Closures TRIZ Cases

See how an acid-sensitive copolymer underlayer with photoacid generators enables lithographic s

See how rotary and sliding adjustment valves simplify air vent control in food storage boxes, r

See how a dual-member valve with resilient outer sleeve and apertured inner flange prevents low

See how a dual-outlet lid uses pivoting lever arms, biasing members, and a sliding trigger to s

See how a multiple-position selector enables liquid dispensing through a straw or by inversion,

See how dual air and discharge valves respond to pressure changes to prevent contamination, sim

See how a discharge head attachment with porous film and cylindrical openings reduces bubble di

See how a rotatable spout and pivoting flap enable switching between sipper hole and straw with

See how a rotating cap integrates a collapsible straw and spout to provide flexible drinking op

See how a concave gasket profile with continuous resilient material enables ceramic or glass dr

See how staggered outlet openings in a dual-liquid mouthpiece deliver flavorful liquid directly

See how an elastic press cover with a flexible diaphragm and check valve enables one-press air

See how convex-concave wall geometry and inverted lid positioning create controlled apertures f

See how a sliding sub-cap with elastic positioning beads locks in closed and open positions to

See how a rotary venting rod with recessed slot equalizes container pressure to prevent liquid

See how a flip spout mechanism nested within a collar uses co-molding and flexible enclosure to

See how a spring-loaded center cap with side vents enables controlled aroma release while prese

See how a jar-shaped frosting dispenser uses an impeller platform, threaded drive shaft, and si

See how a nested compartment design with spring-biased sealing and activation mechanism enables

See how a rotary venting rod with recessed slots simplifies lid venting, enables easy cleaning,

See how a pod-piercing dosage system delivers pre-measured cleaning concentrate into fluid tank

See how a rotatable spout unit mechanically transmits motion to open an airtight seal, balancin

See how a vent conduit extending into the bottle equalizes pressure to enable high flow rates w

See how a cradle, sliding lock, and canula assembly secure the container and protect the membra

See how a detachable flexible spout with automatic dome closure reduces manual contact and bact

See how a rotatable auxiliary lid with air guide slot enables one-handed opening while balancin

See how a gear-driven no-touch straw mechanism transitions automatically with lid movement to e

See how a gas relief valve in a drink-straw lid releases excess pressure to prevent beverage sp

See how a beverage mixing assembly positions the drinking port adjacent to the cartridge recept

See how a base connecting cap and separate base member enable 180° rotation from bottle to wine

See how separate air and liquid pistons with a porous body and nozzle design increase foam disc

See how a sealed disposable container with an internal steam injector enables high-quality flui

See how a removable slider with magnetic coupling prevents spilling, enables easy cleaning, and

See how a food container integrates ambient light and proximity sensors with an LED indicator i

See how a single-container dispenser uses a sliding chamber and pushbutton mechanism to mix pow

See how a segmented mounting base with elastic fit enables easy disassembly of the ball-nose sp

See how a slidable powder chamber inside a liquid container enables one-handed mixing initiatio

See how a pivoting flap valve switches between spill-proof sipping and free pouring, resolving

See how a movable straw port, resilient diaphragm, and removable valve enable secure storage, p

See how a multi-cavity liquid dispenser uses pressure differentials and liquid recovery to achi

See how a silicone rubber cap with an inner band replaces plastic caps to provide water-proof,

See how asymmetric body-side and button-side ribs prevent accidental latch detachment in househ

See how a pump-type disinfectant bottle mounted on an aircraft lavatory unit enables passengers

See how a magnetic closure element with helical engagement and lever-activated control prevents

See how a shaft-shaped plug with stacked annular seals prevents water leakage at the outlet whi

See how a frangible vent plug and tamper-evident latch indicate first use and prevent vacuum bu

See how a tumbler integrates transparent display, wireless communication, and battery power to

See how a segmented wine cup uses composite materials and stem-like structure to prevent tippin

See how a threaded cap with push-button spout enables one-handed pouring while maintaining carb

See how a rotary venting rod with a recessed slot replaces complex valve-core engagement, simpl

A collapsible tube and latchable cover restrict fluid flow when closed, reducing bottle lid leaks while keeping contents easy to access.

A nested plug and elastic member cut hot-fluid dead volume near the piercing needle, reducing bacterial growth and machine bulk.

A two-portion hinged valve opens under low suction yet stays sealed under container pressure to prevent spills when tilted or shaken.

A partial cover with a built-in edge lets users level measured spice with one hand, reducing spillage and waste during cooking.

A narrow vent channel in the cap flange maintains airflow under tightening while preventing liquid leakage from the drinking vessel.

A rotatable disk and lockable flap enable full open or controlled dispensing without removing the closure, reducing spills during pouring.

A rotating cover and closure member let children stow or use the straw easily while keeping the cup sealed and drinkable without the straw.

Two converging drinking slots raise flow during sucking while resealing securely after release to limit spills and support cup-drinking training.

A hinged two-part valve opens with low suction force yet stays sealed under pressure, helping drink containers resist spills when shaken or inverted.

Flowable PCM filled at packaging replaces pre-conditioned gel packs while maintaining a uniform thermal profile in cold-chain shippers.

A threaded adjusting member and removable safety pin let container pumps meter discharge accurately while preventing accidental child use.

