1. A computer-implemented method for controlling access to a computing device, the method comprising:
displaying a user-rotatable three-dimensionally rendered object on a display of the computing device, the object presenting a plurality of user-selectable visual indicia such that only a subset of the indicia are visible at any one angle of rotation; and
providing access to the computing device based on user input received in relation to at least one of the visual indicia.
2. The method as claimed in claim 1 wherein providing the access comprises:
receiving first user input to rotate the three-dimensionally rendered object; and
receiving second user input to select at least one of the plurality of visual indicia.
3. The method as claimed in claim 2 wherein receiving the first user input comprises receiving a touch gesture on a touch-sensitive display.
4. The method as claimed in claim 2 wherein receiving the first user input comprises receiving a contactless gesture detectable by a contactless gesture recognition system.
5. The method as claimed in claim 1 wherein the object comprises a plurality of independently rotatable rings that together form a generally spherical shape.
6. The method as claimed in claim 5 wherein each of the independently rotatable rings is formed of a plurality of mini-spheres each having its own unique visual indicium.
7. The method as claimed in claim 1 further comprising displaying an object reconfiguration screen to receive user selection of an object shape from among a selection of spherical and polyhedral shapes.
8. The method as claimed in claim 7 further comprising displaying an indicia reconfiguration screen to receive user selection of a type of indicia from among a selection of indicia comprising letters, numbers, symbols, colours, and photographs.
9. The method as claimed in claim 8 further comprising receiving further input to assign photographs stored in a memory of the computing device to predetermined surface areas of the object.
10. The method as claimed in claim 1 wherein the object visually transforms onscreen to signify that access is granted.
11. A computer-readable medium comprising instructions in code which when loaded into a memory and executed by a processor of a computing device cause the computing device to:
display a user-rotatable three-dimensionally rendered object on a display of the computing device, the object presenting a plurality of user-selectable visual indicia such that only a subset of the indicia are visible at any one angle of rotation; and
provide access to the computing device based on user input received in relation to at least one of the visual indicia.
12. The computer-readable medium as claimed in claim 11 wherein the code for providing access comprises:
code for receiving first user input to rotate the three-dimensionally rendered object; and
code for receiving second user input to select at least one of the plurality of visual indicia.
13. The computer-readable medium as claimed in claim 11 wherein the object comprises a plurality of independently rotatable rings that together form a generally spherical shape wherein each of the independently rotatable rings is formed of a plurality of mini-spheres each having its own unique visual indicium.
14. The computer-readable medium as claimed in claim 11 further comprising code for causing the device to display one of (i) an object reconfiguration screen to receive user selection of an object shape from among a selection of spherical and polyhedral shapes and (ii) an indicia reconfiguration screen to receive user selection of a type of indicia from among a selection of indicia comprising letters, numbers, symbols, colours, and photographs.
15. The computer-readable medium as claimed in claim 11 further comprising code for causing the device to receive further input to assign photographs stored in a memory of the computing device to predetermined surface areas of the object.
16. A computing device comprising:
a display for displaying a user-rotatable three-dimensionally rendered object presenting a plurality of user-selectable visual indicia such that only a subset of the indicia are visible at any one angle of rotation;
a user input device for receiving user input in relation to at least one of the visual indicia; and
a processor operatively coupled to memory for determining if user access is to be granted to the computing device based on the user input.
17. The computing device as claimed in claim 16 wherein the processor is configured to:
rotate the three-dimensionally rendered object in response to receiving first user input; and
receive second user input to select at least one of the plurality of visual indicia.
18. The computing device as claimed in claim 16 wherein the object comprises a plurality of independently rotatable rings that together form a generally spherical shape wherein each of the independently rotatable rings is formed of a plurality of mini-spheres each having its own unique visual indicium.
19. The computing device as claimed in claim 16 wherein the processor causes the display to display one of (i) an object reconfiguration screen to receive user selection of an object shape from among a selection of spherical and polyhedral shapes and (ii) an indicia reconfiguration screen to receive user selection of a type of indicia from among a selection of indicia comprising letters, numbers, symbols, colours, and photographs.
20. The computing device as claimed in claim 16 wherein the processor causes the object to visually transform onscreen to signify that access is granted.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A reciprocating compressor comprising:
a cylinder block having formed therein a plurality of cylinder bores;
a valve plate having formed therein pairs of holes with each pair constituted of a suction hole and a discharge hole, in correspondence with one of said cylinder bores;
a first head fixed to said cylinder block via said valve plate and having formed therein a suction chamber that is allowed to come into communication with said suction hole and a discharge chamber that is allowed to come into communication with said discharge hole;
a second head fixed to said cylinder block having formed therein a crankcase;
a shaft rotatably disposed so as to pass through said crankcase; and
pistons that reciprocally slide inside said cylinder bores as said shaft rotates, characterized in:
that an oil separation means that separates lubricating oil mixed in a working fluid discharged into said discharge chamber and an oil tank in which the lubricating oil having been separated at said oil separation means is stored are provided; and
that part of said oil tank is disposed at said cylinder block and a suction path through which the working fluid flows is formed at said cylinder block so as to surround said oil tank to allow the lubricating oil collected in said oil tank to be cooled with a working fluid guided into said suction chamber.
2. A reciprocating compressor according to claim 1, characterized in: that said suction path is constituted with a suction port through which the working fluid is taken in from outside, a chamber formed at said cylinder block so as to surround said oil tank and to open toward said valve plate, a first passage communicating between said suction port and said chamber and a second passage formed at said valve plate and communicating between said chamber and said suction chamber.
3. A reciprocating compressor according to claim 2, characterized in: that said chamber is formed so as to surround said cylinder bores as well.
4. A reciprocating compressor according to claim 3, characterized in: that said chamber is formed by leaving tubular walls around said oil tank and around said cylinder bores; and that reinforcement ribs bridge said tubular walls with each other.
5. A reciprocating compressor according to claim 2, characterized in: that a control passage, the degree of openness of which is adjusted with a pressure control valve is formed between said discharge chamber and said crankcase; that a first lubricating oil supply path formed by opening an end of said control passage facing said crankcase toward a peripheral edge of said swash plate and a second lubricating oil supply path through which the lubricating oil collected in said oil tank is supplied to lubrication-requiring portions around said shaft via a passage formed at said shaft are achieved; and that said crankcase and said chamber are made to communicate with each other via a leak passage formed at said cylinder block.
6. A reciprocating compressor according to claim 2, characterized in: that a control passage, the degree of openness of which is adjusted with a pressure control valve is formed between said discharge chamber and said crankcase; that a first lubricating oil supply path formed by opening an end of said control passage facing said crankcase toward a peripheral edge of said swash plate and a second lubricating oil supply path through which the lubricating oil collected in said oil tank is supplied to lubrication-requiring portions around said shaft via a passage formed at said cylinder block and said second head and also via a passage formed at said shaft communicating with said passage are achieved; and that said crankcase and said chamber are made to communicate with each other via said passage formed at said shaft and a leak passage formed at said cylinder block and communicating with said passage.
7. A reciprocating compressor according to claim 2, characterized in: that a sub-suction chamber in which the working fluid flowing in through said suction port is stored is disposed between said suction port and said chamber.
8. A reciprocating compressor according to claim 1, characterized in: that part of said oil tank is disposed at said first head; and that said suction chamber is formed at said first head so as to surround said oil tank.
9. A reciprocating compressor according to claim 1, characterized in: said oil separation means includes an oil separation chamber communicating with said discharge chamber and achieves centrifugal separation whereby the working fluid having flowed in from said discharge chamber is rotated in said oil separation chamber to separate the lubricating oil, with part of said oil separation chamber made to overlap with said oil tank to achieve communication.
10. A reciprocating compressor according to claim 1, characterized in: that said cylinder block, said valve plate, said first head and said second head are fastened together with tightening bolts; and that said tightening bolts are disposed further outward relative to said cylinder bores at positions with a phase matching the phase of said cylinder bores.
11. A reciprocating compressor according to claim 1, characterized in: that said cylinder block, said valve plate, said first head and said second head are fastened together with tightening bolts; and a greater number of tightening bolts compared to the number of cylinder bores are used.