US3797703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel supplying apparatus
Assignee: Tokico Ltd
•
Filing: 1973-02-14
•
Granted: 1974-03-19
•
Expires: 1993-02-14
Abstract
Abstract A fuel supplying apparatus comprises a fuel supplying hose pipe adapted to be extended downward from a take-up reel disposed above a fueling service area for fueling vehicles, a first indicator provided on the hose pipe, a second indicator installed on a structure such as a building part, means for measuring the quantity of fuel supplied and transmitting the measured result as an electrical signal to the first and second indicators, and means for mechanically zero-resetting the indication of the first indicator and electrically zero-resetting the indication of the second indicator.
Inventors
- 👤 S Yamawaki
- 👤 N Makita
- 👤 K Hirose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:36
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/08; B67D7/22; B67D7/221; B67D7/222; B67D7/04; B67D7/38; B67D7/40; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6918; Y10T137/6925
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
351 words
A fuel supplying apparatus comprising: an erected structure having an overhead structure extending horizontally over a fueling service area; a fuel storage reservoir for storing fuel; a stationary pipe having an open end communicating with the interior of said storage reservoir and extending through said erected sturcture; a flexible fuel-supplying pipe connected communicatively at one end thereof to the other open end of said stationary pipe and at the other end thereof to a dispensing nozzle and suspended from said overhead structure in a manner enabling the pipe to be lowered and raised; a first indicator provided at the end of said fuel-supplying pipe in the vicinity of said nozzle and operating in response to an electrical signal to indicate fuel quantity; a second indicator secured to one part of said erected structure and operating in rEsponse to an electrical signal to indicate fuel quantity; a pump for pumping fuel from said storage reservoir through said stationary pipe; a flowmeter for measuring the quantity of fuel flowing through said stationary pipe; a signal emitter for emitting electrical signals in accordance with measurement of said flowmeter; a first transmitting wire extending along said erected structure and said fuel-supplying pipe and adapted to transmit each electrical signal emitted by said signal emitter to said first indicator, a second transmitting wire extending along the erected structure and adapted to transmit said electrical signal to said second indicator; means provided at said first indicator and being operable to mechanically reset to zero the indication of said first indicator and, at the same time, to emit a zero-resetting signal; means for operating in response to said zero-resetting signal to reset electrically to zero the indication of said second indicator; a delivery switch adapted to be closed when said flexible fuelsupplying pipe is lowered to a predetermined height; and pump control means operating, when a zero-resetting signal is emitted with said delivery switch in its closed state, to start said pump and thereafter to maintain the pump in its driven state when the delivery switch is closed even if there is no emission of a zero-resetting signal.
Claim 2
Dependent Claim
351 words
A fuel supplying apparatus comprising: an erected structure having an overhead structure extending horizontally over a fueling service area; a fuel storage reservoir for storing fuel; a stationary pipe having an open end communicating with the interior of said storage reservoir and extending through said erected sturcture; a flexible fuel-supplying pipe connected communicatively at one end thereof to the other open end of said stationary pipe and at the other end thereof to a dispensing nozzle and suspended from said overhead structure in a manner enabling the pipe to be lowered and raised; a first indicator provided at the end of said fuel-supplying pipe in the vicinity of said nozzle and operating in response to an electrical signal to indicate fuel quantity; a second indicator secured to one part of said erected structure and operating in rEsponse to an electrical signal to indicate fuel quantity; a pump for pumping fuel from said storage reservoir through said stationary pipe; a flowmeter for measuring the quantity of fuel flowing through said stationary pipe; a signal emitter for emitting electrical signals in accordance with measurement of said flowmeter; a first transmitting wire extending along said erected structure and said fuel-supplying pipe and adapted to transmit each electrical signal emitted by said signal emitter to said first indicator, a second transmitting wire extending along the erected structure and adapted to transmit said electrical signal to said second indicator; means provided at said first indicator and being operable to mechanically reset to zero the indication of said first indicator and, at the same time, to emit a zero-resetting signal; means for operating in response to said zero-resetting signal to reset electrically to zero the indication of said second indicator; a delivery switch adapted to be closed when said flexible fuelsupplying pipe is lowered to a predetermined height; and pump control means operating, when a zero-resetting signal is emitted with said delivery switch in its closed state, to start said pump and thereafter to maintain the pump in its driven state when the delivery switch is closed even if there is no emission of a zero-resetting signal.
Claim 3
Dependent Claim
80 words
A fuel supplying apparatus as claimed in claim 1 which further comprises a hose reel provided on said erected structure and adapted to rotate to alternately wind up and unwind said flexible fuel-supplying pipe and a spiral-shaped wire cable connected to an appropriate part of said first wire and adapted to absorb any twisting in the first wire extending through the fuel-supplying pipe due to the rotation of said hose reel accompanying the winding up and unwinding the fuel-supplying pipe.
Claim 4
Dependent Claim
79 words
A fuel supplying apparatus as claimed in claim 2 which further comprises a third wire connected to said first wire outside of said fuel-supplying pipe, a first wire reel winding up said third wire in one direction, and a second wire reel winding up the third wire in the direction opposite to said one direction, said spiral-shaped wire cable being connected to the end at the innermost winding turn of said third wire wound on said second wire reel.
Claim 5
Dependent Claim
124 words
A fuel supplying apparatus as claimed in claim 1 in which said zero-resetting means provided at said first indicator comprises: a zero-resetting push button; a first lever pivotally rotated by the pushing movement of said push button; a second lever urged by a torque to rotate in a direction for being engaged by said first lever and normally being thus engaged and locked by said first lever, said second lever undergoing abrupt rotation upon being disengaged and released when said first lever rotates to a predetermined position; a mechanism operated by said abrupt rotation of the second lever to reset to zero the indication of the first indicator; and a microswitch closed by said rotation of the second lever to emit a zero-resetting signal.
Claim 6
Dependent Claim
130 words
A fuel supplying apparatus as claimed in claim 4 in which said first lever has an engagement end for engaging said second lever during rotation of the first lever up to a predetermined position and a cutout part into which the second lever drops as the first lever thereafter rotates further, and said zero-resetting mechanism comprises a resetting lever for striking against a heart-shaped cam of an index wheel of said first indicator thereby to reset the indicator to zero, means for urging said resetting lever in the direction for thus striking against said heart-shaped cam, and a member operating to engage and lock said resetting lever against the force of said urging means and actuated by said rotation of the second lever to disengage and release the resetting lever.
Claim 7
Dependent Claim
118 words
A fuel supplying apparatus as claimed in claim 1 in which said pump control means comprises a first relay operated at the time of generation of each zero-resetting signal, a second relay connected in series with said delivery switch, a relay switch of said first relay and a first relay switch of said second relay both connected in series with said delivery switch and the second relay and mutually connected in parallel, and a second relay switch of the second relay for closing the circuit of a driving power supply to said pump; and said first relay is connected in parallel with the series-connected combination of the delivery switch, the parallelly connected relay switches, and the second relay.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |