US3945155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing ice from a surface by blasting
Assignee: Wheelabrator Corp
•
Filing: 1974-01-14
•
Granted: 1976-03-23
•
Expires: 1994-01-14
Abstract
Abstract A method for treatment of a surface over which vehicles travel with particulate material is disclosed. Particulate material is projected onto the surface with kinetic energy exceeding the bonding energy of the surface or the bonding energy of a deposit adhering to the surface which it is desired to remove. In the former case the method effects texturing of the vehicular surface by pitting thereof. In the latter case the method effects cleaning of the surface by removing the bonded deposits therefrom. Additionally, the method can be used for preparing a surface for repaving or for removing ice therefrom.
Inventors
- 👤 Raymond M. Leliaert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:21
CPC Classifications
B; B24; B24C; B24C1/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
65 words
A method for removing ice from a surface comprising the steps of: a. selecting a particulate material according to the physical characteristics of the ice to be removed; b. Projecting the selected material onto the ice with kinetic energy sufficient to fragment the ice; c. recovering the particulate material; d. removing the ice fragments from the surface; and e. removing contaminants from the particulate material.
Claim 2
Independent Claim
65 words
A method for removing ice from a surface comprising the steps of: a. selecting a particulate material according to the physical characteristics of the ice to be removed; b. Projecting the selected material onto the ice with kinetic energy sufficient to fragment the ice; c. recovering the particulate material; d. removing the ice fragments from the surface; and e. removing contaminants from the particulate material.
Claim 3
Dependent Claim
45 words
The method according to claim 1 wherein the step of selecting the particulate includes the substeps of: determining the ambient temperature and the thickness of the ice to be fragmented; and selecting the composition, density and diameter of the particulate material required to fragment ice.
Claim 4
Dependent Claim
30 words
The method according to claim 1 wherein the step of projecting the material onto the surface includes the substep of: varying the kinetic energy to compensate for varying ice conditions.
Claim 5
Independent Claim
81 words
A method for removing ice from a surface comprising the steps of: a. selecting a particulate material according to the physical characteristics of the ice to be removed; b. projecting the selected material onto the ice with kinetic energy sufficient to fragment the ice; c. recovering the particulate material including the substeps of: screening the material to remove contaminants; removing water from the recovered particulate; reusing the particulate material for further ice removal; d. removing the ice fragments from the surface.
Claim 6
Independent Claim
81 words
A method for removing ice from a surface comprising the steps of: a. selecting a particulate material according to the physical characteristics of the ice to be removed; b. projecting the selected material onto the ice with kinetic energy sufficient to fragment the ice; c. recovering the particulate material including the substeps of: screening the material to remove contaminants; removing water from the recovered particulate; reusing the particulate material for further ice removal; d. removing the ice fragments from the surface.
Claim 7
Dependent Claim
17 words
The method of claim 1 including removing the water from the recovered particulate material by centrifugal action.
Claim 8
Dependent Claim
16 words
The method of claim 4 including removing the water from the recovered particulate material by heating.
References Cited (Backward Citations)
US2064344A
Cited
US2684558A
Cited
US2789804A
Cited
US3007191A
Cited
US3034262A
Cited
US3075319A
Cited
US3380196A
Cited
US3691689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |