1. Fixed weight dumbbell assembly, comprising:
a. handle bar having a spring, a spring pin and a lock pin, with axial opening on cut-off end of said handle bar made to contain thread lines;
b. a pair of weigh head each further having a ring of shoulder, a first ring of groove on first side of said shoulder and a second and third rings of groove on second side of said shoulder, with a hole formed through said shoulder;
c. a lock nut having matching washer piece, with thread lines formed to match those of said handle bar’s thread lines in the axial opening; and,
d. a cap piece further having a ring of lip on its cylindrical base to fit said second ring of groove on said weight head and an angled edge to fit said third ring of groove.
2. Dumbbell assembly of claim 1 wherein said spring pin is so situated in radial direction of said handle bar to snuggly fit into said first ring of groove on said weight head when said handle bar is inserted into said first side of said center bore of weight head, having end of handle bar flush with said shoulder.
3. Dumbbell assembly of claim 2 wherein said washer piece is fit snuggly onto said shoulder, pressing down said lock pin through said hole on said shoulder, into a hole on the cut off edge of handle bar, so that said handle bar will not spin or turn relative to said weight head when said lock nut is tightened and said cap piece is pressed in place, causing said ring of lip to snuggly fit into said second ring of groove and said angled edge to fit into said third ring of groove.
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 silicoaluminophosphate molecular sieve comprising at least one intergrown phase of molecular sieves having AEI and CHA frameworks, wherein said intergrown phase has an AEICHA ratio of from about 595 to 4060 as determined by DIFFaX analysis and having no reflection peak in the 9.8 to 12.0 (2\u03b8) range, using the powder X-ray diffraction pattern of a calcined sample of said silicoaluminophosphate molecular sieve.
2. The silicoaluminophosphate molecular sieve of claim 1, wherein said intergrown phase has an AEICHA ratio of from about 793 to 3862.
3. The silicoaluminophosphate molecular sieve of claim 1, wherein said intergrown phase has an AEICHA ratio of from about 892 to 3565.
4. The silicoaluminophosphate molecular sieve of claim 1, wherein said intergrown phase has an AEICHA ratio of from about 991 to 3367.
5. The silicoaluminophosphate molecular sieve of claim 1 wherein the molecular sieve having CHA framework is SAPO-34.
6. The silicoaluminophosphate molecular sieve of claim 1 wherein the molecular sieve having AEI framework is SAPO-18, ALPO-18 or a mixture of SAPO-18 and ALPO-18.
7. The silicoaluminophosphate molecular sieve of claim 1 wherein said silicoaluminophosphate molecular sieve has an X-ray diffraction pattern having at least one reflection peak in each of the following ranges in the 5 to 25 (2\u03b8) range:
2\u03b8 (CuK\u03b1)
9.3-9.6
12.7-13.0
13.8-14.0
15.9-16.1
17.7-18.1
18.9-19.1
20.5-20.7
23.7-24.0.
8. The silicoaluminophosphate molecular sieve of claim 7 wherein the X-ray diffraction pattern has no broad feature centered at about 16.9 (2\u03b8).
9. The silicoaluminophosphate molecular sieve of claim 7 wherein the reflection peak in the 17.7-18.1 (2\u03b8) range has a relative intensity between 0.09 and 0.40 with respect to the reflection peak at 17.9 (2\u03b8) in the diffraction pattern of SAPO-34, all diffraction patterns being normalized to the intensity value of the reflection peak in the 20.5-20.7 (2\u03b8) range.
10. The silicoaluminophosphate molecular sieve of claim 9 wherein the reflection peak in the 17.7-18.1 (2\u03b8) range has a relative intensity between 0.10 and 0.35 with respect to the reflection peak at 17.9 (2\u03b8) in the diffraction pattern of SAPO-34.
11. The silicoaluminophosphate molecular sieve of claim 1 wherein the silica to alumina molar ratio (SiO2Al2O3) ranges from 0.01 to 0.25.
12. The silicoaluminophosphate molecular sieve of claim 11 wherein the silica to alumina molar ratio (SiO2Al2O3) ranges from 0.02 to 0.20.
13. The silicoaluminophosphate molecular sieve of claim 11 wherein the silica to alumina molar ratio (SiO2Al2O3) ranges from 0.03 to 0.19.
14. The silicoaluminophosphate molecular sieve of claim 1, wherein the molecular sieve is comprised of crystalline plates, platelets or stacked platelets.
15. The silicoaluminophosphate molecular sieve of claim 14 wherein the average smallest crystal dimension of the molecular sieve is less than 0.1 micron.
16. A catalyst comprising the silicoaluminophosphate molecular sieve of claim 1 and a binder.