1. A computer readable medium storing data operable to configure a computer to perform a set of tasks comprising:
a) receive, from a first user, a first request to view a document;
b) based on receiving the first request, retrieve a first record comprising a set of data elements from a data warehouse, and display a first representation of the document, the first representation of the document comprising:
i) a form portion comprising a plurality of fields;
ii) the set of data elements, wherein each data element from the set of data elements is displayed in a field from the plurality of fields;
c) receive a first user specified data element from the first user;
d) based on receiving the first user specified data element, perform a first set of acts comprising:
i) create a first user new record in the data warehouse, the first user new record comprising the first user specified data element;
ii) restrict the first user from adding information to document;
iii) authorize a second user to add information to the document; and
iv) send a first notification to the second user;
e) receive, from the second user, a second request to view the document;
f) based on receiving the second request, retrieve the first user new record from the data warehouse, and display a second representation of the document, the second representation of the document comprising:
i) the form portion;
ii) a second set of data elements, the second set of data elements comprising the first user specified data element, wherein each data element from the second set of data elements is displayed in a field from the plurality of fields;
g) receive a second user specified data element from the second user;
h) based on receiving the second user specified data element, perform a second set of acts comprising:
i) create a second user new record in the data warehouse, the second user new record comprising the second user specified data element;
ii) restrict the second user from adding information to the document;
iii) authorize the first user to add information to the document; and
iv) send a second notification to the first user.
2. The computer readable medium of claim 1, wherein:
a) the set of tasks comprises allowing an accepting user to create a final document by indicating acceptance of a final representation of the document;
b) the final representation of the document comprises a data element specified by a proposing user;
c) the accepting user is one of the users taken from the list consisting of:
i) the first user; and
ii) the second user;
d) the proposing user is one of the users taken from the list consisting of:
i) the first user; and
ii) the second user;
e) the accepting user and the proposing user are not the same user; and
f) at the time the accepting user indicates acceptance of the final representation of the document, the accepting user is authorized to add information to the document.
3. The computer readable medium of claim 2, wherein the final document is a real estate transaction contract.
4. The computer readable medium of claim 1, wherein the set of tasks comprises, based on a request for a document history:
a) retrieving, from the data warehouse, a set of records, the set of records comprising each record which comprises an element selected from the list consisting of:
i) information entered by the first user after requesting to view the document; and
ii) information entered by the second user after requesting to view the document;
b) presenting the document history, the document history comprising:
i) each data element from each record in the set of records;
ii) markup showing differences in corresponding data elements between records; and
iii) an indication of whether each data element was provided by the first user or the second user.
5. The computer readable medium of claim 1, wherein the set of tasks comprises:
a) receiving a withdrawal request from a withdrawing user, the withdrawing user being a user selected from the list consisting of the first user and the second user, the withdrawing user being restricted from adding information to the document at the time of the withdrawal request;
b) based on receiving the withdrawal request:
i) restrict the non-withdrawing user from adding information to the document; and
ii) authorize the withdrawing user to add information to the document;
the non-withdrawing user being a user selected from the list consisting of the first user and the second user; and
the non-withdrawing user not being the same user as the withdrawing user.
6. A method comprising a set of steps performed by a central server, the set of steps comprising:
a) receive, from a first user, a first request to view a document;
b) based on receiving the first request, retrieve a first record comprising a set of data elements from a data warehouse, and display a first representation of the document, the first representation of the document comprising:
i) a form portion comprising a plurality of fields;
ii) the set of data elements, wherein each data element from the set of data elements is displayed in a field from the plurality of fields;
c) receive a first user specified data element and a first user authentication from the first user;
d) based on receiving the first user specified data element, perform a first set of acts comprising:
i) create a first user new record in the data warehouse, the first user new record comprising:
a first timestamp;
an indication of the first user;
the first user specified data element;
ii) restrict the first user from adding information to document;
iii) authorize a second user to add information to the document; and
iv) send a first notification to the second user;
e) receive, from the second user, a second request to view the document;
f) based on receiving the second request, retrieve the first user new record from the data warehouse, and display a second representation of the document, the second representation of the document comprising:
i) the form portion;
ii) a second set of data elements, the second set of data elements comprising the user specified data element, wherein each data element from the second set of data elements is displayed in a field from the plurality of fields;
g) receive a second user specified data element and a second user authentication from the second user;
h) based on receiving the second user specified data element, perform a second set of acts comprising:
i) create a second user new record in the data warehouse, the second user new record comprising:
a second timestamp;
an indication of the second user;
the second user specified data element;
ii) restrict the second user from adding information to the document;
iii) authorize the first user to add information to the document; and
iv) send a second notification to the first user.
7. The method of claim 6, wherein:
a) the set of steps comprises allowing an accepting user to create a final document by indicating acceptance of a final representation of the document;
b) the final representation of the document comprises a data element specified by a proposing user;
c) the accepting user is one of the users taken from the list consisting of:
i) the first user; and
ii) the second user;
d) the proposing user is one of the users taken from the list consisting of:
i) the first user; and
ii) the second user;
e) the accepting user and the proposing user are not the same user; and
f) at the time the accepting user indicates acceptance of the final representation of the document, the accepting user is authorized to add information to the document.
8. The method of claim 7, wherein the final document is a real estate transaction contract.
9. The method of claim 6, wherein the set of steps comprises, based on a request for a document history:
a) retrieving, from the data warehouse, a set of records, the set of records comprising each record which comprises an element selected from the list consisting of:
i) information entered by the first user after requesting to view the document; and
ii) information entered by the second user after requesting to view the document;
b) presenting the document history, the document history comprising:
i) each data element from each record in the set of records;
ii) markup showing differences in corresponding data elements between records; and
iii) an indication of whether each data element was provided by the first user or the second user.
10. The method of claim 6, wherein the set of steps comprises:
a) receiving a withdrawal request from a withdrawing user, the withdrawing user being a user selected from the list consisting of the first user and the second user, the withdrawing user being restricted from adding information to the document at the time of the withdrawal request;
b) based on receiving the withdrawal request:
i) restrict the non-withdrawing user from adding information to the document; and
ii) authorize the non-withdrawing user to add information to the document;
the non-withdrawing user being a user selected from the list consisting of the first user and the second user; and
the non-withdrawing user not being the same user as the withdrawing user.
11. A computer readable medium storing data operable to configure a computer to perform a set of tasks comprising:
a) receive a set of real property information;
b) store said set of real property information in a data warehouse;
c) compare said set of real property information against a set of pre-existing information from the data warehouse; and
d) automatically generate an output based on the comparison.
12. The computer readable medium of claim 11, wherein the output comprises an element selected from the list consisting of:
a) an indication of whether a set of terms proposed during a negotiation is acceptable; and
b) a report benchmarking a set of properties reflected in the set of real property information.
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. Vacuum pumping apparatus comprising:
a scroll set having an inlet and an outlet, said scroll set comprising a stationary scroll element including a stationary scroll blade and an orbiting scroll element including an orbiting scroll blade, wherein said stationary and orbiting scroll blades are intermeshed together defining one or more interblade pockets;
a motor; and
a crankshaft operatively coupled between the motor and the orbiting scroll element, which produces orbiting movement of said orbiting scroll blade relative to said stationary scroll blade when said motor is energized, said crankshaft comprising a first component of a first material rigidly joined to a second component of a second material, wherein the first and second materials have different coefficients of thermal expansion.
2. Vacuum pumping apparatus as defined in claim 1, wherein said first and second materials are metals.
3. Vacuum pumping apparatus as defined in claim 1, wherein said first material comprises steel and said second material comprises an iron-nickel alloy having a low coefficient of thermal expansion.
4. Vacuum pumping apparatus as defined in claim 2, wherein the first component is friction welded to the second component.
5. Vacuum pumping apparatus as defined in claim 1, wherein the first component is mechanically affixed to the second component.
6. Vacuum pumping apparatus as defined in claim 1, wherein the first component is swaged to the second component.
7. Vacuum pumping apparatus as defined in claim 1, wherein the first component is threaded to the second component.
8. Vacuum pumping apparatus as defined in claim 1, further comprising a pump frame, wherein said motor and said stationary scroll element are secured to the pump frame.
9. Vacuum pumping apparatus as defined in claim 8, wherein said crankshaft is rotatably secured to the pump frame at one end.
10. Vacuum pumping apparatus as defined in claim 1, wherein dimensions and materials of the first and second components of the crankshaft are selected to provide a desired axial thermal expansion.
11. Vacuum pumping apparatus comprising:
a pump frame;
a stationary scroll element secured to the pump frame, the stationary scroll element including a stationary scroll blade;
an orbiting scroll element including an orbiting scroll blade intermeshed with said stationary scroll blade;
a motor secured to the pump frame; and
a crankshaft coupled between the motor and the orbiting scroll element producing orbiting movement of said orbiting scroll blade relative to said stationary scroll blade when said motor is energized, said crankshaft comprising a first component having a first coefficient of thermal expansion and a second component having a second coefficient of thermal expansion.
12. Vacuum pumping apparatus as defined in claim 11, wherein the first component comprises steel and the second component comprises an iron-nickel alloy having a low coefficient of thermal expansion.
13. Vacuum pumping apparatus as defined in claim 11, wherein said first and second components are fabricated of metals.
14. Vacuum pumping apparatus as defined in claim 11, wherein the first component is friction welded to the second component.
15. Vacuum pumping apparatus as defined in claim 11, wherein the first component is mechanically affixed to the second component.
16. A method for operating vacuum pumping apparatus of the type comprising a first scroll element and a second scroll element, comprising:
producing orbiting motion of said second scroll element relative to said first scroll element with a motor and an eccentric crankshaft, said eccentric crankshaft comprising a first component having a first coefficient of thermal expansion rigidly joined to a second component having a second coefficient of thermal expansion.
17. The method as defined in claim 16, wherein the first component comprises steel and the second component comprises an iron-nickel alloy having a low coefficient of thermal expansion.
18. The method as defined in claim 16, further comprising selecting dimensions and materials of the first and second components of the crankshaft to provide a desired axial thermal expansion.