A dual-valve lid vents fermentation gases from stored coffee beans while blocking outside air to preserve a hermetic seal and freshness.

A partly movable dispensing cap keeps wipes accessible, reduces roping, maintains withdrawal tension, and limits volatile loss with a secure seal.

A one-piece diaphragm valve keeps a child’s cup sealed yet opens with lower vacuum pressure, reducing leaks and making cleaning easier.

A movable insert selectively blocks dispenser channels to let users vary multi-phase oral composition ratios while keeping distinct streams separate.

A rigid, small-section vent channel balances pressure during drinking while maintaining liquid-tight sealing and reducing leakage risk.

Parallel interface vents opening near the mouth improve inner bag delamination at lower pressure while staying compatible with dispensing appliances.

An elastic chamber pump uses pressure-driven slot opening and refill flow to dispense viscous products cleanly with low effort and less contamination.

Attaching the food protector directly to the drop-in pan fixes shield position, preventing code violations and costly countertop rework.

A bellows spring pump mixes air with soap to dispense stable foam, cutting liquid use and reducing runoff on hands and surfaces.

A pre-curved snap membrane keeps a drinking mouthpiece valve open during sucking, while sealing reliably and limiting leakage.

An annular membrane and ring vent air into a drinking cap under suction while preserving residual vacuum to resist liquid leakage.

Gravity-fed hopper unloading and a pierceable cover cut powder loss, dusting, contamination, and aroma loss during bulk powder tank refilling.

A push-open valve, widened closing ring, and added seals let users drink while moving and prevent leaks in bags or briefcases.

A movable exit plate cuts sheet stress during angled pulls, improving centerflow roll dispensing and tear control at the exit port.

A porous foaming element with different pore-size zones mixes air and liquid under pressure to cut parts and improve foam consistency.

A reconfigurable vessel, lid, citrus reamer, cap, and nested cups combine juicing, mixing, and serving in one portable kit.

A two-stage valve equalizes pressure before the drinking port opens, improving flow and making a leak-resistant lid easier to actuate.

A cap-controlled vent admits air under negative pressure while staying closed during carrying to prevent leaks and keep straw drinking easy.

A flexible diaphragm valve opens under lower suction while maintaining leak resistance and allowing easier cleaning and reassembly.

A resilient bellows in the lid pumps air through a hot beverage to cool it without lid removal, reducing spills and burn risk.

Pre-sealed multi-portion milk powder storage cuts capsule changes and helps beverage machines produce more consistent milk foam.

An internal hopper and tearable membrane enable clean bulk powder refilling with less dust, contamination, aroma loss, and transfer waste.

A closed-top lid uses a fillable cooling reservoir and access channels to cool a sip of hot beverage while limiting spills during tilting.

Sloped rotating driver members replace long push bars, advancing the piston with less arc to keep wall-mounted dispensers compact.

Two tapered parallel slits in a soft drinking teat open at low suction for higher flow, then close securely to limit spillage.

A movable seal covers dispensing openings until use, preventing condiment leakage, dust, and humidity exposure while keeping dispensing easy.

By separating the reusable air compressor from the cartridge liquid pump, this foam dispenser design cuts cartridge cost and avoids replacing the air section.

Snap-fit hooks and recesses let ornamental panels be replaced easily while keeping washing machine door trims aligned and resistant to distortion.

A resilient diaphragm demand valve seals tighter under container pressure, preventing leaks from hot or carbonated drinks and easing cleaning.

Superimposed cartridge and housing markings create a readable code to track refills and discourage third-party cartridge use.

A unitary compliant valve combines sealing, spring force, and seal breaking to simplify container closure across temperature and carbonation changes.

A flexible tube and vent nub release pressure as the spout opens, preventing unexpected fluid leakage after temperature changes.

A phone-mounted compressible sanitizer reservoir adds portable hand hygiene while using a safety cap to prevent accidental discharge.

A flexible cover and retention basin contain liquids and solids from submarine line ends, avoiding individual capping during transport.

A filtered breather cap and splash guard keep hydraulic tank pressure equalized while blocking fluid splash and external contamination.

A low-wetting container wall and sealed feed pipe help battery binder stay homogeneous in storage and reduce coating defects during extraction.

A resin locking claw with cam grooves and a roller enables metal-free operation, smooth return, and reliable lid sealing for wafer protection.

Pressure-equalizing vent channels with a dustproof labyrinth keep wafer pucks from deforming while maintaining clean gas exchange.

A corrugated compressible cap protects the driveshaft transaxle end from debris and corrosion while allowing snug fit and easy removal.

A liquid-absorbing cap removes condensation and foreign matter from a fuel gas receptacle to prevent nozzle freezing and fixation.

A detachable venting and drying unit dehumidifies incoming air during pressure compensation to keep immersion-cooled battery coolant dry.

Sensors and dual correction units automate forming head alignment, cutting manual correction time and enabling real-time battery can quality control.

A ball-and-spring vent in the pouch seal releases excess gas under pressure while preserving sealability and battery case protection.

A wave washer, swivel guard, and cam lock raise removal friction to stop fire department connection cap theft and thermal loosening.

Magnetic friction engagement secures tubular thread protectors quickly, cutting installation and removal time in casing and tubing operations.