179684 ⎘
Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timer by movement or acceleration due to gravity by flowing-away of a prefixed quantity of fine-granular or liquid materials, e.g. sand-glass, water-clock
Sub-classes:DEVICE CONFIGURED TO VISUALLY TRANSFORM INTERNAL IMAGERY BY CASCADE OF FLOWABLE MEDIA
#2Timing device with bi-directional reset
#3Circuit device, oscillator, real-time clock device, electronic device, and vehicle
#4Retractable hand lamp
#5ADJUSTABLE HOURGLASS WITH RESET FUNCTION
#6Fluid timer
#7Time indicator
#8Hollow Body with Attractive Movement Effects
#9Tubular toothpaste tube stand with brushing timer
#10Magnetic time delay indicator and an injection device incorporating such
#11Effective life indicator and stopper including the same
#12Expiration indication label
#13Dye-based time-indicating label
#14HOURGLASS TIMER
#15Timepiece and Urn Combination Device
#16STIMULUS INDICATING DEVICE EMPLOYING POLYMER GELS
#17Fillable hourglass and method of using fillable hourglass
#18One piece self-expiring security badge or label with devices to print, activate and issue the time-label automatically
#19One piece self-expiring security badge or label
#20Open Life Indicator Label for Food Produce and Suchlike
#21Visual indicator chronograph and the use of the same
#22Heated volatile dispensing device with dye-based use-up indicator
#23One piece self-expiring security badge or label
#24Three-dimensional dye migration time indicator
#25Sandglass assembly
#26Stress luminescent device using stress luminescent material
#27Method for displaying time-dependent processes and toothbrush
#28Stimulus indicating device employing polymer gels
#29Particle-based time indicator and method for its use
#30Visual indicator chronograph and the use of the same
#31Long term rapid color changing time indicator
#32Timing device
#33Period indicator
#34Hourglass urn