch-to-fit compromises:
- Rotary input — the combination dial turns a central internal cam
- Linear extension — the cam drives two opposing slider arms outward on guided internal tracks
- Under-rim grip — food-grade silicone pads seat beneath the rim shoulder, pulling the cap down onto its outer sealing ring
- Positive lock / instant release — cam detent holds the arms extended; a correct code releases springs that retract the grippers instantly
- Universal fit — a 180° dial turn yields ~35mm of mechanical travel, covering Ø 60–95mm glassware in one fixed 92mm footprint
Anti-tamper architecture, cam geometry and tooling detail are released under NDA only.
TECHNICAL PACK — NDA GATED
Deeper detail is released under a mutual non-disclosure agreement, issued via the commercial intake gateway.
- Anti-tamper architecture — tension isolation, false gates, blind shrouding
- Cam & slider geometry, detent and release specification
- Seal specification & glass-rim tolerance band
- Module breakdown, tooling approach & bill of materials
- Deployment formats (venue packs, retail multipack) + unit economics
Requests route via products@williamsquantum.com — triaged by the agent core, countersigned by a principal.